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PARKER AV WIPER SEAL

    AV Wiper Seal

    Descriptions

    The AV wiper protects the hydraulic system against, dust, dirt, moisture and other
    environmental influences.
    The moulded dirt shield on the wiper prevents the migration of moisture underneath
    the wiper in the groove. The common occurrence of corrosion in the groove can thus
    be avoided. In applications with a vertically positioned piston rod head the dirt shield
    to protect the seal groove is particularly effective. Water running down the piston rod
    is diverted and does not enter the wiper groove. Due to the press fit in the housing
    and the pressure relief drill hole the risk of the wiper being pushed out of the cylinder
    housing is minimised.

    Features

    • Robust seal profile for harshest operating conditions.
    • Extreme wear resistance.
    • Excellent media resistance in case of
    suitable compound selection.
    • Suitable compounds available for
    special requirements of the chemical
    process industry.
    • Suitable compounds available for special requirements of the food processing
    industry.
    • The dirt shield prevents the intrusion
    of dirt and moisture in vertical cylinder
    applications.
    • Installation in closed and undercut
    housings.
    • Additional sizes of machined products
    available on short notice.

    Range of application
    The AV wiper can be used in all hydraulic cylinders and is particularly well-suited for
    mobile applications.

    Operating temperature -35 °C to +100 °C
    Sliding speed ≤ 2 m/s

    Compounds
    The standard material is Ultrathan® P5008, a Parker compound based on polyurethane with a hardness of approx. 93 Shore A. Compared to off-the-shelf polyurethane
    grades it is characterized by higher thermal and hydrolysis resistance and a lower
    compression set.
    Installation
    The profile AV double lip wiper ring can easily be snapped into grooves of simple
    design. Any contact of the wiper lip with piston rod eyes or other connecting parts
    should be avoided.
    However, we recommend the wiper lip to be out-side the housing, so that the wipedoff dirt falls off.
    A ring-shaped area for improved abutting of the dirt shield should be provided at the
    front side of the cylinder.

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