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Parker Pneumatic Piston Seals

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Industrial Seal Inc. offers a wide range of hydraulic and pneumatic piston seal profiles to meet the broad demands of the fluid power industry. These piston seals are offered in a variety of compounds and lip geometries for the best possible solution for a given application.

Click each link below to expand the corresponding Product Information.

  • E4 Profile, Premium Rounded Lip U-cup Piston Seal

    Parkers E4 profile is a non-symmetrical piston seal designed to seal both lubricated and non-lubricated air. To ensure that critical surfaces retain lubrication, the radius edge of the lip is designed to hydroplane over pre-lubricated surfaces. The standard compound for the E4 profile is Parker proprietary Nitroxile ELF compound N4274A85. This compound is formulated with proprietary internal lubricants to provide Extreme Low Friction and excellent wear resistance. This compound provides extended cycle life over standard nitrile and carboxylated nitrile compounds.

    Technical Data

    Standard Materials* Temperature Range Pressure Range† Surface Speed
    N4274A85 -10F to 250F
    (-23C to 121C)
    250psi
    (17 bar)
    < 3 ft/s
    (1 m/s)
    N4180A80 -40F to 250F
    (-40C to 121C)
    250psi
    (17 bar)
    < 3 ft/s
    (1 m/s)
    V4208A90 -5F to 400F
    (-21C to 204C)
    250psi
    (17 bar)
    < 3 ft/s
    (1 m/s)
    P5065A88 -70F to 200F
    (-57C to 93C)
    250psi
    (17 bar)
    < 3 ft/s
    (1 m/s)

    * Alternate Materials: For applications that may require an alternate material, please contact Industrial Seal Inc.
    † Pressure Range: without rear wings.

  • BMP Profile, Rounded Lip Seal with Bumper Cushion

    The Parker BMP profile is a low friction bumper and seal providing quiet deceleration and reduced end stroke noise in pneumatic piston applications. Designed to mount on the ends of the piston and to be used along with Parkers V6 profile cushion seal, the bumper pad absorbs the final inertia which prevents contact between the piston and tube ends. The BMP profile can also be used without cushion seals in less critical applications. The BMP profile has a rounded sealing edge which hydroplanes over pre-lubricated surfaces extending cycle life and reducing friction. The BMP profile is available in Parker proprietary Nitroxile compound, offering low friction and wear resistance, as well as fluorocarbon for extended temperature range.

    Technical Data

    Standard Materials* Temperature Range Pressure Range† Surface Speed
    N4274A85 -10F to 250F
    (-23C to 121C)
    250psi
    (17 bar)
    < 3 ft/s
    (1 m/s)
    V4208A90 -5F to 400F
    (-21C to 204C)
    250psi
    (17 bar)
    < 3 ft/s
    (1 m/s)

    * Alternate Materials: For applications that may require an alternate material, please contact Industrial Seal Inc.
    † Pressure Range: without rear wings.

  • TP Profile (Piston T-seal), Compact Seal with Anti-Extrusion Technology

    The Parker BMP profile is a low friction bumper and seal providing quiet deceleration and reduced end stroke noise in pneumatic piston applications. Designed to mount on the ends of the piston and to be used along with Parkers V6 profile cushion seal, the bumper pad absorbs the final inertia which prevents contact between the piston and tube ends. The BMP profile can also be used without cushion seals in less critical applications. The BMP profile has a rounded sealing edge which hydroplanes over pre-lubricated surfaces extending cycle life and reducing friction. The BMP profile is available in Parker proprietary Nitroxile compound, offering low friction and wear resistance, as well as fluorocarbon for extended temperature range.

    Technical Data

    Base Elastomer* Temperature Range Surface Speed
    N4115A75 -40F to 225F
    (-40C to 107C)
    < 1.6 ft/s
    (0.5 m/s)
    N4274A85 -10F to 250F
    (-23C to 121C)
    < 1.6 ft/s
    (0.5 m/s)
    V4205A75 -20F to 400F
    (-29C to 204C)
    < 1.6 ft/s
    (0.5 m/s)
    E4259A80 -65F to 300F
    (-54C to 149C)
    < 1.6 ft/s
    (0.5 m/s)

    * Alternate Materials: For applications that may require an alternate material, please contact Industrial Seal Inc. or alternate elastomer materials.

  • S5 Profile, Square PTFE Cap Seal

    The Parker S5 profile is a bi-directional piston seal for use in low to medium duty hydraulic actuators and is suitable for sealing against hardened surfaces in pneumatic applications. The S5 profile is a two piece design comprised of a standard size Parker o-ring energizing a glass-filled PTFE cap. The S5 profile offers long wear, low friction and because of its short assembly length requires minimal gland space on the piston. The seal is commonly used in applications such as agriculture hydraulics, mobile hydraulics, machine tools, and hydraulic presses. Parkers S5 profile will retrofit non-Parker seals of similar design and is an updated version of the Parker S5000 piston seal.

    The S5 profile may be ordered without the energizer by omitting theenergizer code. See part number nomenclature.

    Technical Data

    Standard Materials* Temperature Range Pressure Range† Surface Speed
    Cap
    020315% fiberglass filled PTFE -200F to 575F
    (-129C to 302C)
    3500psi
    (241 bar)
    < 13 ft/s
    (4 m/s)
    Energizer
    A70A Nitrile -30F to 250F
    (-34C to 121C)
       

    * Alternate Materials: For applications that may require an alternate material, please contact Industrial Seal Inc. for alternate PTFE and energizer materials.
    † Pressure Range: without rear wings.

  • R5 Profile, Rectangular PTFE Cap Seal

    The Parker R5 profile is a bi-directional piston seal for use in medium to heavy duty hydraulic actuators and is suitable for sealing against hardened surfaces in pneumatic applications. The R5 profile is a two piece design comprised of a standard size rubber square ring energizing a rectangular shaped PTFE cap. The R5 profile offers excellent stability, long wear, low friction and extrusion protection. The seal is commonly used in applications such as agriculture hydraulics, mobile hydraulics, machine tools and hydraulic presses. Parkers R5 profile will retrofit non- Parker seals of similar design and is an updated version of the Parker R5100 piston seal.

    Technical Data

    Standard Materials* Temperature Range Pressure Range† Surface Speed
    Cap
    020315% fiberglass filled PTFE -200F to 575F
    (-129C to 302C)
    3500psi
    (241 bar)
    < 13 ft/s
    (4 m/s)
    Energizer
    A70A Nitrile -30F to 250F
    (-34C to 121C)
       

    * Alternate Materials: For applications that may require an alternate material, please contact Industrial Seal Inc. for alternate PTFE and energizer materials.
    † Pressure Range: without rear wings.

  • CP Profile, PTFE Piston Cap Seal

    The Parker CP profile is a cap seal with anti-extrusion, low friction and low wear features. The CP profile is a bi-directional piston seal for use in low to medium duty applications. The CP profile retrofits into a standard size o-ring groove without modification. There are three CP profiles to match the groove width for a single o-ring, o-ring with one back-up, or an o-ring with two back-up rings. Because of the unique design of the filled PTFE cap, the CP profile offers long wear, low friction and anti-extrusion.

    Because of its short assembly length, only minimal gland space is needed to fit the seal on the piston. Parkers CP profile will retrofit non- Parker seals of similar design.

    CP0 a standard o-ring groove.
    CP1 an o-ring groove designed for one back-up ring.
    CP2 an o-ring groove designed for two back-up rings.

    The CP profile may be ordered without the energizer by omitting the energizer code. See part number nomenclature.

    Technical Data

    Standard Materials* Temperature Range Pressure Range† Surface Speed
    Cap
    040140% bronze filled PTFE -200F to 575F
    (-129C to 302C)
    3500psi
    (240 bar)
    < 13 ft/s
    (4 m/s)
    Energizer
    A70A Nitrile -30F to 250F
    (-34C to 121C)
       

    * Alternate Materials: For applications that may require an alternate material, please contact Industrial Seal Inc. for alternate PTFE and energizer materials.
    † Pressure Range: without rear wings.
    Notched Walls: Adding an N to the end of the part number indicates that notches are to be added to the side walls of the PTFE cap. Notches can help optimize the seals response to fluid pressure. In application, the void created by the notch allows fluid pressure to fill the cavity between the side face of the gland and the seal. Contact Industrial Inc. for the availability and cost to add side notches to the CP profile.
    N = Notched walls<

  • OA Profile, Compact PTFE Piston Cap Seal

    The Parker OA profile is a bi-directional piston seal for use in pneumatic and low to medium duty hydraulic applications. The OA profile is a two piece design utilizing a rectangular PTFE cap and standard size o-ring. The OA profile is an excellent choice for applications requiring a compact design. The unique properties of the modified PTFE provide added wear resistance for improved cycle life. Parkers OA profile will retrofit non-Parker seals of similar design.

    The OA profile may be ordered without the energizer by omitting the energizer code. See part number nomenclature.

    Technical Data

    Standard Materials* Temperature Range Pressure Range† Surface Speed
    Cap
    0102Modified PTFE -320F to 400F
    (-195C to 282C)
    1500psi
    (103 bar)
    < 13 ft/s
    (4 m/s)
    Energizer
    A70A Nitrile -30F to 250F
    (-34C to 121C)
       

    * Alternate Materials: For applications that may require an alternate material, please see Section 3 for alternate PTFE and energizer materials.
    † Pressure Range: without rear wings.
    Notched Walls: Notches can be added to the side walls of the PTFE cap. This can help to optimize the seals response to fluid pressure. Notched side walls help ensure that fluid pressure fills the cavity between the side face of the seal and the side face of the seal gland. Consult Industrial Seal Inc. for the availability and cost to add side notches to the OA profile.
    N = Notched walls

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