The basic knowledge of the valve
Pu Gloves,Water-Based Pu Palm Gloves,Nylon Pu Palm Gloves Rudong Rizhisheng Safety Products Co., Ltd. , http://www.nt-gloves.com
Valve is used to control the valve body opening and closing parts of the opening to regulate the flow of media, the media pressure is reduced at the same time by virtue of the role of the pressure valve to adjust the opening and closing pieces of the opening and closing to maintain the valve pressure in a certain range , And in the valve body or after the injection of cooling water, the medium temperature decreases, this valve is called decompression valve. The characteristic of this valve is to keep the outlet hearing pressure and temperature within a certain range under the condition that the inlet pressure is constantly changing. Pressure relief valve according to the structure can be divided into film, spring film, piston, lever and bellows; according to the number of seats can be single-seat and two-seat; according to the location of the valve can be divided into positive Active and reactive. Pilot-type pressure reducing valve When the output pressure of the reducing valve is high or the diameter is large, the pressure is directly regulated by the pressure-adjusting spring, the spring stiffness must be too large. When the flow rate changes, the output pressure fluctuates greatly. The structure size Will also increase. To overcome these shortcomings, pilot-operated pressure relief valves can be used.