Looking for a NG fuel pressure regulator

pcampbell · 03-04-2010, 07:51 AM

I am looking for an INDOOR rated natural gas fuel pressure regulator that is preferably fixed at 4" 4.5" or 5" W.C. or adjustable with 1/2" or 3/4" connections.

Can anyone suggest where I could find this?

Marty S. · 03-04-2010, 05:52 PM

Most common one in use here is maxitrol. Should be able to pick one up at any plumbing/HVAC supply house that sells to the general public. If that fails your local shop probably has a few on the shelf. For indoor use you just leave the vent limiter in place.

pcampbell · 03-05-2010, 06:14 PM

Thank you Marty.

I have an oven I need to drop down to either 4" or 5" W.C. according to the manual. It actually says 5" on the oven, and 4" on the manual. I think coming off the meter is more like 7" and there is obviously too much pressure judging by the burner flame.

What I can't understand is the difference between these 2 Maxitrol regulators.

One is 2X the price, and one says "Max load: 40,000 BTU/h" but the "capacity" of 250,000 BTU/h. I am not sure the difference between capacity and load. The oven will use 60,000 BTU/h. One is a poppet and other is straight through flow.

http://www.grainger.com/Grainger/items/4E227?Pid=search
http://www.grainger.com/Grainger/items/4E226?Pid=search

It sounds like I may need the pricier one?

**beenthere** · 03-05-2010, 09:32 PM

That max load is probably a typo.
Probably should be min load.