The self-operated pressure regulating valve is a new type of regulating valve. This regulating valve does not require external energy knowledge to rely on the medium's own pressure changes to control the medium's new products. It has received attention and use from all walks of life, and the self-operated pressure regulation The valve does not need energy. Although the price will be higher at the time of purchase, once it is installed, it can bring great savings to the user. It is precisely because of this principle that the valve has played a role in the new product and can be used in non- Pressure control devices for media such as corrosive liquids, gases, and steam. Therefore, many customers also call it self-operated pressure regulating valves. At present, the development of control valves has made new progress. There will be more research and development of more powerful control valves and they will be used in thousands of companies. Households, today, Niwei Valve introduced its own characteristics of the structure of the self-operated pressure regulating valve.
The big feature of the self-operated pressure regulating valve is that it can work in an airless and non-electrical place. The pressure setting value can be adjusted freely during operation. Sensitive action, good sealing performance, decompression of various equipment gas, liquid, and steam media in automatic control system, voltage regulation (for valve pressure regulation) or pressure relief, voltage regulation (for valve pressure regulation) Automatic control valve. According to the user's different working conditions, different spool structure types and different actuators can be selected to achieve excellent results.
Self-operated pressure regulating valve performance and features:
1 , can set the flow according to the design or actual requirement, can automatically eliminate the pressure fluctuation of the system and keep the flow unchanged;
2. Reduce the design workload and do not need to perform tedious hydraulic balance calculations on the pipe network;
3 , to solve the pressure difference at the proximal end. The contradiction of small pressure difference at the far end;
4 , to eliminate the redistribution of the flow when the heat source of the multi-heat source pipe is switched;
5 , to overcome the system of hot and cold inequality. Improve heating ( cooling ) quality;
6. The flow display values ​​are randomly calibrated on the test bench with flow rate ( m3/h ) .
7 , reduce the amount of system circulating water, reduce system resistance;
8 , to reduce the difficulty of network adjustment, the complexity of the network adjustment work to simplify the flow distribution.
Wenzhou Niwei Valve Technology Division