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HERCULES MKPD PISTON SEAL

    MKPD Piston Seal

    A double acting piston seal with many features: Two compact seal edges to concentrate the load against the dynamic surface, a cavity between the two external seal edges to retain fluid (reducing friction and wear), side grooves to allow pressure to load the energizer in all working conditions, high sealing performance at low pressure, excellent wear-resistance, and high resistance against extrusion.

    SEAL INFORMATION
    MATERIAL97A URETHANE SEAL
    70A NITRILE
    EXPANDER
    TEMPERATURE
    RANGE
    -22° TO +210° F
    PRESSURE
    RANGE
    0 TO 5,800 PSI
    SPEED1.5 FT/SEC
    MAXIMUM EXTRUSION GAP
    Pressure (psi)7251450290043505800
    Max Diametrical
    Gap (inches)
    0.0470.0310.0160.010.007
    Part NumberA
    Nom. ID
    B
    Nom. OD
    C
    Nom. Ht
    MKPD-25X14X4.2
    MKPD-25X17.5X3.2
    MKPD-30X22.5X3.2
    MKPD-32X21X4.2
    MKPD-32X24.5X3.2
    MKPD-35X27.5X3.2
    MKPD-38X30.5X3.2
    MKPD-40X24.5X6.3
    MKPD-40X29X4.2
    MKPD-40X32.5X3.2
    MKPD-45X29.5X6.3
    MKPD-45X34X4.2
    MKPD-50X34.5X6.3
    MKPD-50X39X4.2
    MKPD-55X39.5X6.3
    MKPD-55X44X4.2
    MKPD-60X44.5X6.3
    MKPD-60X49X4.2
    MKPD-63X47.5X6.3
    MKPD-63X52X4.2
    MKPD-65X49.5X6.3
    MKPD-65X54X4.2
    MKPD-70X54.5X6.3
    MKPD-70X59X4.2
    MKPD-75X59.5X6.3
    MKPD-75X64X4.2
    MKPD-80X64.5X6.3
    MKPD-80X69X4.2
    MKPD-85X69.5X6.3
    MKPD-90X74.5X6.3
    MKPD-95X79.5X6.3
    MKPD-100X84.5X6.3
    MKPD-100X86.5X6.3
    MKPD-110X94.5X6.3
    MKPD-120X104.5X6.3
    MKPD-125X109.5X6.3
    MKPD-130X114.5X6.3
    MKPD-140X119X8.1
    MKPD-150X129X8.1
    MKPD-160X139X8.1
    MKPD-170X149X8.1
    MKPD-180X159X8.1
    MKPD-200X179X8.1
    MKPD-250X229X8.1
    14
    17.5
    22.5
    21
    24.5
    27.5
    30.5
    24.5
    29
    32.5
    29.5
    34
    34.5
    39
    39.5
    44
    44.5
    49
    47.5
    52
    49.5
    54
    54.5
    59
    59.5
    64
    64.5
    69
    69.5
    74.5
    79.5
    84.5
    86.5
    94.5
    104.5
    109.5
    114.5
    119
    129
    139
    149
    159
    179
    229
    25
    25
    30
    32
    32
    35
    38
    40
    40
    40
    45
    45
    50
    50
    55
    55
    60
    60
    63
    63
    65
    65
    70
    70
    75
    75
    80
    80
    85
    90
    95
    100
    100
    110
    120
    125
    130
    140
    150
    160
    170
    180
    200
    250
    4.2
    3.2
    3.2
    4.2
    3.2
    3.2
    3.2
    6.3
    4.2
    3.2
    6.3
    4.2
    6.3
    4.2
    6.3
    4.2
    6.3
    4.2
    6.3
    4.2
    6.3
    4.2
    6.3
    4.2
    6.3
    4.2
    6.3
    4.2
    6.3
    6.3
    6.3
    6.3
    6.3
    6.3
    6.3
    6.3
    6.3
    8.1
    8.1
    8.1
    8.1
    8.1
    8.1
    8.1