1. Firstly, close the stop valve in front of the pressure regulating valve and open the stop valve after the pressure regulating valve to produce the natural environment of bottom pressure in the middle and lower reaches; secondly, turn the adjusting screw in the opposite direction to the uppermost position (relative minimum inlet and outlet working pressure), and then close the stop valve after the pressure regulating valve; then gradually open the stop valve in front of the pressure regulating valve until it is fully opened; and then gradually turn it clockwise Turn the adjusting screw to adjust the working pressure at the inlet and outlet to the required working pressure (based on the gauge pressure behind the valve); after adjustment, tighten the lock nut and open the back stop valve of the pressure regulating valve; finally, if the working pressure at the inlet and outlet is higher than the set working pressure during adjustment, it must be gradually adjusted again from the first step, that is, only from the bottom pressure to the high pressure. After many processes, the pressure regulating valve can be adjusted.
2. The working pressure at the inlet and outlet of the pressure regulating valve can be set according to the valve spring yellow. The principle of 200X type pressure regulating valve (adjustable pressure regulating valve): when the gate valve supplies water and discharges water from the inlet end, the water flows through the needle valve into the main control room of the main valve, and the working pressure at the inlet and outlet goes to the pilot valve according to the hose effect. When the working pressure of inlet and outlet is higher than the preset value of pilot valve, the pilot valve will be closed. When the main control room terminates the drainage pipe, the main valve controls the working pressure in the room to rise and closes the main valve, so the working pressure at the inlet and outlet will not rise again.
3. When the working pressure at the inlet and outlet of the gate valve drops to the working pressure set by the pilot valve, the pilot valve opens and the main control room drains to the middle and downstream pipes. Because the software discharge of pilot valve system exceeds the inlet flow of needle valve, the working pressure of main control room of main valve decreases. The inlet working pressure makes the main valve open. Under the stable condition, the main control room seepage, drainage pipeline, the main valve opening will not change, the inlet and outlet working pressure is stable, adjust the pilot valve spring yellow can set the inlet and outlet working pressure.
4. The pressure regulating valve is a kind of professional equipment which can automatically reduce the pipeline pressure. Its function is to reduce the material with higher working pressure to the given working pressure after giving the relief pressure range. It can reduce the high liquid pressure of the pipeline in front of the valve to the required level of the pipeline behind the valve. The main mode of transmission here is water. The pressure regulating valve is generally used in multi-storey buildings, areas where the pressure of urban water supply pipeline network is too high, coal mines and other places, so as to ensure that each tap water point in the water supply and drainage system software can get appropriate service item pressure and total flow. Since the water loss rate and consumption level are basically positively related to the pressure size of the water supply and drainage system software, the pressure regulating valve can improve the operation status of the system software and potentially save water. According to the investigation, the actual water saving effect is about 30%.
China SNS Pneumatic was founded in 1999 which now has been the leading supplier of pneumatic components in China. The company covers an area of 30000 ㎡, having 5 production bases and more than 20 subsidiary companies with more than 1000 employees.SNS has passed ISO9001 and 2000 Quality Management System Certification because of its good service and high quality. By now there are more than 200 agents and distributors all over the world and we are looking forward to approach more international market.
Company: China SNS Pneumatic Co., Ltd.
Address: No.186 Weiliu Road, Economic Development Zone, YueQing, Zhejiang, CHINA
E-mail: zoe@s-ns.com
Phone: 057762768118
https://www.sns1999.com/
Post time: Apr-14-2021