Universal piston and rod hydraulic seal USH
USH is a symmetrical hydraulic seal that can be used for both piston and rod in the hydraulic cylinder. This type of seal has a smaller cross section than UPH and can fit in the integral groove. It can be made of nitrile rubber or fluororubber, which provides a wider range of operating temperature.
Operating pressure: ≤210 bar. To prevent extrusion, when the pressure is higher than 150 bar, it is recommended to use a back-up ring at the base of the seal.
Operating temperature:
Standard type (NBR material): -30°C ~ +100°C
Temperature resistant type (FKM material): -10°C ~ +150°C
Reciprocating speed: ≤0.5 m/s
Media:
NBR - mineral hydraulic oils, water-glycol hydraulic oils, emulsions
FKM – mineral hydraulic oils, phosphate ester hydraulic oils
Installation:
This type of seal must have an axial clearance (please see dimensions h and H). To prevent damage to the sealing lip, avoid using sharp edges during installation.
Hydraulic piston and rod seal USH-28 28x36x5 NBR90 up to 210 bar KVK/China
Product data
The hydraulic seal USH has a symmetrical design and is suitable for both piston and rod.
Ød=28 mm ; ØD=36 mm ; h=5 mm ; ØD1=35 mm ; HA=5.7 mm ; HB=7.7 mm ; r=2 mm
Material: NBR90
Application range (the following limit values cannot appear at the same time):
Pressure: ≤ 210 bar; when the pressure is higher than 150 bar, it is recommended to use a back-up ring
Speed: ≤ 0.5 m/s
Temperature: -30°C ~ +100°C
Media: mineral-based hydraulic oils and emulsions; not suitable for environmetally-friendly oils (bio oils)
Manufacturer:
Zhongxingshun Sealing Products Factory
