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HP Hydraulic piston seals

HP-PSQ


Description:

The PSQ cuff is a double profile on the dynamic part and a surface with two small protrusions on the static part, where the o-ring is fixed. The O-ring activates the seal and provides excellent cuff operation at low and high pressures. The special shape of the double profile prevents fluid leakage in the event of a hydrodynamic impact.

The use of this type of PSQ seals:

High resistance to abrasion.

construction machinery;

excavators;

truck cranes;

forklift trucks.

Especially recommended for heavy duty applications.

Easy installation on the piston without special tools.

Resistant to impact loads.

High wear resistance of the material ensures a long service life.


Technical specifications:

Pressure: < 250 bar at +60В°C - material type CO, Shore 93 A.

Pressure: < 400 bar at +60В°C - material type DO, Shore 98 A.

Speed: < 0,8 m/s.

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

Operating environment: mineral oil (see Table 1 on page 1.2.4).


Material:

Both sealing parts are made of polyurethane with different rigidity according to working pressure.

Material code: CQ (Shore 93 A with o-ring) or as an alternative to DQ (Shor 98 A with o-ring).


Installation:

It is necessary to observe the permissible value of the surface roughness (grinding of the landing groove) during the installation of the seal.

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 PSQ cuff is a double profile on the dynamic part and a surface with two small protrusions on the static part, where the o-ring is fixed. The O-ring activates the seal and provides excellent cuff operation at low and high pressures. The special shape of the double profile prevents fluid leakage in the event of a hydrodynamic impact.

The use of this type of PSQ seals:

High resistance to abrasion.

construction machinery;

excavators;

truck cranes;

forklift trucks.

Especially recommended for heavy duty applications.

Easy installation on the piston without special tools.

Resistant to impact loads.

High wear resistance of the material ensures a long service life.


Technical specifications:

Pressure: < 250 bar at +60В°C - material type CO, Shore 93 A.

Pressure: < 400 bar at +60В°C - material type DO, Shore 98 A.

Speed: < 0,8 m/s.

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

Operating environment: mineral oil (see Table 1 on page 1.2.4).


Material:

Both sealing parts are made of polyurethane with different rigidity according to working pressure.

Material code: CQ (Shore 93 A with o-ring) or as an alternative to DQ (Shor 98 A with o-ring).


Installation:

It is necessary to observe the permissible value of the surface roughness (grinding of the landing groove) during the installation of the seal.

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).