Daily standard cut-off valve manufacturer

The daily standard globe valve is only suitable for fully open and fully closed, and is not allowed to be adjusted or throttled. The Japanese standard globe valve belongs to the forced sealing type valve, so when the valve is closed, pressure must be applied to the valve disc to force the sealing surface not to leak. When the medium enters the valve from below the valve disc, the resistance that the operating force needs to overcome is the frictional force between the valve stem and the packing, as well as the thrust generated by the pressure of the medium. The force on the daily standard globe valve is greater than that on the day standard globe valve, so the diameter of the valve stem should be larger, otherwise the valve stem bending fault may occur.

purpose

Widely used in various fields such as municipal construction, agricultural water conservancy, thermal power generation, petrochemicals, metallurgy and mining, fire protection and environmental protection, food, shipping, medicine, and textiles.

2) DC globe valve: In DC or Y-shaped globe valves, the flow path of the valve body forms a diagonal line 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.

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

4) Piston type globe valve: This type of globe valve is a variation of conventional globe valves. In this valve, the valve 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 fitted on the plunger. Two elastic sealing rings are separated by a ring, and the sealing ring around the plunger is pressed firmly by the load applied to the valve cover by the valve cover nut. The elastic sealing ring can be replaced and made of various materials. This valve is mainly used for "opening" or "closing", but it is equipped with a specially designed plunger or special ring, which can also be used to adjust the flow rate.