What kind of valve is SDVRV?
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What kind of valve is SDVRV?； Can the shut-off valve be adjusted?
The icon appears to be that of a flanged pneumatic control valve; the sequence of characters SDVRV 1601B is likely the valve identifier. I will check the valve data sheet corresponding to the drawing, as it contains the identifier parameter. The tag number is the identity number of a valve in an automatic control system
Looking forward to the original poster providing an answer, let’s learn together. I guess it’s a ball valve, with the solenoid valve as an accessory. During the programming process, this valve is in the open or closed position at regular time intervals.
Based on my work experience, this valve should be a pneumatic shut-off valve (SDV); the specific type of RV depends on the PID design.