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Shaft Seals

  • 340c

    340c

    Item #N/A

    Single Spring Mechanical Seal 340C – Equal to industry standard number 340/ PS-340

    1-7/8″ Single spring mechanical seal with 2.625 x 0.500 cup seat, 2.520 rotary OD, 1.500″ working length

    Crimped rotary head, electro polished 304SS metal parts.

    Single spring mechanical seal, with an elastomeric bellows, independent of the direction of rotation of the shaft. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.

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  • 356c

    356c

    Item #N/A

    Single Spring Mechanical Seal 356C – Equal to industry standard number 356/ PS-356

    1-1/8″ Single spring mechanical seal with 1.750 x .437 cup seat, 1.650 rotary OD, 1.062″ working length

    Crimped rotary head, electro polished 304SS metal parts.

    Single spring mechanical seal, with an elastomeric bellows, independent of the direction of rotation of the shaft. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.

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  • 358c

    358c

    Item #N/A

    Single Spring Mechanical Seal 358C – Equal to industry standard number 358/ PS-358

    3/4″ Single spring mechanical seal with 1.375 x .405″ cup seat , 1.197 rotary OD, .875″ working length

    Crimped rotary head, electro polished 304SS metal parts.

    Single spring mechanical seal, with an elastomeric bellows, independent of the direction of rotation of the shaft. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.

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  • 359c

    359c

    Item #N/A

    Single Spring Mechanical Seal 359C – Equal to industry standard number 359 / PS-359

    5/8″ Single spring mechanical seal with 1.250 x .406″ cup seat , 1.063 rotary OD, .875″ working length

    Crimped rotary head, electro polished 304SS metal parts.

    Single spring mechanical seal, with an elastomeric bellows, independent of the direction of rotation of the shaft. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.

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  • 446c

    446c

    Item #N/A

    Single Spring Mechanical Seal 446C – Equal to industry standard number 446/ PS-446

    1-3/4″ Single spring mechanical seal with 2.500 x 0.500 cup seat, 2.402 rotary OD, 1.375″ working length

    Crimped rotary head , electro polished 304SS metal parts.

    Single spring mechanical seal, with an elastomeric bellows, independent of the direction of rotation of the shaft. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.

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  • 758c

    758c

    Item #N/A

    Single Spring Mechanical Seal 758C – Equal to industry standard number 758/ PS-758

    1-1/2″ Single spring mechanical seal with 2.125 x 0.437 cup seat, 2.067 rotary OD, 1.125″ working length

    Crimped rotary head, electro polished 304SS metal parts.

    Single spring mechanical seal, with an elastomeric bellows, independent of the direction of rotation of the shaft. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.

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  • 844c

    844c

    Item #N/A

    Single Spring Mechanical Seal 844C – Equal to industry standard number 844/ PS-844

    2-1/8″” Single spring mechanical seal with 3.000 x 0.562 cup seat, 2.776 rotary OD, 1.687″ working length

    Crimped rotary head, electro polished 304SS metal parts.

    Single spring mechanical seal, with an elastomeric bellows, independent of the direction of rotation of the shaft. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.

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  • SMSC 1SV, SINGLE CARTRIDGE, ANSI

    SMSC 1SV, SINGLE CARTRIDGE, ANSI

    Item #N/A

    Our in-house mechanical seal is assembled using high-quality components sourced both domestically and internationally, ensuring exceptional performance at an affordable cost. This is our most widely used single cartridge mechanical seal—reliable, durable, and built to meet demanding industrial applications.

    Multiple spring configurations are available in a range of materials to suit various fluids. Its unified design and standardized face components simplify maintenance and streamline stocking for repairs.

    Features:

    In applications involving high pressure and high temperature, monolithic seal faces offer the highest level of face stability, extending seal life. Seal face drives minimize face damage in stop/start applications and viscous fluids by covering a large contact surface. Our anti-rotation area in the gland is a slotted design thus increasing life from continuous start/stop procedures compared to other designs. With a wider slot and rounded edge we achieve greater life of these critical components.

    1 Large 3/8″ NPT flush port is standard on this item,  maximizing cooling and extending seal life.

    Short inboard axial length.

    Double lip metal spacer clips guarantee perfect fitment and safe transportation of seal.

    Reduces power consumption with hydraulically balanced seal face technology.

    Non-shaft-fretting sleeve elastomer and positive set screw drive.

    Multiple spring seal-face loading. Greatest possible compensation for axial movement.

    Stationary design suitable for high speed applications.

    Sizes available from 1″ to 2-7/8″ in standard  “ANSI” design. See other items on our site for other sizes, such as Large single cartridge seal.

    Model NO.

    SMSC 1SV __
    Standard

    ANSI, 1”-2-7/8”
    Style

    Single cartridge mechanical seal, Multi spring with flush
    Material

    Silicon carbide/Silicon carbide, FKM, 304 stainless steal
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  • SMSC 1SV, SINGLE CARTRIDGE, LARGE

    SMSC 1SV, SINGLE CARTRIDGE, LARGE

    Item #N/A

    Our in-house mechanical seal is assembled using high-quality components sourced both domestically and internationally, ensuring exceptional performance at an affordable cost. This is our most widely used single cartridge mechanical seal—reliable, durable, and built to meet demanding industrial applications.

    Multiple spring configurations are available in a range of materials to suit various fluids. Its unified design and standardized face components simplify maintenance and streamline stocking for repairs.

    Features:

    In applications involving high pressure and high temperature, monolithic seal faces offer the highest level of face stability, extending seal life. Seal face drives minimize face damage in stop/start applications and viscous fluids by covering a large contact surface. Our anti-rotation area in the gland is a slotted design thus increasing life from continuous start/stop procedures compared to other designs. With a wider slot and rounded edge we achieve greater life of these critical components.

    1 Large 3/8″ NPT flush port is standard on this item,  maximizing cooling and extending seal life.

    Short inboard axial length.

    Double lip metal spacer clips guarantee perfect fitment and safe transportation of seal.

    Reduces power consumption with hydraulically balanced seal face technology.

    Non-shaft-fretting sleeve elastomer and positive set screw drive.

    Multiple spring seal-face loading. Greatest possible compensation for axial movement.

    Stationary design suitable for high speed applications.

    Sizes available from 3″ to 4″

    Model NO.

    SMSC 1SV __
    Style

    Single cartridge mechanical seal, Multi spring with flush
    Material

    Silicon carbide/Silicon carbide, FKM, 304 stainless steal
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