What does this cut-off valve mean?
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What do HS, HSV, S, R, IA, and ATM on the left side represent respectively? Are these two valves? Solve.
There is a valve HV37101; HS stands for control, HSV is an electromagnetic valve, IA refers to instrument air, ATM leads to the atmosphere. R might indicate a function with reset capability, and S could denote setpoint control. Take a look at the legend next to this PID to see if there are any specific explanations
There is a valve HV37101; HS stands for control, HSV is an electromagnetic valve, IA refers to instrument air, ATM leads to the atmosphere. R might indicate a function with reset capability, and S could denote setpoint control. Take a look at the legend next to this PID to see if there are any specific explanations
So are these valves two solenoid valves?
This HV37101 is likely a ball valve, while HSV is a solenoid valve
Two three-way solenoid valves + shut-off ball valves: HS denotes control; HSV denotes solenoid valve; IA denotes instrument air; ATM denotes one standard atmosphere; R denotes reset button; S should denote the control setpoint
It’s a solenoid valve with an RS reset setting added; so check the legend at the beginning of the drawings to see if these two annotations are present
That single S denotes the solenoid coil, while the others are as described above.
This post was last edited by rattki@china on 2020-10-10 at 13:54 HS: Soft switch on the DCS screen； S: Coil ； R is the interlock reset function ； HSV: Manual valve with interlock switch ； IA: Instrument air ； ATM: Atmosphere ； ZSO/ZSC: On/off status of the valve
Is this one with a chain? I don’t see any chain wire.
Is this one with a chain? I don’t see any chain wire.