News

Hydraulic machinery related seals

Update:2018-08-11

The hydraulic seal is a type of lip seal, and the leakage is extremely small. The leakage of the hydraulic seal is extremely small and has a good sealing effect.

What are the characteristics of the guide tape and the support ring of the hydraulic cylinder seal?

The service life of the guide tape and the support ring directly affects the using effect and life of the piston seal and the piston rod seal, so the requirements for the guide tape and the support ring are also high, such as small friction coefficient, high hardness and long service life.

What are the structures and characteristics of hydraulic cylinder seals?

Commonly main sealing structures are U seal, Yx seal, PTFE compact seal, DAS compact seal, Vee packing and etc. There are also guide rings (support rings), dust seals, static seals and other auxiliary seals. These forms can also be used in combination to achieve the required performance.

Advantages of the seal:

(1) The seal should have good sealing performance under working pressure and a certain temperature range, and the sealing performance can be automatically improved with the increase of pressure.

(2) The friction between the seal device and the moving member is small, and the friction coefficient is stable.

(3) The seal has strong corrosion resistance, is not easy to aging, has long working life and good wear resistance, and can automatically compensate to a certain extent after wear.

(4) The structure is simple, easy to use and maintain, and the seal has a longer life.

Is the rod seal or piston seal used on the piston of the hydraulic cylinder seal?

In general, the piston of the hydraulic cylinder is sealed with a piston seals