Shutdown instrumentation isolation on gas fired boilers, heaters, etc.

D

Thread Starter

Dillon Abdool

Hello All,

Can anyone advise on the accepted practices for installing isolation valves on tapping points or at transmitters/switches for measurements used for boiler shutdown/trip? I tried looking at the NFPA 85 but could not find anything definite.

Maybe I'm looking at the wrong standard/specification. Please let me know where I should look.
 
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