Valve bodies and seats (patent product)：

A) Main material is made up of high quality low carbon bearing steel forging.

B) Through the strict and precious controlling carburi zing process, which make its whole hardness more than 60 HRC so that the whole unit has high toughness.

C) Using high strength, wear resistance, elastic engineering plastics as a buffer layer that can avoid the distortion of body and seat after rubber wearing because of contacting directly.

D) After the repeated experiment on body rubber, which has been overcame three major fatal flaw of the rubber: heat resistance, poor water resistance and lower toughness. At present, our rubber can reach 140 degrees. It has good water resistance, high toughness. So that these problems have been solved thoroughly to meet the needs of work field.

E) In a word, compared to domestic product, the service life of our company's valve bodies and seats have improved by 2 or 4 times, which has reached or exceeded similar products in USA.

Note: We can produce various types of oilfield drilling mud Ceramic liner at your request.