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Use of forged steel all welded ball valve and anti-deformation measures
Release date:2018/11/29 15:20:00 Number of clicks:76news source:
Forged steel all-welded ball valves are mainly used in the pipeline to cut, distribute and change the flow direction switch. Guocheng CGCV brand ball valve adopts a unique float design, so that the sealing ring is pressed against the float ball, and the pressure in the pipe ensures complete sealing inside and outside the valve. The forged steel all-welded ball valve stem has an anti-leakage structure, a PTFE self-sealing gasket and an O-ring at the bottom of the valve stem, and two O-rings and two PTFE gaskets on the top to ensure no leakage. This product is mainly applicable to the pipelines of various systems of thermal power stations, cutting or connecting the pipeline media.
    Forged steel all welded ball valve use:
     City gas: gas output pipelines, main lines and supply lines for each branch line.
     Central heating: large heating equipment output pipeline, main line, branch line.
     Heat exchanger: The pipeline and each circuit are opened and closed.
     Steel plant: various fluid pipelines, exhaust gas pipelines, gas and heat supply pipelines, fuel supply pipelines.
     Various industrial equipment: various heat treatment pipes, various industrial gas and heat pipes.
  The forged steel all-welded ball valve will produce dimensional deformation of the matching position of the middle valve body and the left and right body valve seat during the welding process. In order to prevent the welding deformation, effective preventive measures should be taken during the welding process, a total of 5 points, as follows:
1. A high-energy heat source should be used for welding.
2. Choose reasonable process parameters, groove form and low energy input.
3. Limit and reduce the heating area of the weld, and forcibly cool (water-cooled or copper pad) welded parts.
4, select fine wire, low speed, control the interval temperature of each layer is 50 ~ 80 °C.
5. Arrange a reasonable assembly and welding sequence.

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