Let’s take a look at what kind of valve this is and how it works.
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I saw it at the site today. As a newbie, I have never seen this kind of valve before. Please give me some advice.
Pneumatic diaphragm valve, the diaphragm in the cavity moves up and down to block or open the channel
Pneumatic diaphragm valve, the valve is opened by the power source, and the valve returns by its own spring
The two words written above are: Normally closed?
Pneumatic diaphragm valve opens when receiving air and closes when air fails. There are certain range requirements for instrument air pressure
Sanitary single-acting (normally closed) air-opening pneumatic diaphragm valve. The intake valve of the air inlet is opened, and the gas shut-off spring return valve is closed.