What are the commonly used shut-off valves

1) Straight through globe valve

2) Angle globe valve; In angle globe valves, the fluid only needs to change direction once, so that the pressure drop through this valve is smaller than that of conventional globe valves.

3) Direct flow shut-off valve; In direct flow or Y-shaped globe valves, the flow path of the valve body is inclined with the main flow path, which reduces the degree of damage to the flow state compared to conventional globe valves, and therefore reduces the pressure loss through the valve.

4) Plunger type globe valve: This form of globe valve is a variant of a conventional globe valve. In this valve, the disc and seat are usually designed based on the plunger principle. The valve disc is polished into a plunger and connected to the valve stem, and the sealing is achieved by two elastic sealing rings sleeved on the plunger. Two elastic sealing rings are separated by a sleeve ring and the sealing ring around the plunger is pressed firmly by the load applied by the valve cover nut on the valve cover. The elastic sealing ring can be replaced and can be made of various materials. The valve is mainly used for "opening" or "closing", but it is equipped with a special form of plunger or special collar, which can also be used to regulate flow.