SPRINKLER DRAIN MANUAL VALVE

[acid75070]

I am starting a new industrial remodel job and on the exterior wall there is a fire protection drain valve that you turn manually. My question is how close to the valve can I get with a 2500 amp 480 volt 3 phase switch gear.

 

[kwired]

Valve alone - IDK, NEC wouldn't have any restrictions I am aware of.

Another consideration is whether this is just a valve in a pipe line or if it is on end of piping and drains into open space after the valve - that may make a difference in needed water infiltration protection of equipment in that vicinity.

 

[mgookin]

I am starting a new industrial remodel job and on the exterior wall there is a fire protection drain valve that you turn manually. My question is how close to the valve can I get with a 2500 amp 480 volt 3 phase switch gear.

I'd do an RFI and get it in writing so it's on someone else.

If you snap and post a picture we may be able to help you further, but again, it's better to put the responsibility for these things on those doing the work under that trade.

 

[ADub]

Sounds like it might be an inspection loop. If that's the case it's nothing to worry about. Fwiw I've never seen sprinkler system drains terminate anywhere other than outside.


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[gadfly56]

Sounds like it might be an inspection loop. If that's the case it's nothing to worry about. Fwiw I've never seen sprinkler system drains terminate anywhere other than outside.


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At my former employer, service techs frequently found them terminated in a janitor's slop sink. It's amazing how high the water will bounce of the bottom of the sink when that 1/2" orifice is wide open. hmy: