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