Piston seals type GPU, made of polyurethane and NBR, must be used in working conditions within the following limits:
- Pressure: 0 to 250 Bar;
- Temperature: -30 to 100°C
- Speed up to 0,5 m/sec.
Please will contact our engineering department if you have particular operating conditions.

Assembly:
The assembly of piston seals GPU is not particurarly difficult because the material is elastic and the seals need a small housing.
It is useful, though not indispendable, to lubrificate the seat and the gasket using the same fluid as in the system or chemically compatible lubricant.