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PARKER HL ROD SEAL

    HL Rod Seal

    Descriptions

    The HL Ultrathan® rod seal is a friction-optimised sealing solution for mobile and stationary hydraulic applications, featuring a new type of functional principle: the singleacting rod seal has pressure-activated, cascading dynamic sealing edges.
    This design clearly reduces static and dynamic friction in hydraulic cylinders and increases the efficiency of hydraulic systems.

    Features

    • Minimal break-away and dynamic friction and no stick-slip tendency ensures
    uniform motion even at low speeds.
    • No stick-slip tendency in case of low
    sliding speeds.
    • Low break-away and dynamic friction,
    even after prolonged standstill under
    high pressure.
    • Constantly low dynamic friction
    throughout the part‘s service life.
    • Insensitive to pressure peaks.
    • Improved lubrication due to pressure
    medium deposit in the dynamic contact
    area.
    • High extrusion 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.
    • Dimensions according to ISO 5597.
    • Short axial assembly length.
    • Installation in closed and undercut
    housings.
    • Additional sizes of machined products
    available on short notice.

    Range of application
    Mainly for applications with increased requirements regarding friction and sliding behaviour in mobile and stationary hydraulics. The dimensions mainly conform to the
    requirements of ISO 5597 for housing and diameters respectively.

    Operating pressure ≤ 250 bar
    Operating temperature -35 °C to +110 °C
    Sliding speed ≤ 1 m/s
    Media Hydraulic oils based on mineral oil and
    PAO fluids

    Compounds
    The Ultrathan® P6030 compound is a Parker material based on polyurethane with a
    hardness of approx. 93 Shore A. Its main advantages in comparison with other polyurethane materials currently available on the market are its excellent wear resistance,
    low compression set and improved temperature resistance.
    Installation
    The seals should have an axial clearance (see columns H and L). To avoid damage at
    the sealing lips, the seals should not be pulled over sharp edges during installation.
    Normally these seals may be snapped into closed grooves. Where access is restricted
    special assembly tools may be required. Proposals for the design of such tools will be
    provided on request. For gap sizes see chapter „Maximum Gap Allowance“.

    dDHL
    20284.55
    22304.55
    25334.55
    30405.76.3
    32425.76.3
    35455.76.3
    36465.76.3
    37475.76.3
    40505.76.3
    45555.76.3
    50605.76.3
    56666.57
    6372.65.56.3
    657577.5