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Tungsten carbide valve seat are specifically developed to resist wear at high temperatures for wellhead control valve ball. The material is based on wear-resistant carbides that are thermally stable at exhaust valve seat operating temperature. These kind valve parts can be used in float control pumps for oil and gas and some other hostile enviroment.Mediums include gas,water,oil,sand,wax,asphalt and etc.
The role of the valve seat and valve ball is to control the oil flow unidirectionally, working medium include gas,water,oil,sand, wax, resin, asphaltene and other ingredients, which is a random variation of non homogeneous phase media.
It is turned on and off alternately at a certain frequency cycle, extracted liquid carrying some mechanical impurities at a very high speed, violently washes the seat, and in the meanwhile, there is big impact between the seat. the ball and the cover,In high speed, violently washes the seat, and in the meanwhile, there is big impact between the seat. the ball and the cover.