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Burker Co., Ltd.

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Product ID: PA

PTFE Seals-type PA

Seal sets of type RO and PO can be used in hydraulic applications in place of dynamically stressed O-rings. Existing grooves can be used as fitting area if they conform to the US standard AS 568A.
These seal sets enable the dynamic behavior to be improved, as a result of which higher gliding speeds, smoother running properties and higher wear resistance are attained. PTFE Glide Seal sets can also be used in O-ring fitting areas designed for one or two back-up rings.

Care must be taken in the design to ensure that the groove width L is selected according to the number of back-up rings. The standard material combination is modified PTFE and NBR (O-ring).

Piston seal is suitable for bi-directional pressurization, hydraulic cartridge and spool valves such as control cylinders, servo-controlled systems, machine tools, and construction machinery. It offers low break-out and running friction to guarantee steady movement even at low speed or intermittent but frequent reciprocating action.


If you are looking for more products information, please visit our website:www.burker.com.tw



PTFE Seals-type PA(PA)

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Features:

  • Application Range
    • Pressure:≤400 bar
    • Temperature:-40 ~ 200° C
    • Speed:≤4 m/s
    • Standard Material:Bronze filled PTFE
    • Other materials are available for specified conditions


Cylinder Bore Groove Bottom Groove Width (L) for no. of Back-up Rings Radius O-ring code
yDi yDa L R O-ring code
8 - 14.9 Di + 4.9 2.2 ≤0.3 A
15 - 39.9 Di + 7.5 3.2 ≤0.5 B
40 - 79.9 Di + 11.0 4.2 ≤0.8 C
80 - 132.9 Di + 15.5 6.3 ≤1.2 D
133 - 329.9 Di + 21.0 8.1 ≤1.5 E
330 - 669.9 Di + 24.5 8.1 ≤1.5 F
670 - 1000.0 Di + 27.3 9.5 ≤1.5 G

Main Product:
PTFE Seal, Spring Energized Seals, Hydraulic Seals, Pneumatic Seals, Parker Seal, High Pressure Seals, Rotary Seals, Hiper Seal

Ordering information:
  • Minimum Order: Negotiable
  • FOB: Kaohsiung, Taiwan
  • TEL: 886-7-7886950
  • FAX: 886-7-7880980
  • E-mail: burker.co@msa.hinet.net


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