What factors will interfere with the production of fully welded ball valves

The strength test of the welded ball valve uses water as the medium to conduct the strength test. It is necessary to weld high pressure caps at the two ends of the welded ball valve to make the ball of the ball valve in the open position of 45 degrees, and use the pressure test valves on the sleeves on both sides to weld the ball valve. Inject water into it to increase the pressure to 1.5 times the nominal pressure of the welded ball valve, and keep the pressure for 15 minutes. If there is no leakage of the medium, it means that there is no leakage as normal.

How to make the fully welded ball valve work well:

1. A heat source with high energy should be used when welding a fully welded ball valve.

2. Choose reasonable process parameters, groove form and low energy input.

3. Limit and reduce the welding heating area, and forced cooling (water-cooled or copper backing plate) welded parts.

4. Use fine welding wire, low speed, and control the interval temperature of each layer at 50～80℃.