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Application: This valve is used to maintain the pressure of water supply in upper course on a fixed value. When pressure in upper course is higher than preset value, main valve will open promptly for decompressing; if lower, and then main valve will close to maintain pressure. Characteristics: ...

Application and characteristics: Installed on water supply pipes for replacing electric gate valve and electric butterfly valve. No electric device equipped for energy saving and convenience maintenance. And it can be also remotely controlled for realize interconnected control of pump valve. ...