hazardous location

[dchajzus]

on a valve operator that is in a class one division 2 location that vents only when operated(not a continuous vent) instrument gas to operate under low pressure (under a 100psi) is the electrical fittings used in this location within 3' of the venting need to be class one div 1 fittings or can we use class one div 2 fittings?

 

[petersonra]

on a valve operator that is in a class one division 2 location that vents only when operated(not a continuous vent) instrument gas to operate under low pressure (under a 100psi) is the electrical fittings used in this location within 3' of the venting need to be class one div 1 fittings or can we use class one div 2 fittings?

the fittings used have to be suitable for the area classification.

maybe the real question should whether an area around the vent should be reclassified as division 1.

 

[rbalex]

...
maybe the real question should whether an area around the vent should be reclassified as division 1.

It should be. The real question is the Division 1 envelope's hazard radius. Depending on the standard used as the basis it could be as much as 10' where the process pressure involved is 100 PSI.