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PQP Piston Seal

Movement

Reciprocating

Static

Duty

Low Pressure

Action

Double

Description:

PSQ piston seals provide bi-directional, low friction sealing with increased stability and superior leakage control. The square cut energizer provides low pressure sealing and eliminates backside leakage. This seal also effectively seals between different fluids on each side of the piston seal, making gas/liquid sealing combinations possible.

  • Low friction
  • High stability
  • High strength
  • No stick-slip
  • No rolling or spiral failure
Applications
  • Wind turbines
  • Jacks
  • Lifts
  • Presses
  • Piston accumulators
  • General cylinders
Technical Data
Sealing Element:

Material:

Bronze Filled PTFE

Material Code:

1023

Note: Alternative materials are available upon request

Square Ring Energizer:

Material:

Nitrile/FKM/HNBR

Material Code:

0101/0201/0120

Quad Ring Stabilizer:

Material:

Nitrile/FKM/HNBR

Material Code:

0101/0201/0120

Temperature:

-26°C to +204°C
-15°F to +400°F

Note: Temperature can vary depending material chosen, as well as extrinsic factors.

Speed:

6 ft/s

Pressure:

5,000 psi

Media:

Chemical compatibility chart

Note: All parameters can vary depending on the specific application, please take the above information as a general guideline. Should you have any concerns please contact us at info@kcseals.ca

Hardware Design Guidelines & Part Number

Radial clearances: inch"

Maximum Extrusion Gap

Pressure1000 PSI3000 PSI5000 PSI
Max Diam. Gap Bore 1-2” to 5” 0.024" 0.008" 0.005"
Max Diam. Gap Bore 6” to 10” 0.030" 0.010" 0.006"

Note: Max Diametrical Gap can vary depending on what material is chosen, as well as the temperature and media of the application. Please contact our sales department for more info@sales@kcseals.ca

Surface finish: µinch

Roughness DepthMating SurfaceGroove Surface
Rmax 25-100 <625
RzDin 16-63 <400
Ra 2-8 <63

Note: The sizes listed below are all standard profile dimensions, K.C. Seals can and does manufacturer to non-standard housing dimensions.

Style Part #A Groove WidthH Groove DiameterG Bore Diameter
PSQ-01 0.288 0.884 1.500
PSQ-02 0.288 1.384 2.000
PSQ-03 0.288 1.634 2.250
PSQ-04 0.288 1.884 2.500
PSQ-05 0.288 2.134 2.750
PSQ-06 0.288 2.384 3.000
PSQ-07 0.288 2.634 3.250
PSQ-08 0.288 2.884 3.500
PSQ-09 0.288 3.384 4.000
PSQ-10 0.288 3.634 4.250
PSQ-11 0.288 3.884 4.500
PSQ-12 0.288 4.384 5.000
PSQ-13 0.375 4.660 5.500
PSQ-14 0.375 5.160 6.000
PSQ-15 0.375 5.660 6.500
PSQ-16 0.375 6.160 7.000
PSQ-17 0.375 7.160 8.000
PSQ-18 0.375 8.160 9.000
PSQ-19 0.375 9.160 10.000
Style Part #A Groove WidthH Groove DiameterG Bore Diameter