What kind of valve is this?
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I would like to ask everyone, what kind of valve is this and what is its specific function?
Pneumatic diaphragm control valve, which regulates flow by controlling the degree of opening
The naming of this valve consists of two parts: the name of the valve body, plus the name of the actuator on it, which together complete the designation. The actuator for the aforementioned section is a pneumatic diaphragm type with regulation function. Common actuator types include manual, electric, and cylinder-piston types. It is not possible to see the internal structure below; some of them are globe valves and gate valves. It seems to mean a stop valve. Combine the two parts and then give it a name that everyone can understand :)
1. The actuator in the image is a pneumatic straight-stroke type. 2. The valve is installed at the location indicated, that is, at the flange at the bottom. 3. Check that there is nothing in the middle of the bracket; that is where the control switch is located. So this is the pneumatic control valve for the lower section.
Pneumatic diaphragm double-seat control valve, fail-safe shut-off.
The control valve can be repaired and adjusted online; it features an inverted structure, allowing for the replacement of its internal components online.