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HP Hydraulic piston seals

HP-PSH-RR


Description:

The PSH seal is similar to the PSA type, but differs by the presence of a polyacetal guide ring (POM) to reduce possible bias and avoid extrusion. Made from thermoplastic rubber, the RR support ring does not allow the cuff extrusion during the return movement.


Technical specifications:

Pressure: < 400 bar at +60В°C.

Speed: < 0,5 m/s.

Temperature: from -35В°C to +100В°C with a peak value of +110В°C.

Operating environment: mineral oils and liquids (see Table 1 on page 1.2.4).


Material:

Name: polyurethane (PU).

Properties: PU — has a high modulus of elasticity, low residual deformation and high abrasion resistance. The guide ring is made of polyacetal material (POM).

Material code: PSH:CR.

The support ring is made of thermoplastic rubber R2.

Material code: RR:R2.


Installation:

During installation, it is necessary to observe the allowable value of the roughness of the piston surface (also grinding the landing groove).

Mount the cuff for the lip of the landing groove until the piston moves lightly. The seal must always be lubricated before installation..

(For more information, see the Installation Instructions on page 1.2.14).


Description


Description:

The PSH seal is similar to the PSA type, but differs by the presence of a polyacetal guide ring (POM) to reduce possible bias and avoid extrusion. Made from thermoplastic rubber, the RR support ring does not allow the cuff extrusion during the return movement.


Technical specifications:

Pressure: < 400 bar at +60В°C.

Speed: < 0,5 m/s.

Temperature: from -35В°C to +100В°C with a peak value of +110В°C.

Operating environment: mineral oils and liquids (see Table 1 on page 1.2.4).


Material:

Name: polyurethane (PU).

Properties: PU — has a high modulus of elasticity, low residual deformation and high abrasion resistance. The guide ring is made of polyacetal material (POM).

Material code: PSH:CR.

The support ring is made of thermoplastic rubber R2.

Material code: RR:R2.


Installation:

During installation, it is necessary to observe the allowable value of the roughness of the piston surface (also grinding the landing groove).

Mount the cuff for the lip of the landing groove until the piston moves lightly. The seal must always be lubricated before installation..

(For more information, see the Installation Instructions on page 1.2.14).