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HERCULES DYR BUFFER SEAL

    DYR Buffer Seal

    This U-cup style buffer ring offers an asymmetric sealing lip profile, chamfered sealing edges, and pressure relieving capabilities to prevent inner pressure entrapment when employed in a tandem sealing system. This rod buffer seal is designed to absorb impact pressure fluctuations under high-load conditions thus increasing the life of the primary seal.

    SEAL INFORMATION
    MATERIALURETHANE U-STYLE
    POLYACETAL
    BACK-UP
    TEMPERATURE
    RANGE
    -40° TO +230° F
    PRESSURE
    RANGE
    0 TO 8,000 PSI
    SPEED3 FT/SEC
    Part NumberA
    Nom. ID
    B
    Nom. OD
    C
    Nom. Ht
    DYR28-1.25-12
    DYR28-1.37-12
    DYR28-1.50-12
    DYR28-1.62-12
    DYR28-1.75-12
    DYR32-1.75-20BU
    DYR32-1.87-22BU
    DYR28-2.00-12
    DYR32-2.12-22BU
    DYR34-2.25-22BU
    DYR-25003
    DYR34-2.50-22BU
    DYR-27503
    DYR31-2.75-22BU
    DYR-30003
    DYR31-3.00-22BU
    DYR-35003
    DYR34-3.50-22BU
    DYR-40003
    DYR31-4.00-22BU
    DYR-45003
    DYR-47503
    DYR-50003
    DYR-55003
    DYR31-5.75-23BU
    DYR-60003
    DYR-65003
    DYR-70003
    DYR-75003
    DYR-80003
    DYR37-15.75-31BU
    1-1/4
    1-3/8
    1-1/2
    1-5/8
    1-3/4
    1-3/4
    1-7/8
    2
    2-1/8
    2-1/4
    2-1/2
    2-1/2
    2-3/4
    2-3/4
    3
    3
    3-1/2
    3-1/2
    4
    4
    4-1/2
    4-3/4
    5
    5-1/2
    5-3/4
    6
    6-1/2
    7
    7-1/2
    8
    15-3/4
    1-13/16
    1-15/16
    2-1/16
    2-3/16
    2-5/16
    2.4
    2.531
    2-9/16
    2.77
    2-15/16
    3.116
    3-3/16
    3.366
    3-3/8
    3.616
    3-5/8
    4.116
    4-3/16
    4.616
    4-5/8
    5.116
    5.366
    5.616
    6.116
    6-3/8
    6.616
    7.116
    7.616
    8.116
    8.616
    16-1/2
    1/8
    1/8
    1/8
    1/8
    1/8
    .2
    .22
    1/8
    .22
    3/16
    .235
    3/16
    .235
    3/16
    .235
    3/16
    .235
    3/16
    .235
    3/16
    .235
    .235
    .235
    .235
    .235
    .235
    .235
    .235
    .235
    .235
    .305