P&ID Symbol Pilot Operated Reducing Regulator

[TTitsch]

Does anyone show the pilot regulator in a pressure reducing regulator with the pilot ties to the downstream line? In the ISA 5.1 document, the pilot device is only shown for the pressure relief operator. Thanks for any feedback.

 

[JLSeagull]

I don't try to differentiate pilot regulators from non pilot regulators on the P&ID's. If you want just write pilot above the bubble.

 

[xnuke]

I concur with JLSeagull. If the pilot is integral to the device, I don't explicitly show it. I do show the internal or external pressure sensing line on the downstream side connected to the actuator, but that's it.

xnuke
"Live and act within the limit of your knowledge and keep expanding it to the limit of your life." Ayn Rand, Atlas Shrugged.
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.