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    65 Products

    Heavy Duty Mechanical Pump Shaft Seals

    Image of Product. Front orientation. Exploded view. Contains Annotated. Shaft Seals. Heavy Duty Mechanical Pump Shaft Seals.
    Multiple internal springs ensure these seals keep the sealing surfaces in contact in demanding applications, such as agricultural, chemical, and mining pumps. Seals come furnished as two pieces—the seal and the seat. The seal is comprised of the case, springs, diaphragm, and washer, and the seat is comprised of the seat and the gasket. Seal Width represents the working height, which is the compressed length when installed.
    Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
    Cannot Be Sold Outside North America—Products cannot be sold outside North America due to restrictions.
    Seal
    Seat
    Material
    For Shaft
    Dia.
    Mfr./Brand Equiv.
    ID
    OD
    Wd.
    ID
    OD
    Wd.
    Washer
    Seat
    Max. Pressure,
    psi
    Cannot Be Sold To
    Each
    316 Stainless Steel Case and 316 Stainless Steel Spring with Viton® Fluoroelastomer Diaphragm and Viton® Fluoroelastomer Gasket
    5/8"John Crane Type 8T
    Pac-Seal Type 8T
    0.625"1.062"0.937"0.661"1.250"0.406"CarbonCeramic300Outside North America1563N110000000
    3/4"John Crane Type 8T
    Pac-Seal Type 8T
    0.750"1.187"0.937"0.781"1.375"0.406"CarbonCeramic300Outside North America1563N12000000
    1"John Crane Type 8T
    Pac-Seal Type 8T
    1.000"1.437"1.000"1.064"1.625"0.437"CarbonCeramic300Outside North America1563N13000000
    1 1/4"John Crane Type 8T
    Pac-Seal Type 8T
    1.250"1.687"1.000"1.281"1.875"0.437"CarbonCeramic300Outside North America1563N14000000
    1 1/2"John Crane Type 8T
    Pac-Seal Type 8T
    1.500"1.937"1.125"1.546"2.125"0.437"CarbonSilicon Carbide300Outside North America1563N1600000000
     

    Water-Resistant Soft Neoprene Cord Stock

    Image of Product. Front orientation. Cord Stock. Water-Resistant Soft Neoprene Cord Stock.
    Softer and easier to compress than standard neoprene cord stock, this cord stock forms a better seal on uneven surfaces. However, it’s less wear resistant. It resists moisture, salt water, and UV rays, so it's a good choice for marine environments. Since it has better chemical resistance than EPDM cord stock, it’s also used to seal tank hatches and gate valves.
    Per Ft.
    Wd.
    Wd. Tolerance Range
    Hardness
    ARPM
    Tolerance
    Specs.
    Met
    Temp. Range,
    ° F
    Color
    Choose a Length, ft.
    1-99
    100-Up
    0.070"-0.014" to 0.014"Durometer 50A (Soft)E2 PrecisionASTM D2000-30 to 212Black3, 10, 20, 50, 1001430K510000000000
    0.093"-0.014" to 0.014"Durometer 50A (Soft)E2 PrecisionASTM D2000-30 to 212Black3, 10, 20, 50, 1001430K7400000000
    0.103"-0.016" to 0.016"Durometer 50A (Soft)E2 PrecisionASTM D2000-30 to 212Black3, 10, 20, 50, 1001430K5300000000
    0.125"-0.016" to 0.016"Durometer 50A (Soft)E2 PrecisionASTM D2000-30 to 212Black3, 10, 20, 50, 1001430K7500000000
    0.139"-0.016" to 0.016"Durometer 50A (Soft)E2 PrecisionASTM D2000-30 to 212Black3, 10, 20, 50, 1001430K5500000000
    0.187"-0.020" to 0.020"Durometer 50A (Soft)E2 PrecisionASTM D2000-30 to 212Black3, 10, 20, 50, 1001430K7600000000
    0.210"-0.020" to 0.020"Durometer 50A (Soft)E2 PrecisionASTM D2000-30 to 212Black3, 10, 20, 50, 1001430K5700000000
    0.250"-0.020" to 0.020"Durometer 50A (Soft)E2 PrecisionASTM D2000-30 to 212Black3, 10, 20, 50, 1001430K7700000000
    0.275"-0.027" to 0.027"Durometer 50A (Soft)E2 PrecisionASTM D2000-30 to 212Black3, 10, 20, 50, 1001430K5900000000
    0.313"-0.027" to 0.027"Durometer 50A (Soft)E2 PrecisionASTM D2000-30 to 212Black3, 10, 20, 50, 1001430K6100000000
    0.375"-0.027" to 0.027"Durometer 50A (Soft)E2 PrecisionASTM D2000-30 to 212Black3, 10, 20, 50, 1001430K6300000000
    0.437"-0.031" to 0.031"Durometer 50A (Soft)E2 PrecisionASTM D2000-30 to 212Black3, 10, 20, 50, 1001430K6500000000
    0.500"-0.031" to 0.031"Durometer 50A (Soft)E2 PrecisionASTM D2000-30 to 212Black3, 10, 20, 50, 1001430K6700000000
    0.625"-0.031" to 0.031"Durometer 50A (Soft)E2 PrecisionASTM D2000-30 to 212Black3, 10, 20, 50, 1001430K6900000000
    0.750"-0.039" to 0.039"Durometer 50A (Soft)E2 PrecisionASTM D2000-30 to 212Black3, 10, 20, 50, 1001430K7100000000
    1.000"-0.051" to 0.051"Durometer 50A (Soft)E2 PrecisionASTM D2000-30 to 212Black3, 10, 20, 50, 1001430K73000000000
    2.000 mm-0.350 mm to 0.350 mmDurometer 50A (Soft)E2 PrecisionASTM D2000-30 to 212Black3, 10, 20, 50, 1001430K7800000000
    3.000 mm-0.400 mm to 0.400 mmDurometer 50A (Soft)E2 PrecisionASTM D2000-30 to 212Black3, 10, 20, 50, 1001430K7900000000
    4.000 mm-0.400 mm to 0.400 mmDurometer 50A (Soft)E2 PrecisionASTM D2000-30 to 212Black3, 10, 20, 50, 1001430K8100000000
    5.000 mm-0.500 mm to 0.500 mmDurometer 50A (Soft)E2 PrecisionASTM D2000-30 to 212Black3, 10, 20, 50, 1001430K8200000000

    Mechanical Pump Shaft Seals with Extended Spring

    Image of Product. Seal with Conical Spring. Front orientation. Exploded view. Contains Annotated. Shaft Seals. Mechanical Pump Shaft Seals with Extended Spring, Conical Spring.

    Seal with Conical

    Spring

    Image of Product. Seal with Retainer and Straight Spring. Front orientation. Exploded view. Contains Annotated. Shaft Seals. Mechanical Pump Shaft Seals with Extended Spring, Straight Spring, Spring Retainer.

    Seal with Retainer

    and Straight Spring

    For use in waste water, boiler feed, and compressor pumps, these seals have an extra-long spring that accommodates variations in seal cavity length. They come furnished as two pieces—the seal and the seat. The seal is comprised of the case, spring, diaphragm, and washer, which come locked together as one piece. Seal Width represents the working height, which is the compressed length when installed. The seat is comprised of the seat and the gasket.
    Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
    Viton® Fluoroelastomer Diaphragm—Viton® fluoroelastomer diaphragms resist a wider range of chemicals than Buna-N.
    Viton® Fluoroelastomer Gasket—Viton® fluoroelastomer gaskets resist a wider range of chemicals than Buna-N.
    Carbon Washer—Carbon washers are for use with clean liquids.
    Silicon Carbide Washer—Silicon carbide washers have a hard surface that resists scratching, so they can be used with liquids that contain abrasives.
    Cannot Be Sold Outside North America—Products cannot be sold outside North America due to restrictions.
    Seal
    Seat
    Material
    For Shaft
    Dia.
    Mfr. Equiv.
    No.
    Mfr./Brand Equiv.
    ID
    OD
    Wd.
    ID
    OD
    Wd.
    Washer
    Seat
    Spring
    Shape
    Includes
    Max. Pressure,
    psi
    Cannot Be Sold To
    Each
    304 Stainless Steel Case and 304 Stainless Steel Spring with Viton® Fluoroelastomer Diaphragm and Viton® Fluoroelastomer Gasket
    1/2"168VJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    0.500"0.915"0.812"0.535"1.000"0.312"CarbonCeramicStraightSpring Retainer250Outside North America9281K66000000
    5/8"359VJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    0.625"1.180"0.875"0.671"1.250"0.406"CarbonCeramicStraightSpring Retainer250Outside North America9281K6900000
    5/8"359VSCJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    0.625"1.180"0.875"0.671"1.250"0.406"Silicon CarbideSilicon CarbideStraightSpring Retainer250Outside North America9281K28100000
    3/4"358V, 750VJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    0.750"1.302"0.875"0.780"1.375"0.406"CarbonCeramicStraightSpring Retainer250Outside North America9281K28300000
    3/4"877VJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    0.750"1.302"0.797"0.780"1.375"0.406"CarbonCeramicStraightSpring Retainer250Outside North America9281K7100000
    7/8"309VSCJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    0.875"1.422"0.937"0.921"1.500"0.406"Silicon CarbideSilicon CarbideStraightSpring Retainer250Outside North America9281K24300000
    7/8"703VJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    0.875"1.422"0.937"0.921"1.500"0.406"CarbonCeramicStraightSpring Retainer250Outside North America9281K7200000
    1"235VJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    1.000"1.552"1.000"1.031"1.625"0.437"CarbonCeramicStraightSpring Retainer250Outside North America9281K7300000
    1"235VSCJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    1.000"1.552"1.000"1.031"1.625"0.437"Silicon CarbideSilicon CarbideStraightSpring Retainer250Outside North America9281K24400000
    1"245VJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    1.000"1.700"1.000"1.031"1.625"0.437"CarbonCeramicCone150Outside North America9281K12700000
    1 1/8"356VJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    1.125"1.753"1.062"1.161"1.750"0.437"CarbonCeramicStraightSpring Retainer250Outside North America9281K7400000
    1 1/8"356VSCJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    1.125"1.753"1.062"1.156"1.750"0.437"Silicon CarbideSilicon CarbideStraightSpring Retainer250Outside North America9281K284000000
    1 1/4"185VJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    1.250"1.878"1.062"1.291"1.875"0.437"CarbonCeramicStraightSpring Retainer250Outside North America9281K34200000
    1 1/4"185VSCJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    1.250"1.878"1.062"1.291"1.875"0.437"Silicon CarbideSilicon CarbideStraightSpring Retainer250Outside North America9281K245000000
    1 3/8"177VJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    1.375"2.001"1.125"1.411"2.000"0.437"CarbonCeramicStraightSpring Retainer250Outside North America9281K7600000
    1 3/8"177VSCJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    1.375"2.001"1.125"1.415"2.000"0.437"Silicon CarbideSilicon CarbideStraightSpring Retainer250Outside North America9281K246000000
    1 1/2"758VJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    1.500"2.124"1.125"1.546"2.125"0.437"CarbonCeramicStraightSpring Retainer250Outside North America9281K7700000
    1 1/2"758VSCJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    1.500"2.124"1.125"1.546"2.125"0.437"Silicon CarbideSilicon CarbideStraightSpring Retainer250Outside North America9281K247000000
    1 1/2"11558VJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    1.500"2.320"1.093"1.546"2.125"0.437"CarbonCeramicCone250Outside North America9281K7800000
    1 5/8"238VJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    1.625"2.424"1.375"1.663"2.375"0.500"CarbonCeramicStraightSpring Retainer250Outside North America9281K7900000
    1 5/8"238VXFXJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    1.625"2.424"1.375"1.671"2.375"0.500"Silicon CarbideSilicon CarbideStraightSpring Retainer250Outside North America9281K248000000
    1 3/4"237VJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    1.750"2.446"1.375"1.796"2.500"0.500"CarbonCeramicStraightSpring Retainer250Outside North America9281K800000
    1 3/4"237VSCJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    1.750"2.446"1.375"1.796"2.500"0.500"Silicon CarbideSilicon CarbideStraightSpring Retainer250Outside North America9281K249000000
    1 7/8"340VJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    1.875"2.519"1.500"1.927"2.625"0.500"CarbonCeramicStraightSpring Retainer250Outside North America9281K81000000
    2"267VJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    2.000"2.724"1.500"2.055"2.750"0.500"CarbonCeramicStraightSpring Retainer250Outside North America9281K83000000
    12 mmJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    12.000 mm23.500 mm20.500 mm14.700 mm25.500 mm8.000 mmCarbonCeramicStraightSpring Retainer250Outside North America9281K34900000
    13 mmJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    13.000 mm23.500 mm20.500 mm14.700 mm25.500 mm8.000 mmCarbonCeramicStraightSpring Retainer250Outside North America9281K36800000
    15 mmJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    15.000 mm27.000 mm22.250 mm17.100 mm31.750 mm10.250 mmCarbonCeramicStraightSpring Retainer250Outside North America9281K38100000
    16 mmJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    16.000 mm27.000 mm22.250 mm17.100 mm31.750 mm10.250 mmCarbonCeramicStraightSpring Retainer250Outside North America9281K38200000
    17 mmJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    17.000 mm27.000 mm22.250 mm19.700 mm35.000 mm10.250 mmCarbonCeramicStraightSpring Retainer250Outside North America9281K39500000
    20 mmJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    20.000 mm33.400 mm23.750 mm23.900 mm38.000 mm10.250 mmCarbonCeramicStraightSpring Retainer250Outside North America9281K41400000
    22 mmJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    22.000 mm33.400 mm23.750 mm23.900 mm38.000 mm10.250 mmCarbonCeramicStraightSpring Retainer250Outside North America9281K41500000
    24 mmJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    24.000 mm39.200 mm25.500 mm26.500 mm41.250 mm11.000 mmCarbonCeramicStraightSpring Retainer250Outside North America9281K41600000
    28 mmJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    28.000 mm45.600 mm27.000 mm30.680 mm44.500 mm11.000 mmCarbonCeramicStraightSpring Retainer250Outside North America9281K43200000
    30 mmJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    30.000 mm47.400 mm27.000 mm34.100 mm47.750 mm11.000 mmCarbonCeramicStraightSpring Retainer250Outside North America9281K45400000
    32 mmJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    32.000 mm47.400 mm27.000 mm34.100 mm47.750 mm11.000 mmCarbonCeramicStraightSpring Retainer250Outside North America9281K4600000
    35 mmJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    35.000 mm52.000 mm28.500 mm37.100 mm50.750 mm11.000 mmCarbonCeramicStraightSpring Retainer250Outside North America9281K4900000
    40 mmJohn Crane Type 21
    Pac-Seal Type 21
    Pac-Seal Type 31
    Sealol Type 43 CE Short
    Sealol Type 43 CU Short
    40.000 mm59.200 mm35.000 mm43.360 mm60.250 mm12.750 mmCarbonCeramicStraightSpring Retainer250Outside North America9281K503000000
     

    Mechanical Pump Shaft Seals

    Image of Product. Front orientation. Exploded view. Contains Annotated. Shaft Seals. Mechanical Pump Shaft Seals.
    Commonly used in well, sump, and displacement pumps, these seals have a two-piece spring-loaded design that keeps the sealing surfaces in contact as the material wears. Seals come furnished as two pieces—the seal and the seat. The seal is comprised of the case, spring, diaphragm, and washer, which come locked together as one piece. Seal Width represents the working height, which is the compressed length when installed. The seat is comprised of the seat and the gasket.
    Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
    Viton® Fluoroelastomer Diaphragm—Viton® fluoroelastomer diaphragms resist a wider range of chemicals than Buna-N.
    Viton® Fluoroelastomer Gasket—Viton® fluoroelastomer gaskets resist a wider range of chemicals than Buna-N.
    Cannot Be Sold Outside North America—Products cannot be sold outside North America due to restrictions.
    Seal
    Seat
    Material
    For Shaft
    Dia.
    Mfr. Equiv.
    No.
    Mfr./Brand Equiv.
    ID
    OD
    Wd.
    ID
    OD
    Wd.
    Washer
    Seat
    Max. Pressure,
    psi
    Cannot Be Sold To
    Each
    304 Stainless Steel Case and 304 Stainless Steel Spring with Viton® Fluoroelastomer Diaphragm and Viton® Fluoroelastomer Gasket
    5/8"606116John Crane Type 6
    Pac-Seal Type 16
    Sealol Type 60L
    0.625"1.190"0.718"0.671"1.250"0.406"Silicon CarbideSilicon Carbide150Outside North America9281K91000000
    3/4"201VSCJohn Crane Type 6
    Pac-Seal Type 16
    Sealol Type 60L
    0.750"1.312"0.718"0.797"1.375"0.406"Silicon CarbideSilicon Carbide150Outside North America9281K9300000
     
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