BP Profile, Double-Acting Hydraulic Piston Seal | Parker NA
687567
687567

BP Profile, Double-Acting Hydraulic Piston Seal

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Resilon® polyurethane piston seal for medium- to heavy duty, bi-directional hydraulic applications. Wear resistant, extrusion resistant and extended temperature capable.

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Description
    AVAILABILITY
    A sampling of Parker’s part numbers are shown in the configurator above for select materials and sizes.   If the material and dimensions required are not shown, assistance with part number configuration may be found in the literature documents in the Product Support tab.  To check current tooling, review the Part Number Look-up document in the Product Support tab.  Contact Parker for requirements outside typical ranges.

    PERFORMANCE ADVANTAGES
    Parker’s BP profile is a squeeze type, polyurethane cap piston seal for use in medium to heavy duty, bi-directional hydraulic applications.  This seal is primarily designed for linear applications but has been successfully used as a low speed rotary seal.  The standard material for this profile is Resilon® compound P4304D60, a proprietary Parker polyurethane offering higher wear resistance, extrusion resistance, and extended temperature range over 4304 polyurethane, compound P4304D60.  This is a proprietary Parker polyurethane offering higher wear resistance, greater extrusion resistance, and extended temperature range over standard grade polyurethanes.  The Resilon 4304 cap is energized using a resilient nitrile elastomer offering low compression set.  

    The BP profile’s geometry provides a fluid reservoir between the two sealing lips which holds system fluid, resulting in reduced breakaway and running friction.  Additional features of the BP Profile include:
    • Designed to retrofit o-ring grooves
    • Easy to install
    • Resists rolling and twisting in long stroke applications.

    Available in Parker’s proprietary Resilon polyurethane, the BP Profile provides
    • Long life
    • Extrusion resistance
    • Low compression set
    • Shock load resistance, and
    • Excellent sealing performance at zero pressure

    Standard Materials:
    • P4304D60 Resilon polyurethane; Temp -65 / +275F; Pressure* 7000 psi; Surface speed
Description

Performance Characteristics

Bore Diameter

1.5 to 8.002 inch
32.0 to 200.0 mm

Gland Depth

0.121 to 0.237 inch
3.7 to 10.5 mm

Maximum Operating Pressure

up to 7000 psi

Minimum Operating Temperature

-65 °F

Maximum Operating Temperature

275 °F

Seal Material

P4304D60

Elastomer

Nitrile (NBR)

Durometer

70 Shore A (energizer ring)
60 Shore D (cap ring)

For Fluid Type

Hydraulic Oil (petroleum based)

Color

Brown

Thermal Application Type

Expanded Low and High Temperature (< -30°F, > 250°F)

Polymer Material Options

Thermoplastic Polyurethane (TPU, Resilon®, Ultrathan®)

Media

Hydraulic

Maximum Surface Speed

100 ft/min
0.5 m/sec

O-Ring Dash Number

Various

FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS DESCRIBED HEREIN OR RELATED ITEMS CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY DAMAGE. This document and other information from Parker-Hannifin Corporation, its subsidiaries and authorized distributors provide product or system options for further investigation by users having technical expertise. The user, through its own analysis and testing, is solely responsible for making the final selection of the system and components and assuring that all performance, endurance, maintenance, safety and warning requirements of the application are met. The user must analyze all aspects of the application, follow applicable industry standards, and follow the information concerning the product in the current product catalog and in any other materials provided from Parker or its subsidiaries or authorized distributors. To the extent that Parker or its subsidiaries or authorized distributors provide component or system options based upon data or specifications provided by the user, the user is responsible for determining that such data and specifications are suitable and sufficient for all applications and reasonably foreseeable uses of the components or systems...

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