I have a few questions regarding valve tag numbers?
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Does everyone know how to write the following codes? Pneumatic on/off valve: Open: Closed: Fully closed: ZSC Fully open: ZSO Pneumatic control valve (4-20ma): Control: Feedback:
The command outputs for pneumatic on/off valves in the SIS system are generally denoted as UZV-10101 or SDV-101010; this is an abbreviation for \"shut down valve\". Closed position: ZZSC; Open position: ZZSO. Pneumatic control valves (4-20ma): Control signals: F/P/L/*CV-10101; FCV-10101 is an abbreviation for \"flow control valve\". Feedback signal: ZI-10101
It is recommended to read HG/T20505-2014 in its entirety. Everything you want to know and can’t imagine is there waiting for you
I downloaded it and checked, but found no relevant content
Similar to electric or pneumatic control valves, no specific formulation is given
Can it be understood this way: Control valve (4-20ma): Control (output): FCV-10101; Feedback (valve position): FCV-10101-ZI
We usually use FV-XXX and FVT-XXX – it’s simple and easy to understand:lol:lol
Adding the letter “c” to the tag number of the control valve is incorrect. Please refer to Note 23, item e, in Table 4 of HG/T20505-2014. Regarding the valve position numbers in the SIS system, it is recommended to refer to Section 6.3 of HG/T20505-2014; do not be misled by the notation used by certain organizations.