O-ring seal PSQ seriesroundpolyurethanepiston
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Characteristics
- Type
- O-ring
- Configuration
- round
- Material
- polyurethane
- Application
- piston, housing, profile, cutting
- Fluid
- for mineral oil
- Other characteristics
- dynamic, static, high-pressure
- Temperature limit
Max.: 110 °C
(230 °F)Min.: -35 °C
(-31 °F)- Pressure limit
250 bar, 400 bar
(3,625.9 psi, 5,801.5 psi)- Diameter
Max.: 109 mm
(4.291 in)Min.: 24.5 mm
(0.965 in)- Outer diameter
Max.: 130 mm
(5.118 in)Min.: 40 mm
(1.575 in)- Shore A hardness
93 unit, 98 unit
- Speed
0.8 m/s
(2.6 ft/s)
Description
The PSQ seal has a double point profile in the in the dynamic part, and two small steps in
the static part where the Q-ring is housed.
The Q-ring energizes the seal and provides a perfect sealing performance at low and high pressure.
The shape of the central double profile prevents hydrodynamic pressures on the seal and the resulting blow-out effect.
The sealing parts are in polyurethanes with different hardness, according to the specific operating
pressures.
Compound reference: CN (93 Shore A with Q-ring ) or, alternatively, DN (98 Shore A with Q-ring)
Cutting edges or flash must be removed in the housing of the seal.
Ensure a lead-in chamfer in the bore to facilitate the piston installation.
For further information please refer to the assembly instructions on page 26
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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.