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UNP profile data

Material
codes
Metric sizes → U-1029
Inch sizes → U-1023
Materials
PressureUp to 350 bar (5 075 psi)
SpeedPressure ≤ 250 bar (3 625 psi) → up to 1 m/s (3.2 ft/s)
Pressure > 250 bar (3 625 psi) → up to 0,5 m/s (1.6 ft/s)
Temperature
range


For temperature limits depending on fluid compatibility → table 1
Extreme low temperature range: may be intermittently exposed (e.g. cold start-up) without seal damage, but seal performance may be compromised while in this range
Temperatures below the recommended operating range: seal performance depends on system design (precision guiding arrangement recommended)
Recommended operating temperature range for this profile and material
Temperatures above the recommended operating range: acceptable only with reduced pressure, speed, e-gap and/or with the use of a full-face anti-extrusion ring
Extreme high temperature range: only occasional short-term exposure (e.g. cylinder in curing oven of a powder coating process)
Counter-
surface
Specifications for effective sealing systems
Size listMetric [pdf]
Inch [pdf]
Additional
information
Single-acting piston seals
Maximum values of application parameters (e.g. pressure, speed, temperature, e-gap) should not be applied continuously nor simultaneously.
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