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PARKER OA PNEUMATIC SEAL

    Pneumatic Seal OA

    The double-acting piston sealing set profile OA consists of a PTFE piston sealing ring and an elastomer O-ring as a preloading element.

    • Due to application-optimized geometry and compounds suitable for use in oiled as well as in oil-free air (after initial lubrication on assembly).
    • Good sealing performance in extremely small assembly conditions.
    • Can also be used for single-acting applications.
    • Good wear resistance.
    • Minimal break-away and dynamic friction and no stick-slip tendency ensures uniform motion even at low speeds.
    • Good energy efficiency due to low friction.
    • Very good emergency running properties in low-lube conditions.
    • Assembly on one-part piston is possible.
    • High temperature resistance assured by suitable O-ring compound selection.
    • Adaptable to nearly all media thanks to high chemical resistance of the sealing ring and large O-ring compound selection.
    • Short axial assembly length.
    • Installation in closed and undercut housings.
    • Available in diameters from 4 to 4500 mm.
    • Additional sizes of machined products available on short notice.

    Range of application
    Piston sealing set for pneumatic applications.
    Operating pressure≤ 16 bar
    Operating temperature-30 °C to +80 °C 1)
    Sliding speed≤ 4 m/s

    Installation
    The grooves must be carefully cleaned and deburred. The cylinder bore must have a lead-in chamfer. When fitting the piston sealing ring there is always a risk that the ring may tilt and be sheared off by normal lead-in chamfers (see chapter “General installation guidelines for piston seals, PTFE seals”, fig. 1). We therefore recommend that up to a cylinder diameter of 230 mm a lead-in chamfer according to fig. 2 or detail “A” is considered. In the case of smaller rings which are especially liable to bending we recommend an open-groove design for diameters smaller than 30 mm.

    SizeGrooveO-ring
    Ø DØ dLNo.CSID
    mmmmmmmmmm
    00707322-0061.782.90
    00808422-0071.783.68
    00909522-0081.784.47
    010010622-0101.786.07
    011011722-0101.786.07
    012012822-0111.787.65
    0140141022-0121.789.25
    016016102.852-1102.629.19
    018018122.852-1122.6212.37
    019019132.852-1122.6212.37
    020020142.852-1132.6213.94
    022022162.852-1142.6215.54
    025025192.852-1162.6218.72
    02802820.503.802-2113.5320.22
    03003022.503.802-2123.5321.82
    03203224.503.802-2143.5324.99
    03503527.503.802-2153.5326.57
    03603628.503.802-2163.5328.17
    03803830.503.802-2173.5329.74
    04004032.503.802-2193.5332.92
    04204234.503.802-2203.5334.52
    04504537.503.802-2213.5337.69
    04804840.503.802-2233.5340.87
    05005037.505.602-3255.3337.47
    05505542.505.602-3265.3340.64
    06006047.505.602-3285.3346.99
    06306350.505.602-3295.3350.17
    06506552.505.602-3295.3350.17
    07007057.505.602-3315.3356.52
    07407461.505.602-3325.3359.69
    07507562.505.602-3335.3362.87
    08008067.505.602-3345.3366.04
    08508572.505.602-3365.3372.39
    09009077.505.602-3375.3375.57
    09209279.505.602-3385.3378.74
    100010087.505.602-3405.3385.09
    105010592.505.602-3425.3391.44
    110011097.505.602-3445.3397.79
    1150115102.505.602-3455.33100.97
    1200120107.505.602-3475.33107.32
    1250125112.505.602-3485.33110.49
    13001301157.552-4256.99113.67
    14001401257.552-4286.99123.19
    15001501357.552-4316.99132.72
    16001601457.552-4356.99142.24
    20002001827.552-4416.99177.17
    22002202027.552-4446.99196.22