Product group: Piston seal
Design: K compact seal
Profile no.: 71
Specification: Z suitable for two-sided pressure load
Model: STA outer back-up ring
Seal material: PTFE 00 3001
Energising element-material: NBR 80 3001
Back-up rings: PA
Operational application limits
Pressure (MPa): ≤ 40
Temperature (°C): -30 to +100
Running speed (m/s): ≤ 1.5
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
The KK71 compact seal is a double-acting seal, combined with back-up rings made of PA. The PTFE seal body has a very low friction coefficient which ensures smooth running. The integrated back-up rings help to prevent gap extrusion.
This seal can generally be installed with the use of suitable installation tools in cut grooves. Subsequent calibration is necessary.
The KK71 is a very space-saving seal that requires the provision of suitable guide elements. The customer also has the choice of a seal body made of Polyurethane. The KK71 is used particularly in agricultural machines, mobile hydraulic platforms, ground conveyors and standard cylinders.