In butterfly valves, Triple Eccentric Butterfly Valve are widely used because of their good sealing performance. The good sealing property of Triple Eccentric Butterfly Valve is inseparable from the processing method of its sealing surface. Below is a small tape of Beijing Ruitou to learn about the processing technology and tooling of Triple Eccentric Butterfly Valve.
Processing Technology of Triple Eccentric Butterfly Valve

According to the analysis of the structural characteristics of the three-eccentric metal hard-sealed butterfly valve, the sealing ring of the butterfly plate assembly is a combination of stainless steel plate and asbestos plate, and the sealing ring of the valve body is a hard alloy with high hardness. It is difficult to control the feed rate, and it is not easy to be processed and formed at one time, and the roughness of the machined surface is very high. In order to ensure the processing requirements, the process is roughing of valve body or butterfly plate assemblies - carbide overlaying of valve body seal ring - heat preservation for 12h - heat treatment to eliminate thermal stress - sealing surface of rough turning of upper tooling - sealing surface of finishing turning of upper tooling - grinding face of upper grinding head - boring shaft hole - strength test - sealing test of valve body and butterfly plate assemblies.

Machining Tool for Triple Eccentric Butterfly Valve
The sealing ring of butterfly plate assembly and the sealing surface of valve body sealing ring (processing surface) are inclined conical surfaces. The angle between the cone center line and the space vertical line of the valve body seal ring is 8 degrees, and the angle between the cone center line and the space vertical line of the butterfly plate assembly seal ring is 8 degrees. Therefore, the processing tooling for the valve body seal ring and the processing tooling for the butterfly plate assembly seal ring are designed.
Above is the processing technology and tooling of the Triple Eccentric Butterfly Valve arranged by Ruito, for your reference only. If you need to buy Triple Eccentric Butterfly Valve, please call.