KN 21

Description
Product group: Piston seal
Design: N symmetrical u-ring (21)
Profile no.: 21
Specification: E suitable for one-sided pressure load
Seal material: NBR 90 3006

Operational application limits
Pressure (MPa): ≤ 16
Temperature (°C): -30 to +100
Running speed (m/s): ≤ 0.5

Media
Hydraulic oils acc. to DIN 51524 Part 1 – 3, lubricating oils, mineral oil based lubricating greases, highly non-flammable hydraulic fluids HFA, HFB, HFC acc. to VDMA 24317

Function
The KN 21 u-ring has a symmetrical design which allows it to be used as a piston seal and as a rod seal. Apart from its application in hydraulics, this design can also be used for pneumatic applications.