General Industry

    General Industry

    General Industry

General Industry

From paper and metals to sweeteners and electronics, most of the world’s products depend on reliable fluid motion and control solutions. Endless demanding and complicated application parameters are found in industries such as food and beverage, mining, steelmaking, and pulp and paper. Flowserve has a global portfolio of solutions and technical expertise capable of tackling the tough and often unique requirements found in these industries. A global network of Quick Response Centers delivers the timely technical support, parts and service needed to keep operations running dependably and profitably.

General Industry

From paper and metals to sweeteners and electronics, most of the world’s products depend on reliable fluid motion and control solutions. Endless demanding and complicated application parameters are found in industries such as food and beverage, mining, steelmaking, and pulp and paper. Flowserve has a global portfolio of solutions and technical expertise capable of tackling the tough and often unique requirements found in these industries. A global network of Quick Response Centers delivers the timely technical support, parts and service needed to keep operations running dependably and profitably.

STANDARD CARTRIDGE SEALS

ISC2 seals

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The ISC2 Series provides exceptional reliability and standardization over a wide variety of industrial applications and equipment. Available in single and dual arrangement, pusher and metal bellows types.

SPECIFICATIONS

Pressure: pusher to 20.6 bar (300 psi); bellows to 13.8 bar (200 psi)
Temperature: -40°C to 204°C (-40°F to 400°F)
Speeds to: 23 m/s (75 fps)
Shaft Sizes: pusher 25 to 200 mm (1.000 to 8.000 in); bellows to 95 mm (3.750 in)

FEATURES & BENEFITS

  • Lower total cost of ownership from advanced seal design features that enable superior reliability
  • Broad application flexibility assured by comprehensive range of pre-engineered configurations and materials; custom solutions also available
  • Reduced operating costs via standardization to ISC2 Series, which enables less inventory, greater flexibility, less downtime and longer seal life
  • Increased plant and personnel safety delivered by cartridge security and compliance with all major international standards
ISC2-PP

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These dual cartridge pusher seals from the versatile ISC2 Series bring superior reliability to ASME, ISO, JIS and API pumps used in chemical, power, water, oil and gas, and other industries.

specifications

Press. to: 20.6 bar (300 psi)
Temp: -40°C to 204°C (-40°F to 400°F)
Speeds to: 23 m/s (75 fps)
Sizes: 25 to 200 mm (1.000 to 8.000 in)

FEATURES & BENEFITS

  • Reliable operation resulting from advanced volute groove design and internal circulating devices that promote cool running
  • Longer service life via a stationary face support drive mechanism that reduces wear in applications with high vibration levels, and springs and pins outside the process for reduced corrosion and clogging
  • Application flexibility with double-balanced seal face geometry, allowing both pressurized and unpressurized operation; ISC2-682PP provides full API 682 compliance
Series 80/CPM

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The Series 80 seal is one of Flowserve’s Heritage products that has a proven track record of performance. Built with premium materials, this Stationary designed, Hydraulically balanced seal succeeds in the most challenging applications.

Flowserve spun off the more popular sizes of the Series 80 and formed the CPM seal which allows us to compete with today’s low cost seal manufacturers. The CPM line of seals are used for competitor change outs in general service applications. Compared to other light duty seals, the CPM seal weights 30% more due to the heavy duty gland design. The flush port is also larger than most light duty seals making the CPM seal a better all-around choice.

SPECIFICATIONS

Press. to vacuum to 400 psig (27 bar)
Temp: -40 to 400 F (-40 to 204 C)
Speeds to: 100 ft/min (30m/s)
Sizes: 3/4″ to 3.750″

FEATURES & BENEFITS

  • Robust rotary face design is flexibly mounted, enhancing the ability to survive shock and face distortion typically found in clamped seal face designs.
  • Springs located outside the process fluid deter chemical stress corrosion and spring clogging by dirty process fluids.
  • Hydraulically balanced seal design reduces friction, heat and wear with lower loading forces while maintaining a lubrication film between the mating faces.
  • Floating stationary to accommodate out-of-square pump misalignment.

PUSHER SEALS (SPRINGS)

QB Seal

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QB Series balanced pusher seals are ideal for medium-duty applications in power and industrial applications.

SPECIFICATIONS

Pressure: to: 51.7 bar (750 psi)
Temperature: -40°C to 204°C (-40°F to 400°F)
Speeds to: 23 m/s (75 fps)
Shaft Sizes: 12.7 to 139.7 mm (0.500 to 5.500 in)

FEATURES & BENEFITS

  • Greater reliability and installation ease assured by rugged components, heavy-duty seal faces and cartridge seal configuration
  • Combat dirty services with the clog-resistant large cross-section, single coil spring in the QBS seal
  • Handle low lubricity hot water without the need for auxiliary cooling systems with the QBU seal
  • Choice of throttle bushing design: fixed, floating or segmented for safe equipment operation
D Seal

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D Series single spring, balanced pusher seals have a high-circulation integral pumping ring to ensure proper cooling. Ideal for high-temperature boiler feed water and hot hydrocarbon services.

SPECIFICATIONS

Pressure: to: 103.4 bar (1500 psi)
Temperature: -73°C to 343°C (-100°F to 650°F)
Speeds to: 23 m/s (75 fps)
Shaft Sizes: 13.4 to 137 mm (0.525 to 5.400 in)

FEATURES & BENEFITS

  • Cost-effective operation ensured by integrated pumping ring that eliminates the expense of cool injection systems
  • Greater reliability due to the rotating face that remains flat under all conditions for very low leakage
  • Consistent seal face contact provided by robust U-cup seal and spring holder
  • Superior high-temperature performance enabled by large, low spring rate single coil spring that tolerates axial setting variations
RO Seals

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This single, unbalanced, multi-spring component seal is usable as an inside or outside mounted seal. Suitable for abrasive, corrosive and viscous fluids in chemical services.

specifications

Pressure: to: 20.7 bar (300 psi)
Temperature: -40°C to 260°C (-40°F to 500°F)
Speeds to: 23 m/s (75 fps)
Shaft Sizes: 9.5 to 115 mm (0.375 to 4.500 in)

FEATURES & BENEFITS

  • Increased durability from robust rotating spring compression unit that helps to keep solids away from the seal faces and removes seal-generated heat
  • Improved reliability with rotating seal ring that is independently centered on the shaft and has multiple springs and drive pins that evenly distribute the load
  • Broad application flexibility enabled by completely interchangeable shaft packing materials, dimensionally interchangeable insert mounting, and compression unit availability in any machinable metallurgy
UHTW and DHTW

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These high-speed, high-pressure balanced pusher seals are custom-engineered for high-energy applications such as boiler-feed process barrel pumps.

specifications

Press. to: 207 bar (3000 psi)
Temp: -40°C to 371°C (-40°F to 700°F)
Speeds to: 76 m/s (250 fps)
Sizes: 25.4 to 228.6 mm (1.000 to 9.000 in)

FEATURES & BENEFITS

  • Unmatched performance and extended seal life derived from FEA-designed seal faces that boast zero net deflection from thermal, hydraulic, and dynamic forces
  • Superior high temperature, slow roll, and hot standby operation enabled by high performance circulating features that deliver optimum cooling at all operating speeds
  • Reliable operation in high speed services achieved via precisely controlled seal face balance ratio and robust drive engagement
  • Extended equipment uptime with available secondary containment options
CRO Seal

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The CRO is an economical, single-coil spring, friction drive component seal for use in pumps with packing box seal chambers. Available in single or dual arrangements.

SPECIFICATIONS

Press. to: 20.7 bar (300 psi)
Temp: -40°C to 260°C (-40°F to 500°F)
Speeds to: 23 m/s (75 fps)
Sizes: 9.5 to 115 mm (0.375 to 4.500 in)

FEATURES & BENEFITS

  • Longer service life derived from rotating seal ring that self-centers around the shaft and withstands the harsh demands of cyclic operation or continuous duty
  • Increased durability from robust single-coil spring that resists clogging and chemical attack
  • Simplified installation and improved corrosion resistance due to a design with a minimum number of seal components with heavy cross-sections
RA and RA-C

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With its composite rotor, the RA single outside-mounted component seal is a cost-effective solution for highly corrosive chemical services. Suitable for metallic and nonmetallic equipment, such as plastic, glass and lined designs.

SPECIFICATIONS

Press. to: 27.6 bar (400 psi)
Temp: -40°C to 177°C (-40°F to 350°F)
Speeds to: 23 m/s (75 fps)
Sizes: 13 to 127 mm (0.500 to 5.000 in)

FEATURES & BENEFITS

  • Installation ease with design that attaches to the outside of the seal chamber
  • Corrosive application performance and flexibility provided by seal faces and elastomers in diverse materials, plus non-wetted drive collar, springs and drive pins on the RA-C configuration to avoid the need for expensive alloys
  • Greater reliability assured by flexible rotor design, hydraulically balanced to provide proper face loading
  • Better process control via double O-ring mounted stator that prevents distortion

METAL BELLOWS SEALS

ISC2-BX

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Single cartridge metal bellows seals from the versatile ISC2 Series, the ISC2-BX and ISC2-XB are ideal for a wide range of chemical and industrial applications. ISC2-682 versions provide full API 682 compliance.

specifications

Press. to: 13.8 bar (200 psi)
Temp: -40°C to 204°C (-40°F to 400°F
Speeds to: 23 m/s (75 fps)
Sizes: 25 to 95 mm (1.000 to 3.750 in)

FEATURES & BENEFITS

  • Outstanding corrosion resistance with edge-welded Alloy C-276 bellows
  • Reduced hang-up due to self-cleaning rotating bellows design that maintains excellent seal face loading
  • Improved tolerance to dry running events with exclusive thermal management technology
  • Broad application flexibility assured by comprehensive range of pre-engineered configurations with standard flush (BX), Plan 23 cooling (XB) and API 682 compliance
  • Increased safety via throttle bushing with standard quench and drain
BX Series

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BX Series balanced rotating metal bellows seals provide exceptional reliability in corrosive and non-corrosive fluids, especially those that crystallize. Fully compliant with API 682 Type B, Arrangements 1, 2 and 3.

SPECIFICATIONS

Press. to: 27.6 bar (400 psi
Temp: -40°C to 204°C (-40°F to 400°F)
Speeds to: 23 m/s (75 fps)
Sizes: 12.3 to 127 mm (0.483 to 5.000 in)

FEATURES & BENEFITS

  • Longer service life with 0.20 mm (0.008 in) thick standard welded metal bellows for resistance to corrosion, shaft vibration and centrifugal forces
  • Optimal performance ensured by three standard seal face balances; the BXQ seal is high balanced for flashing hydrocarbon applications
  • Increased maintenance intervals due to self-cleaning rotating bellows that replace springs and dynamic elastomers
  • Performance benefits of metal bellows in dual pressurized Arrangement 3 seals with the BXB seal’s unique ID pressurized seal face balance
BXRH

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Built for temperatures beyond the limits of elastomers, the BXRH balanced stationary metal bellows seal offers reliable sealing at high speeds. Meets all API 682 Type C requirements in Arrangements 1, 2 and 3.

SPECIFICATIONS

Press. to: 20.7 bar (300 psi)
Temp: -73°C to 427°C (-100°F to 800°F)
Speeds to: 46 m/s (150 fps)
Sizes: 21.8 to 127 mm (0.857 in to 5.000 in)

FEATURES & BENEFITS

  • Optimal performance resulting from flexible graphite gasketing in lieu of elastomers to improve temperature and chemical compatibility
  • Reliability due to extra-long Alloy 718 bellows that offer superior corrosion resistance, allow more axial travel, and provide consistent spring loading
  • Application flexibility arising from single and dual seal configurations as well as pressurized and unpressurized arrangements
  • Reduced clogging due to absence of springs and dynamic elastomers, plus standard anti-coke device

MIXER SEALS

M Series

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M Series vertical shaft mixer seals easily adapt to changing production requirements. They are designed for use with mixers, agitators, filters and dryers as well as steel- or glass-lined vessels.

specifications

Press: vacuum to 35 bar (500 psi)
Temp: to 200°C (390°F)
Speed: to 10 m/s (33 fps)
Sizes: 40 to 220 mm (1.575 to 9.000 in)

FEATURES & BENEFITS

  • Unprecedented application flexibility provided by cartridge canister design that enables the seal faces to be changed out to run wet (MW), dry contacting (MD) or dry non-contacting gas barrier technology (ML)
  • True component standardization with reduced inventory carrying costs owing to a high degree of parts interchangeability across the product line
  • Optional materials compliant with FDA CFR 21, USP Class VI, ADI Free Components and similar specifications
  • Specialized solutions customized up to 480 mm (18.900 in) shaft size (MWC-200)
VRA

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The VRA is an outside-mounted, dry-running single pusher seal designed to operate on top-entry agitators and mixers. Self-lubricating carbon or filled PTFE seal faces run completely dry without cooling.

SPECIFICATIONS

Press: vacuum to 13.8 bar (200 psi)
Temp: to 121°C (250°F)
Speed: to 350 rpm
Sizes: 25 to 178 mm (1.000 to 7.000 in)

FEATURES & BENEFITS

  • Cost savings provided by contacting dry-running design and two-piece collar, which respectively eliminate the need for a buffer fluid system and expensive alloys in non-wetted areas
  • Optimized for high run-out requirements — up to 3.81 mm (0.150 in) FIM
  • High reliability provided by flexible rotor design that compensates for misalignment and double O-ring mounted stator that prevents distortion
  • Reduced downtime facilitated by optional sanitary gland that allows steam cleaning and sterilizing of the seal’s interior while mounted on the equipment
MSS Mixer Split Seal

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The MSS is for tough mixer and vessel applications where stuffing box face, bore and OD run-out are extreme. Typically used on older equipment or where compression packing had been used.

SPECIFICATIONS

Press: vacuum to 7 bar (100 psi)
Temp: to 150°C (300°F)
Speed: to 1740 rpm
Sizes: 25 to 305 mm (1.000 to 12.000 in)

FEATURES & BENEFITS

  • Easy installation, inspection and maintenance facilitated by outside seal arrangement and split design
  • Fits in tight spaces with no equipment tear down; can be installed in cramped stuffing box areas where the bearing housing, gear box or coupling create obstructions
  • Reliable operation owing to self-lubricating faces and design that dissipates heat from seal faces, which allows it to run dry or wet
  • Product purity ensured by design that compensates for pressure reversals
BRO Seal

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The BRO Seal was designed for large diameter mixer shafts. The unique design allows a large cross-section of carbon to be used as a seal ring, so that the rotating carbon face can be assembled in the rotary unit by the seal manufacturer.

specifications

Press. up to 400 psig (27 bar)
Temp: up to 250 F (121 C)
Speeds to: 3500 fpm (18m/s)

FEATURES & BENEFITS

  • Flowserve designed the BRO seal to handle shaft movement found in larger shaft sized equipment.
  • Maximum flexibility of the rotating seal is achieved because the carbon seal ring can float within the shroud.
  • Balanced version is called BPO
  • Seal is designed to fit most OEM housings.
ISC2-MW

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The ISC2-MW is a dual-arrangement standard cartridge pusher seal engineered for reliable, cost-effective operation in mixer service.

specifications

Press: to 6.9 bar (100 psi)
Temp: -40°C to 204°C (-40°F to 400°F)
Speed: to 1.1 m/s (3.5 fps)
Sizes: 25 to 200 mm (1.000 to 8.000 in)

FEATURES & BENEFITS

  • Reduced installation and maintenance costs assured by economical cartridge seal design for top-entry installation
  • Increased uptime resulting from volute groove, which significantly increases barrier fluid flow to promote cool running, even at mixer speeds
  • Reliable operation ensured by ISC2 thermal management technology that allows the seal to run cooler and tolerate dry-running events

GAS BARRIER SEALS

GF-200

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This dual pressurized non-contacting, gas barrier pusher seal is used in applications where zero emissions of hazardous pumped products can be tolerated

specifications

Press. to: 34.5 bar (500 psi)
Temp: -40°C to 260°C (-40°F to 500°F)
Speeds: 1.3 to 25 m/s (4 to 82 fps)
Sizes: 25.4 to 152 mm (1.000 to 6.000 in)

FEATURES & BENEFITS

  • Environmental regulatory compliance assured by inert gas barrier that operates with zero process emissions
  • Greater reliability enabled by spring energized O-ring technology to maintain proper seal face tracking
  • Longer service life from silicon carbide seal faces using APG precision face topography, which creates a stiff, thin gas film that prevents wear
  • Economical performance via non-contacting seal faces that require very low power consumption during startup and operation
GX-200

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GX-200 dual metal bellows seals utilize APG non-contacting seal face technology for outstanding performance in a variety of applications. Fits standard or small bore seal chambers without modifications.

SPECIFICATIONS

Press. to: 13.8 bar (200 psi)
Temp: -40°C to 260°C (-40°F to 500°F)
Speeds: 2.5 to 35 m/s (8 to 115 fps)
Sizes: 25.4 to 76.2 mm (1.000 to 3.000 in)

FEATURES & BENEFITS

  • Environmental regulatory compliance assured by inert gas barrier that operates with zero process emissions
  • Long-term reliability provided by high alloy metal bellows that resist contamination and hang-up while providing pressure reversal product containment during upset events
  • Lower operation and maintenance costs provided by unique design that eliminates the costs of maintaining a liquid barrier system and the risks of barrier fluid contamination
  • Economical performance enabled by energy-efficient design that delivers the industry’s lowest power consumption for conventional pumps
GSL

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GSL non-contacting gas seals are designed for dry running vapor containment and full pressure wet backup sealing in light hydrocarbon, crude oil and hazardous services.

SPECIFICATIONS

Press. to: 41.4 bar (600 psi)
Temp: -40°C to 204°C (-40°F to 400°F)
Speeds: 1.5 to 30.5 m/s (5 to 100 fps)
Sizes: 20.6 to 152 mm (0.813 to 6.000 in)

FEATURES & BENEFITS

  • Fully compliant with API 682 Type A, Arrangement 2 containment seal requirements
  • Greater reliability and service life assured by silicon carbide seal face with a bidirectional wave pattern that provides the lift necessary for non-contacting operation
  • Improved plant and personnel safety from backup sealing capability to 600 psi (41.4 bar), allowing safe shutdown if primary seal fails
  • Faster, trouble-free startup via cartridge assembly that simplifies installation
  • Meets environmental emission limits with available nitrogen sweep auxiliary system

COMPRESSOR SEALS 

Gaspac T, L, D and S

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The Gaspac is a proven platform of dry gas seals for turbomachinery equipment and features either bi-directional T-Groove or Advanced Pattern Groove (APG) non-contacting seal face technologies.

specifications

Press. to: 650 bar (9427 psi)
Temp: to 230°C (450°F)
Speeds to: 250 m/s (820 fps)
Sizes: to 360 mm (14.125 in)

FEATURES & BENEFITS

  • Environmental regulatory compliance and energy savings assured by controlled gas flow rates over the widest operating conditions
  • Increased reliability with precision face topography that offers high film stiffness and damping, and maintains a stable gas film under slow roll and high speeds
  • Application versatility from a wide range of single and dual configurations with process barrier and oil exclusion features
  • Increased uptime via innovative solutions for secondary sealing, reverse rotation, reverse pressurization and component centering
Circpac CB, LO and HP

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This high-performance segmented circumferential gas seal series is engineered for gas compressors as part of a Gaspac assembly (Circpac CB and LO) or as a stand-alone cartridge (Circpac HP).

SPECIFICATIONS

Press. to: 10 bar (150 psi)
Temp: -40°C to 180°C (-40°F to 350°F)
Speeds to: 140 m/s (460 fps)
Sizes: to 280 mm (11.000 in)

FEATURES & BENEFITS

  • Consistent performance from carbon ring construction designed for non-contacting operation that exceeds the pressure capability of typical circumferential seals
  • Increased reliability via pressure-balanced ring design and hydrodynamic surface features, resulting in low gas consumption and long life
  • Enhanced application versatility enabled by multiple ring combinations with optimized purge and vent options
  • Lower cost of ownership with fewer spare parts provided by bi-directional capability for reverse rotation

SLURRY SEALS

SLC Series

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SLC seals are heavy-duty, single pusher cartridge seals built for the harshest slurry pump services found in mining, mineral and ore processing, and flue gas desulfurization. Suitable for solids to 60% by weight.

specifications

Press. to: 20.6 bar (300 psi)
Temp: -18°C to 110°C (10°F to 230°F)
Speeds to: 15 m/s (50 fps)
Sizes: 32 to 220 mm (1.250 to 8.661 in)

FEATURES & BENEFITS

  • Lower operating costs ensured by unique non-clogging, encapsulated cone spring, which increases reliability and enables flushless operation
  • Maximized equipment uptime provided by abrasion-resistant metal components and silicon carbide faces that extend seal life beyond that of slurry pump components
  • Economical performance via clean, open design, which operates without flush water to reduce product dilution and eliminate flush water costs
  • Ease of installation resulting from cartridge design that requires no special tools or bearing housing adjustments
SLM Series

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These balanced single (SLM-6000) or dual (SLM-6200) cartridge pusher seals have a flexible stator and operate without outside flush liquid to eliminate product dilution, increase plant efficiency and reduce costs.

SPECIFICATIONS

Press. to: 17.2 bar (250 psi)
Temp: -40°C to 149°C (-40°F to 300°F)
Speeds to: 23 m/s (75 fps)
Sizes: 50 to 235 mm (2.000 to 9.250 in)

FEATURES & BENEFITS

  • Increased reliability and consistent “no visible leakage” operation due to line-on-line, hydraulically balanced faces
  • Extended seal life enabled by centroid-loaded monoblock rotor that helps to maintain zero net deflection, reducing leakage and wear
  • Reduced maintenance costs provided by large cross-section stator O-ring, which allows maximum shaft movement while reducing the damaging effects of hang-up
  • Dependable performance provided by single seals handling solids to 20%, dual seals to 60% solids, and quench options providing complete application flexibility
RIS

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The RIS rubber-energized, component slurry seal features a unique non-clogging design that does not utilize springs or bellows. Handles solids to 50% by weight.

SPECIFICATIONS

Press. to: 10.3 bar (150 psi)
Temp: -4°C to 110°C (25°F to 230°F)
Speeds to: 11 m/s (36 fps)
Sizes: 32 to 235 mm (1.250 to 9.250 in)

FEATURES & BENEFITS

  • Ease of installation provided by innovative adaptive components that allow the seal to be installed from the wet end and adjusted externally
  • Longer MTBF from non-clogging elastomer spring design that has no dynamic O-ring to hang up
  • Reliable operation ensured by the rubber-energized stationary seal face that holds the seal faces together and absorbs relative shaft movement
  • Reduced operating costs and improved control made possible by flushless operation, which is especially beneficial in flue gas desulphurization

SPECIAL DUTY SEALS

PSS 4

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The PSS 4 semi-cartridge split seal is ideal for pump and mixer applications. With only two major components, it makes installation quick and easy without requiring equipment teardown.

specifications

Press.: Vacuum to 30 bar (450 psi)
Temp: -18°C to 121°C (0°F to 250°F)
Speeds: to 19.3 m/s (3800 fpm)
Sizes: 38 to 152 mm (1.500 to 6.000 in); contact Flowserve for larger sizes

FEATURES & BENEFITS

  • Exclusive 3D Key technology assures optimum face alignment in both axial and radial direction, reducing leakage and installation time
  • Unique setting tabs eliminate all seal positioning, measuring and marking, assuring installation success
  • Easily handles mixer equipment runout up to 1.5 mm (0.060 in) TIR radial shaft movement
  • Fully split design installs easily around the shaft, outside the seal chamber, eliminating the need to dismantle the equipment
BulkTite

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Designed for rotating equipment handling powder and bulk solids, BulkTite seals improve sealing performance with non-wearing, low-maintenance solutions for screw conveyors, rotary airlocks, mixers, de-lumpers and more.

SPECIFICATIONS

Press. to: Vacuum to 3.3 bar (50 psi)
Temp: 0°C to 121°C (32°F to 250°F)
Speeds to: 16.6 m/s (54 fps)
Sizes: 12 to 152 mm (0.500 to 6.000 in)

FEATURES & BENEFITS

  • Easy cartridge seal installation, minimizing downtime
  • Superior seal life with 3.2 mm (0.125 in) radial shaft movement, up to 2° angular misalignment and axial shaft movement
  • Minimal gas consumption for reduced operating costs
Pac-Seals

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The Pac-Seal family of component seals is available in numerous designs and styles, including diaphragm elastomer bellows to fit a wide range of standard industrial and custom equipment applications.

SPECIFICATIONS

Press. to: 27 bar (400 psi)
Temp: -40°C to 204°C (-40°F to 400°F)
Speeds to: 25 m/s (83 fps)
Sizes: 15.8 to 150 mm (0.625 to 6.000 in)

FEATURES & BENEFITS

  • Low cost of ownership enabled by readily available components with multiple material options
  • Excellent reliability ensured by standardized features, including crimped-head rotary units and hex-torque drive
  • Easy installation with no set screws or setting clips
  • Custom designs with flexible inventory, logistics and packaging solutions for high-volume OEM orders ensure the right supply requirements are fully achieved
PL Series

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PL Series seals are pre-engineered single (PL-100) and dual (PL-200) cartridge seals with non-metallic wetted components. They are a cost-effective alternative to high-alloy seals in ASME and ISO pumps in corrosive services.

specifications

Press.: Vacuum to 10.3 bar (150 psi)
Temp: -18°C to 150°C (0°F to 300°F)
Speeds: to 23 m/s (60 fps)
Sizes: 35 to 53 mm (1.375 to 2.750 in)

FEATURES & BENEFITS

  • Greater reliability from special carbon fiber reinforced PTFE construction that provides excellent corrosion resistance and mechanical properties to maintain seal integrity
  • Longer service life and MTBF ensured by springs and pins that are isolated from the product to prevent clogging and chemical attack
  • Reduced maintenance costs with replaceable carbon fiber PTFE liner that protects the 316 SS gland
  • Affordable alternative to high-alloy single or dual metal seals
LS-300

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This cartridge-style, multiple dynamic lip seal is designed for highly viscous applications in positive displacement and progressive cavity pumps.

SPECIFICATIONS

Press. to: 10.3 bar (150 psi)
Temp: -53°C to 149°C (-65°F to 300°F)
Speeds to: 3.5 m/s (12 fps)
Sizes: 19.1 to 76.2 mm (0.750 to 3.000 in)

FEATURES & BENEFITS

  • Greater process accuracy from seal designed to run dry, without the need for an external flush or lubricating barrier fluid
  • Reliable operation ensured by triple-lip design effectively seals process from atmosphere at viscosities up to 12 000 cP
  • Installation ease assured by preset cartridge
  • Application flexibility enabled by design that is interchangeable between standard and universal bracket pumps with just a gasket change
  • Ease of field maintenance made possible by optional repair kit
Circpac MD

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The Circpac MD is a segmented circumferential seal designed for fans, blowers, dryers, turbines, centrifuges and other rotating equipment.

SPECIFICATIONS

Press.: Vacuum to 6.9 bar (100 psi)
Temp: -40°C to 593°C (-40°F to 1100°F)
Speeds to: 46 m/s (150 fps)
Sizes: 25.4 to 457 mm (1.000 to 18.000 in)

FEATURES & BENEFITS

  • Superior performance with lower gas consumption ensured by hydraulically balanced ring design that consistently outperforms packing, bushings, labyrinths and felt seals
  • Installation ease with radially split seal housing that mounts outside the seal chamber without modification or dismantling
  • Increased durability provided by robust carbon rings with foul-resistant joints and large bearing pads that maintain integrity during off-design operation
  • Application flexibility with multiple ring configurations that can be staged for reduced leakage, pressurized for zero process emissions, or added for emergency backup

STANDARD CARTRIDGE SEALS

ISC2 seals

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The ISC2 Series provides exceptional reliability and standardization over a wide variety of industrial applications and equipment. Available in single and dual arrangement, pusher and metal bellows types.

SPECIFICATIONS

Pressure: pusher to 20.6 bar (300 psi); bellows to 13.8 bar (200 psi)
Temperature: -40°C to 204°C (-40°F to 400°F)
Speeds to: 23 m/s (75 fps)
Shaft Sizes: pusher 25 to 200 mm (1.000 to 8.000 in); bellows to 95 mm (3.750 in)

FEATURES & BENEFITS

  • Lower total cost of ownership from advanced seal design features that enable superior reliability
  • Broad application flexibility assured by comprehensive range of pre-engineered configurations and materials; custom solutions also available
  • Reduced operating costs via standardization to ISC2 Series, which enables less inventory, greater flexibility, less downtime and longer seal life
  • Increased plant and personnel safety delivered by cartridge security and compliance with all major international standards
ISC2-PP

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These dual cartridge pusher seals from the versatile ISC2 Series bring superior reliability to ASME, ISO, JIS and API pumps used in chemical, power, water, oil and gas, and other industries.

specifications

Press. to: 20.6 bar (300 psi)
Temp: -40°C to 204°C (-40°F to 400°F)
Speeds to: 23 m/s (75 fps)
Sizes: 25 to 200 mm (1.000 to 8.000 in)

FEATURES & BENEFITS

  • Reliable operation resulting from advanced volute groove design and internal circulating devices that promote cool running
  • Longer service life via a stationary face support drive mechanism that reduces wear in applications with high vibration levels, and springs and pins outside the process for reduced corrosion and clogging
  • Application flexibility with double-balanced seal face geometry, allowing both pressurized and unpressurized operation; ISC2-682PP provides full API 682 compliance
Series 80/CPM

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The Series 80 seal is one of Flowserve’s Heritage products that has a proven track record of performance. Built with premium materials, this Stationary designed, Hydraulically balanced seal succeeds in the most challenging applications.

Flowserve spun off the more popular sizes of the Series 80 and formed the CPM seal which allows us to compete with today’s low cost seal manufacturers. The CPM line of seals are used for competitor change outs in general service applications. Compared to other light duty seals, the CPM seal weights 30% more due to the heavy duty gland design. The flush port is also larger than most light duty seals making the CPM seal a better all-around choice.

SPECIFICATIONS

Press. to vacuum to 400 psig (27 bar)
Temp: -40 to 400 F (-40 to 204 C)
Speeds to: 100 ft/min (30m/s)
Sizes: 3/4″ to 3.750″

FEATURES & BENEFITS

  • Robust rotary face design is flexibly mounted, enhancing the ability to survive shock and face distortion typically found in clamped seal face designs.
  • Springs located outside the process fluid deter chemical stress corrosion and spring clogging by dirty process fluids.
  • Hydraulically balanced seal design reduces friction, heat and wear with lower loading forces while maintaining a lubrication film between the mating faces.
  • Floating stationary to accommodate out-of-square pump misalignment.

PUSHER SEALS (SPRINGS)

QB Seal

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QB Series balanced pusher seals are ideal for medium-duty applications in power and industrial applications.

SPECIFICATIONS

Pressure: to: 51.7 bar (750 psi)
Temperature: -40°C to 204°C (-40°F to 400°F)
Speeds to: 23 m/s (75 fps)
Shaft Sizes: 12.7 to 139.7 mm (0.500 to 5.500 in)

FEATURES & BENEFITS

  • Greater reliability and installation ease assured by rugged components, heavy-duty seal faces and cartridge seal configuration
  • Combat dirty services with the clog-resistant large cross-section, single coil spring in the QBS seal
  • Handle low lubricity hot water without the need for auxiliary cooling systems with the QBU seal
  • Choice of throttle bushing design: fixed, floating or segmented for safe equipment operation
D Seal

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D Series single spring, balanced pusher seals have a high-circulation integral pumping ring to ensure proper cooling. Ideal for high-temperature boiler feed water and hot hydrocarbon services.

SPECIFICATIONS

Pressure: to: 103.4 bar (1500 psi)
Temperature: -73°C to 343°C (-100°F to 650°F)
Speeds to: 23 m/s (75 fps)
Shaft Sizes: 13.4 to 137 mm (0.525 to 5.400 in)

FEATURES & BENEFITS

  • Cost-effective operation ensured by integrated pumping ring that eliminates the expense of cool injection systems
  • Greater reliability due to the rotating face that remains flat under all conditions for very low leakage
  • Consistent seal face contact provided by robust U-cup seal and spring holder
  • Superior high-temperature performance enabled by large, low spring rate single coil spring that tolerates axial setting variations
RO Seals

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This single, unbalanced, multi-spring component seal is usable as an inside or outside mounted seal. Suitable for abrasive, corrosive and viscous fluids in chemical services.

specifications

Pressure: to: 20.7 bar (300 psi)
Temperature: -40°C to 260°C (-40°F to 500°F)
Speeds to: 23 m/s (75 fps)
Shaft Sizes: 9.5 to 115 mm (0.375 to 4.500 in)

FEATURES & BENEFITS

  • Increased durability from robust rotating spring compression unit that helps to keep solids away from the seal faces and removes seal-generated heat
  • Improved reliability with rotating seal ring that is independently centered on the shaft and has multiple springs and drive pins that evenly distribute the load
  • Broad application flexibility enabled by completely interchangeable shaft packing materials, dimensionally interchangeable insert mounting, and compression unit availability in any machinable metallurgy
UHTW and DHTW

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These high-speed, high-pressure balanced pusher seals are custom-engineered for high-energy applications such as boiler-feed process barrel pumps.

specifications

Press. to: 207 bar (3000 psi)
Temp: -40°C to 371°C (-40°F to 700°F)
Speeds to: 76 m/s (250 fps)
Sizes: 25.4 to 228.6 mm (1.000 to 9.000 in)

FEATURES & BENEFITS

  • Unmatched performance and extended seal life derived from FEA-designed seal faces that boast zero net deflection from thermal, hydraulic, and dynamic forces
  • Superior high temperature, slow roll, and hot standby operation enabled by high performance circulating features that deliver optimum cooling at all operating speeds
  • Reliable operation in high speed services achieved via precisely controlled seal face balance ratio and robust drive engagement
  • Extended equipment uptime with available secondary containment options
CRO Seal

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The CRO is an economical, single-coil spring, friction drive component seal for use in pumps with packing box seal chambers. Available in single or dual arrangements.

SPECIFICATIONS

Press. to: 20.7 bar (300 psi)
Temp: -40°C to 260°C (-40°F to 500°F)
Speeds to: 23 m/s (75 fps)
Sizes: 9.5 to 115 mm (0.375 to 4.500 in)

FEATURES & BENEFITS

  • Longer service life derived from rotating seal ring that self-centers around the shaft and withstands the harsh demands of cyclic operation or continuous duty
  • Increased durability from robust single-coil spring that resists clogging and chemical attack
  • Simplified installation and improved corrosion resistance due to a design with a minimum number of seal components with heavy cross-sections
RA and RA-C

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With its composite rotor, the RA single outside-mounted component seal is a cost-effective solution for highly corrosive chemical services. Suitable for metallic and nonmetallic equipment, such as plastic, glass and lined designs.

SPECIFICATIONS

Press. to: 27.6 bar (400 psi)
Temp: -40°C to 177°C (-40°F to 350°F)
Speeds to: 23 m/s (75 fps)
Sizes: 13 to 127 mm (0.500 to 5.000 in)

FEATURES & BENEFITS

  • Installation ease with design that attaches to the outside of the seal chamber
  • Corrosive application performance and flexibility provided by seal faces and elastomers in diverse materials, plus non-wetted drive collar, springs and drive pins on the RA-C configuration to avoid the need for expensive alloys
  • Greater reliability assured by flexible rotor design, hydraulically balanced to provide proper face loading
  • Better process control via double O-ring mounted stator that prevents distortion

METAL BELLOWS SEALS

ISC2-BX

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Single cartridge metal bellows seals from the versatile ISC2 Series, the ISC2-BX and ISC2-XB are ideal for a wide range of chemical and industrial applications. ISC2-682 versions provide full API 682 compliance.

specifications

Press. to: 13.8 bar (200 psi)
Temp: -40°C to 204°C (-40°F to 400°F
Speeds to: 23 m/s (75 fps)
Sizes: 25 to 95 mm (1.000 to 3.750 in)

FEATURES & BENEFITS

  • Outstanding corrosion resistance with edge-welded Alloy C-276 bellows
  • Reduced hang-up due to self-cleaning rotating bellows design that maintains excellent seal face loading
  • Improved tolerance to dry running events with exclusive thermal management technology
  • Broad application flexibility assured by comprehensive range of pre-engineered configurations with standard flush (BX), Plan 23 cooling (XB) and API 682 compliance
  • Increased safety via throttle bushing with standard quench and drain
BX Series

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BX Series balanced rotating metal bellows seals provide exceptional reliability in corrosive and non-corrosive fluids, especially those that crystallize. Fully compliant with API 682 Type B, Arrangements 1, 2 and 3.

SPECIFICATIONS

Press. to: 27.6 bar (400 psi
Temp: -40°C to 204°C (-40°F to 400°F)
Speeds to: 23 m/s (75 fps)
Sizes: 12.3 to 127 mm (0.483 to 5.000 in)

FEATURES & BENEFITS

  • Longer service life with 0.20 mm (0.008 in) thick standard welded metal bellows for resistance to corrosion, shaft vibration and centrifugal forces
  • Optimal performance ensured by three standard seal face balances; the BXQ seal is high balanced for flashing hydrocarbon applications
  • Increased maintenance intervals due to self-cleaning rotating bellows that replace springs and dynamic elastomers
  • Performance benefits of metal bellows in dual pressurized Arrangement 3 seals with the BXB seal’s unique ID pressurized seal face balance
BXRH

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Built for temperatures beyond the limits of elastomers, the BXRH balanced stationary metal bellows seal offers reliable sealing at high speeds. Meets all API 682 Type C requirements in Arrangements 1, 2 and 3.

SPECIFICATIONS

Press. to: 20.7 bar (300 psi)
Temp: -73°C to 427°C (-100°F to 800°F)
Speeds to: 46 m/s (150 fps)
Sizes: 21.8 to 127 mm (0.857 in to 5.000 in)

FEATURES & BENEFITS

  • Optimal performance resulting from flexible graphite gasketing in lieu of elastomers to improve temperature and chemical compatibility
  • Reliability due to extra-long Alloy 718 bellows that offer superior corrosion resistance, allow more axial travel, and provide consistent spring loading
  • Application flexibility arising from single and dual seal configurations as well as pressurized and unpressurized arrangements
  • Reduced clogging due to absence of springs and dynamic elastomers, plus standard anti-coke device

MIXER SEALS

M Series

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M Series vertical shaft mixer seals easily adapt to changing production requirements. They are designed for use with mixers, agitators, filters and dryers as well as steel- or glass-lined vessels.

specifications

Press: vacuum to 35 bar (500 psi)
Temp: to 200°C (390°F)
Speed: to 10 m/s (33 fps)
Sizes: 40 to 220 mm (1.575 to 9.000 in)

FEATURES & BENEFITS

  • Unprecedented application flexibility provided by cartridge canister design that enables the seal faces to be changed out to run wet (MW), dry contacting (MD) or dry non-contacting gas barrier technology (ML)
  • True component standardization with reduced inventory carrying costs owing to a high degree of parts interchangeability across the product line
  • Optional materials compliant with FDA CFR 21, USP Class VI, ADI Free Components and similar specifications
  • Specialized solutions customized up to 480 mm (18.900 in) shaft size (MWC-200)
VRA

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The VRA is an outside-mounted, dry-running single pusher seal designed to operate on top-entry agitators and mixers. Self-lubricating carbon or filled PTFE seal faces run completely dry without cooling.

SPECIFICATIONS

Press: vacuum to 13.8 bar (200 psi)
Temp: to 121°C (250°F)
Speed: to 350 rpm
Sizes: 25 to 178 mm (1.000 to 7.000 in)

FEATURES & BENEFITS

  • Cost savings provided by contacting dry-running design and two-piece collar, which respectively eliminate the need for a buffer fluid system and expensive alloys in non-wetted areas
  • Optimized for high run-out requirements — up to 3.81 mm (0.150 in) FIM
  • High reliability provided by flexible rotor design that compensates for misalignment and double O-ring mounted stator that prevents distortion
  • Reduced downtime facilitated by optional sanitary gland that allows steam cleaning and sterilizing of the seal’s interior while mounted on the equipment
MSS Mixer Split Seal

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The MSS is for tough mixer and vessel applications where stuffing box face, bore and OD run-out are extreme. Typically used on older equipment or where compression packing had been used.

SPECIFICATIONS

Press: vacuum to 7 bar (100 psi)
Temp: to 150°C (300°F)
Speed: to 1740 rpm
Sizes: 25 to 305 mm (1.000 to 12.000 in)

FEATURES & BENEFITS

  • Easy installation, inspection and maintenance facilitated by outside seal arrangement and split design
  • Fits in tight spaces with no equipment tear down; can be installed in cramped stuffing box areas where the bearing housing, gear box or coupling create obstructions
  • Reliable operation owing to self-lubricating faces and design that dissipates heat from seal faces, which allows it to run dry or wet
  • Product purity ensured by design that compensates for pressure reversals
BRO Seal

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The BRO Seal was designed for large diameter mixer shafts. The unique design allows a large cross-section of carbon to be used as a seal ring, so that the rotating carbon face can be assembled in the rotary unit by the seal manufacturer.

specifications

Press. up to 400 psig (27 bar)
Temp: up to 250 F (121 C)
Speeds to: 3500 fpm (18m/s)

FEATURES & BENEFITS

  • Flowserve designed the BRO seal to handle shaft movement found in larger shaft sized equipment.
  • Maximum flexibility of the rotating seal is achieved because the carbon seal ring can float within the shroud.
  • Balanced version is called BPO
  • Seal is designed to fit most OEM housings.
ISC2-MW

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The ISC2-MW is a dual-arrangement standard cartridge pusher seal engineered for reliable, cost-effective operation in mixer service.

specifications

Press: to 6.9 bar (100 psi)
Temp: -40°C to 204°C (-40°F to 400°F)
Speed: to 1.1 m/s (3.5 fps)
Sizes: 25 to 200 mm (1.000 to 8.000 in)

FEATURES & BENEFITS

  • Reduced installation and maintenance costs assured by economical cartridge seal design for top-entry installation
  • Increased uptime resulting from volute groove, which significantly increases barrier fluid flow to promote cool running, even at mixer speeds
  • Reliable operation ensured by ISC2 thermal management technology that allows the seal to run cooler and tolerate dry-running events

GAS BARRIER SEALS

GF-200

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This dual pressurized non-contacting, gas barrier pusher seal is used in applications where zero emissions of hazardous pumped products can be tolerated

specifications

Press. to: 34.5 bar (500 psi)
Temp: -40°C to 260°C (-40°F to 500°F)
Speeds: 1.3 to 25 m/s (4 to 82 fps)
Sizes: 25.4 to 152 mm (1.000 to 6.000 in)

FEATURES & BENEFITS

  • Environmental regulatory compliance assured by inert gas barrier that operates with zero process emissions
  • Greater reliability enabled by spring energized O-ring technology to maintain proper seal face tracking
  • Longer service life from silicon carbide seal faces using APG precision face topography, which creates a stiff, thin gas film that prevents wear
  • Economical performance via non-contacting seal faces that require very low power consumption during startup and operation
GX-200

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GX-200 dual metal bellows seals utilize APG non-contacting seal face technology for outstanding performance in a variety of applications. Fits standard or small bore seal chambers without modifications.

SPECIFICATIONS

Press. to: 13.8 bar (200 psi)
Temp: -40°C to 260°C (-40°F to 500°F)
Speeds: 2.5 to 35 m/s (8 to 115 fps)
Sizes: 25.4 to 76.2 mm (1.000 to 3.000 in)

FEATURES & BENEFITS

  • Environmental regulatory compliance assured by inert gas barrier that operates with zero process emissions
  • Long-term reliability provided by high alloy metal bellows that resist contamination and hang-up while providing pressure reversal product containment during upset events
  • Lower operation and maintenance costs provided by unique design that eliminates the costs of maintaining a liquid barrier system and the risks of barrier fluid contamination
  • Economical performance enabled by energy-efficient design that delivers the industry’s lowest power consumption for conventional pumps
GSL

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GSL non-contacting gas seals are designed for dry running vapor containment and full pressure wet backup sealing in light hydrocarbon, crude oil and hazardous services.

SPECIFICATIONS

Press. to: 41.4 bar (600 psi)
Temp: -40°C to 204°C (-40°F to 400°F)
Speeds: 1.5 to 30.5 m/s (5 to 100 fps)
Sizes: 20.6 to 152 mm (0.813 to 6.000 in)

FEATURES & BENEFITS

  • Fully compliant with API 682 Type A, Arrangement 2 containment seal requirements
  • Greater reliability and service life assured by silicon carbide seal face with a bidirectional wave pattern that provides the lift necessary for non-contacting operation
  • Improved plant and personnel safety from backup sealing capability to 600 psi (41.4 bar), allowing safe shutdown if primary seal fails
  • Faster, trouble-free startup via cartridge assembly that simplifies installation
  • Meets environmental emission limits with available nitrogen sweep auxiliary system

COMPRESSOR SEALS 

Gaspac T, L, D and S

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The Gaspac is a proven platform of dry gas seals for turbomachinery equipment and features either bi-directional T-Groove or Advanced Pattern Groove (APG) non-contacting seal face technologies.

specifications

Press. to: 650 bar (9427 psi)
Temp: to 230°C (450°F)
Speeds to: 250 m/s (820 fps)
Sizes: to 360 mm (14.125 in)

FEATURES & BENEFITS

  • Environmental regulatory compliance and energy savings assured by controlled gas flow rates over the widest operating conditions
  • Increased reliability with precision face topography that offers high film stiffness and damping, and maintains a stable gas film under slow roll and high speeds
  • Application versatility from a wide range of single and dual configurations with process barrier and oil exclusion features
  • Increased uptime via innovative solutions for secondary sealing, reverse rotation, reverse pressurization and component centering
Circpac CB, LO and HP

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This high-performance segmented circumferential gas seal series is engineered for gas compressors as part of a Gaspac assembly (Circpac CB and LO) or as a stand-alone cartridge (Circpac HP).

SPECIFICATIONS

Press. to: 10 bar (150 psi)
Temp: -40°C to 180°C (-40°F to 350°F)
Speeds to: 140 m/s (460 fps)
Sizes: to 280 mm (11.000 in)

FEATURES & BENEFITS

  • Consistent performance from carbon ring construction designed for non-contacting operation that exceeds the pressure capability of typical circumferential seals
  • Increased reliability via pressure-balanced ring design and hydrodynamic surface features, resulting in low gas consumption and long life
  • Enhanced application versatility enabled by multiple ring combinations with optimized purge and vent options
  • Lower cost of ownership with fewer spare parts provided by bi-directional capability for reverse rotation

SLURRY SEALS

SLC Series

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SLC seals are heavy-duty, single pusher cartridge seals built for the harshest slurry pump services found in mining, mineral and ore processing, and flue gas desulfurization. Suitable for solids to 60% by weight.

specifications

Press. to: 20.6 bar (300 psi)
Temp: -18°C to 110°C (10°F to 230°F)
Speeds to: 15 m/s (50 fps)
Sizes: 32 to 220 mm (1.250 to 8.661 in)

FEATURES & BENEFITS

  • Lower operating costs ensured by unique non-clogging, encapsulated cone spring, which increases reliability and enables flushless operation
  • Maximized equipment uptime provided by abrasion-resistant metal components and silicon carbide faces that extend seal life beyond that of slurry pump components
  • Economical performance via clean, open design, which operates without flush water to reduce product dilution and eliminate flush water costs
  • Ease of installation resulting from cartridge design that requires no special tools or bearing housing adjustments
SLM Series

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These balanced single (SLM-6000) or dual (SLM-6200) cartridge pusher seals have a flexible stator and operate without outside flush liquid to eliminate product dilution, increase plant efficiency and reduce costs.

SPECIFICATIONS

Press. to: 17.2 bar (250 psi)
Temp: -40°C to 149°C (-40°F to 300°F)
Speeds to: 23 m/s (75 fps)
Sizes: 50 to 235 mm (2.000 to 9.250 in)

FEATURES & BENEFITS

  • Increased reliability and consistent “no visible leakage” operation due to line-on-line, hydraulically balanced faces
  • Extended seal life enabled by centroid-loaded monoblock rotor that helps to maintain zero net deflection, reducing leakage and wear
  • Reduced maintenance costs provided by large cross-section stator O-ring, which allows maximum shaft movement while reducing the damaging effects of hang-up
  • Dependable performance provided by single seals handling solids to 20%, dual seals to 60% solids, and quench options providing complete application flexibility
RIS

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The RIS rubber-energized, component slurry seal features a unique non-clogging design that does not utilize springs or bellows. Handles solids to 50% by weight.

SPECIFICATIONS

Press. to: 10.3 bar (150 psi)
Temp: -4°C to 110°C (25°F to 230°F)
Speeds to: 11 m/s (36 fps)
Sizes: 32 to 235 mm (1.250 to 9.250 in)

FEATURES & BENEFITS

  • Ease of installation provided by innovative adaptive components that allow the seal to be installed from the wet end and adjusted externally
  • Longer MTBF from non-clogging elastomer spring design that has no dynamic O-ring to hang up
  • Reliable operation ensured by the rubber-energized stationary seal face that holds the seal faces together and absorbs relative shaft movement
  • Reduced operating costs and improved control made possible by flushless operation, which is especially beneficial in flue gas desulphurization

SPECIAL DUTY SEALS

PSS 4

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The PSS 4 semi-cartridge split seal is ideal for pump and mixer applications. With only two major components, it makes installation quick and easy without requiring equipment teardown.

specifications

Press.: Vacuum to 30 bar (450 psi)
Temp: -18°C to 121°C (0°F to 250°F)
Speeds: to 19.3 m/s (3800 fpm)
Sizes: 38 to 152 mm (1.500 to 6.000 in); contact Flowserve for larger sizes

FEATURES & BENEFITS

  • Exclusive 3D Key technology assures optimum face alignment in both axial and radial direction, reducing leakage and installation time
  • Unique setting tabs eliminate all seal positioning, measuring and marking, assuring installation success
  • Easily handles mixer equipment runout up to 1.5 mm (0.060 in) TIR radial shaft movement
  • Fully split design installs easily around the shaft, outside the seal chamber, eliminating the need to dismantle the equipment
BulkTite

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Designed for rotating equipment handling powder and bulk solids, BulkTite seals improve sealing performance with non-wearing, low-maintenance solutions for screw conveyors, rotary airlocks, mixers, de-lumpers and more.

SPECIFICATIONS

Press. to: Vacuum to 3.3 bar (50 psi)
Temp: 0°C to 121°C (32°F to 250°F)
Speeds to: 16.6 m/s (54 fps)
Sizes: 12 to 152 mm (0.500 to 6.000 in)

FEATURES & BENEFITS

  • Easy cartridge seal installation, minimizing downtime
  • Superior seal life with 3.2 mm (0.125 in) radial shaft movement, up to 2° angular misalignment and axial shaft movement
  • Minimal gas consumption for reduced operating costs
Pac-Seals

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The Pac-Seal family of component seals is available in numerous designs and styles, including diaphragm elastomer bellows to fit a wide range of standard industrial and custom equipment applications.

SPECIFICATIONS

Press. to: 27 bar (400 psi)
Temp: -40°C to 204°C (-40°F to 400°F)
Speeds to: 25 m/s (83 fps)
Sizes: 15.8 to 150 mm (0.625 to 6.000 in)

FEATURES & BENEFITS

  • Low cost of ownership enabled by readily available components with multiple material options
  • Excellent reliability ensured by standardized features, including crimped-head rotary units and hex-torque drive
  • Easy installation with no set screws or setting clips
  • Custom designs with flexible inventory, logistics and packaging solutions for high-volume OEM orders ensure the right supply requirements are fully achieved
PL Series

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PL Series seals are pre-engineered single (PL-100) and dual (PL-200) cartridge seals with non-metallic wetted components. They are a cost-effective alternative to high-alloy seals in ASME and ISO pumps in corrosive services.

specifications

Press.: Vacuum to 10.3 bar (150 psi)
Temp: -18°C to 150°C (0°F to 300°F)
Speeds: to 23 m/s (60 fps)
Sizes: 35 to 53 mm (1.375 to 2.750 in)

FEATURES & BENEFITS

  • Greater reliability from special carbon fiber reinforced PTFE construction that provides excellent corrosion resistance and mechanical properties to maintain seal integrity
  • Longer service life and MTBF ensured by springs and pins that are isolated from the product to prevent clogging and chemical attack
  • Reduced maintenance costs with replaceable carbon fiber PTFE liner that protects the 316 SS gland
  • Affordable alternative to high-alloy single or dual metal seals
LS-300

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This cartridge-style, multiple dynamic lip seal is designed for highly viscous applications in positive displacement and progressive cavity pumps.

SPECIFICATIONS

Press. to: 10.3 bar (150 psi)
Temp: -53°C to 149°C (-65°F to 300°F)
Speeds to: 3.5 m/s (12 fps)
Sizes: 19.1 to 76.2 mm (0.750 to 3.000 in)

FEATURES & BENEFITS

  • Greater process accuracy from seal designed to run dry, without the need for an external flush or lubricating barrier fluid
  • Reliable operation ensured by triple-lip design effectively seals process from atmosphere at viscosities up to 12 000 cP
  • Installation ease assured by preset cartridge
  • Application flexibility enabled by design that is interchangeable between standard and universal bracket pumps with just a gasket change
  • Ease of field maintenance made possible by optional repair kit
Circpac MD

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The Circpac MD is a segmented circumferential seal designed for fans, blowers, dryers, turbines, centrifuges and other rotating equipment.

SPECIFICATIONS

Press.: Vacuum to 6.9 bar (100 psi)
Temp: -40°C to 593°C (-40°F to 1100°F)
Speeds to: 46 m/s (150 fps)
Sizes: 25.4 to 457 mm (1.000 to 18.000 in)

FEATURES & BENEFITS

  • Superior performance with lower gas consumption ensured by hydraulically balanced ring design that consistently outperforms packing, bushings, labyrinths and felt seals
  • Installation ease with radially split seal housing that mounts outside the seal chamber without modification or dismantling
  • Increased durability provided by robust carbon rings with foul-resistant joints and large bearing pads that maintain integrity during off-design operation
  • Application flexibility with multiple ring configurations that can be staged for reduced leakage, pressurized for zero process emissions, or added for emergency backup

Bearing Gard


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Buffer/Barrier Fluid Reservoirs

Flowserve reservoirs are available for dual pressurized (Plan 53A) and dual non-pressurized (Plan 52) mechanical seals. Options are available for utilizing water or oil as barrier fluid.

specifications

Press: to 82.3 bar (1200 psi)
Temp: to 148°C (300°F)
Volume: to 20 L (5 gal)

FEATURES & BENEFITS

  • Extended seal life made possible by reliable supply of clean buffer/barrier fluid for cooling and lubrication
  • Reduced maintenance and operating costs with optimal buffer/barrier fluid management
  • Increased reservoir life with corrosion-resistant 304, 316 or 316L construction
  • Compliance with API 682, ASME Section VIII, ASME B31.3, PED and/or TRD as required
  • Application flexibility provided by configurations and instrumentation that are easily adapted to local standards as well as application and customer requirements

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Water Seal Cooler

Water seal coolers lower the temperature of process/barrier fluid to improve seal reliability. Designed and manufactured in accordance with ASME Section VIII, Div 1 and PED.

specifications

Press: to 183 bar (2650 psi)
to 95°C (200°F)

FEATURES & BENEFITS

  • Easy installation in limited spaces due to compact design with integral mounting bracket and convenient pipe porting
  • Simplified maintenance with quick access to coil, only one bolt fastening the shell, and no disturbance to piping during shell removal
  • High-temperature fittings included as standard

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Seal Gard

The Seal Gard manages seal water flow rates for single and dual seals to improve the mean time between planned maintenance of your rotary equipment by improving the environment in the seal area.

specifications

Flows to: 13 lpm (3.5 gpm)
Press. to: 25 bar (363 psi)
Temp: 0°C to 100°C (32°F to 212°F)

FEATURES & BENEFITS

  • Lower operating cost from dependable flow control that saves water costs by reducing seal water usage
  • Ease of operation assured by clear-view acrylic flow meter with vertical flow tube that resists fouling and vibration-resistant pressure gauge
  • Reduced downtime enabled by standard check valve that prevents backup of product into the seal water line in the event of pressure reversal

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DuraClear

DuraClear high-performance synthetic lubricants are specially formulated for dual mechanical seal barrier or buffer fluids to increase mean time between planned maintenance and reduce energy consumption.

specifications

NSF H-1 Food Grade
ISO 5, 7 and 32 viscosities available

FEATURES & BENEFITS

  • Process fluid compatibility assured by synthetic oils and oil blends readily available with food grade compliance; DuraClear Crystal 7 is chemically inert and non-reactive for the most aggressive services
  • Extended seal life with reduced friction and wear, oxidation resistance, temperature stability and low volatility
  • Increased drain and replenish intervals due to longer fluid life
  • Increased uptime with formulations for bearing frame oil, compressor oil, gear oil, hydraulic oil, turbine oil, air tool lubricant and grease applications

SLD Lubricator


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Magnetic Seperator

A magnetic separator installed in closed loop fluid systems removes iron oxide particles, protects equipment from contamination damage and increases system reliability.

specifications

Flows: to 15 lpm (4 gpm)
Press. to: 103.4 bar (1500 psi)
Temp: to 204°C (400°F)
Sizes: 12.7 to 19 mm (0.500 to 0.750 in)

FEATURES & BENEFITS

  • Minimal installation costs by inline insertion into Plan 23 piping plans or similar closed loop control lines
  • Improved mechanical seal reliability enabled by strong magnetic field that effectively captures iron oxide particles to prevent seal face abrasion, hang-up or clogging
  • Long-term reliability provided by large surface area of magnet capable of storing iron oxide particles through extended maintenance cycles

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Cyclone Seperator

Cyclone separators are designed to efficiently remove sand, pipe scale and other abrasive particles from Plan 31 injection flow to mechanical seals.

specifications

Flows to: 57 lpm (0.9 to 15 gpm)
Press. to: 138 bar (2000 psi)
Temp: to 455°C (850°F)
Sizes: 12.7 to 19 mm (0.500 to 0.750 in)

FEATURES & BENEFITS

  • Increased seal reliability ensured by centrifugal effects generated by differential pressure across the cyclone that carries away abrasive particles
  • Improved equipment reliability, with up to 99% separation efficiency
  • Offered in several sizes to fit the application based on flow rate and pressure

Diamond Face Technology

Mechanical Seal Piping Plans

Seal Failure Analysis Guide

Flowserve PSS4 Split Seal Installation Video

Flowserve ISC2 Standard Cartridge Seal