Trunnion Ball Valve Torque Value
|Class 150||Class 300||Class 600||Class 900||Class 1500||Class 2500|
valve,Ball Valve,Torque Value
World demand for industrial valves is projected to climb 4.3 percent annually through 2019 to $98.5 billion. Market advances will be stimulated by growth in chemicals and other process manufacturing output, electric power generation, and construction activity in a generally healthy economic environment.
The valve is controlled by the combination of valve body and disc. When the valve is closed, the pressure difference at the inlet and outlet ends is different. At the moment when the valve is opened, the existence of pressure difference will cause a huge instantaneous impact on the valve components and pipelines when the medium passes through the valve, resulting in valve vibration and noise. Vibration has an impact on the sealing performance, service life and other testing equipment of valves and pipelines connected to them. Under some specific high-pressure conditions, especially the valves used in high-pressure pipeline system, their vibration is particularly severe, which can not meet the requirements of smooth operation, small vibration amplitude and low noise.
Casting is an integral casting of material in the die. Its stress distribution is uniform and there is no restriction on the direction of compression. The forging is made of the same direction of force, its internal stress has a directional, can only bear directional pressure.