Type USH can be used for piston and rod seals. These seals have a smaller cross-section and fit into an integral groove. The Nitrile and Viton materials used guarantee a wide operating temperature range, in fact it is a smaller cross-section UPH type.
Ring Seals USH Application:
Working pressure: ≤21Mpa
Operating temperature:
Standard type (NBR) -30℃~+100℃
Heat-resistant type (FPM) -10℃~+150℃
Reciprocating speed: ≤0.5m/s
Medium: (NBR) general petroleum-based hydraulic oil, water glycol hydraulic oil, oil-water emulsified hydraulic oil (FPM) general-purpose petroleum-based hydraulic oil, phosphate ester hydraulic oil.
Note: To prevent extrusion, it is recommended to install a retaining ring on the heel of the seal when the pressure is above 14Mpa.
Install:
Such Piston Sealing and Rod Seals shall have axial clearance) see columns h and H in the table). To avoid damage to the seal…