46results about How to "With pressure relief function" patented technology

The utility model discloses a valve seat, ball valve with pressure relief function, wherein, valve seat with pressure relief function contains: valve seat support ring, valve seat support ring sets up in the ball valve of outside, one side of valve seat support ring is equipped with pressure relief hole, and the other side of valve seat is equipped with pressure relief groove, and pressure relief groove communicates with pressure relief hole, adjustable pressure relief module, adjustable pressure relief module sets up in pressure relief groove, is used for when the valve cavity of ball valve reaches setting pressure value, lets pressure relief groove and pressure relief hole be in the intercommunication state, carries out pressure relief, when the valve cavity of ball valve does not reach setting pressure value, lets pressure relief groove and pressure relief hole be in the non -intercommunication state, does not carry out pressure relief, in the utility model, pressure relief pressure can be adjusted, can be based on the working condition of customer use, and the pressure relief pressure of self -defined adjustment meets the use demand of user.