Author Topic: Propane Line Pressure Regulator  (Read 305 times)

Offline Porcupinepuffer

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Propane Line Pressure Regulator
« on: December 19, 2017, 10:37:28 AM »
I was just going through the codebook and noticed 5.1.4.

I never remembered this code before, but it caught my eye because I can relate it to some propane jobs I've done.

Based on the definition, I'm assuming the line pressure regulator would have to be the second stage regulator when we're doing a propane job and we step down with two separate regs? I have found myself entering the dwelling at 9 or 10' above ground (to enter a garage and be safe and legal for vehicle protection) and I install this regulator at an appropriate height for service outside.

I know for a fact that my regulator was not within 3' of where it enters... Trying to make it meet this code would make for a pretty goofy install and I can't really understand the logic behind such a rule.

Has anyone had to deal with this, or have any further insight?


Offline Admin

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Re: Propane Line Pressure Regulator
« Reply #1 on: December 19, 2017, 08:28:09 PM »
I think Clause 5.1.4 refers to a regulator installed within (indoors).  In your case you installed the regulator outside so this Clause would not apply.  They probably want to reduce the amount of gas pipe indoors if it’s carrying high pressure propane.

Quote
Clause 5.1.4 - For applications using propane, a line pressure regulator installed within a one- or two-family dwelling or row housing shall not be located more than 3 ft (1 m) from the point where the propane supply enters the dwelling.

Quote
Clause 5.2.1.5 - A line pressure regulator shall have
(a) a manual shut-off valve installed upstream of the regulator; and
(b) either a line relief device or an overpressure protection device. The regulator vent and relief device vent shall terminate outdoors.

Quote
Line pressure regulator — a gas pressure regulator intended for installation in a gas distribution system between the utility service regulator or 2 psi propane regulator and gas utilization equipment.

Offline slo-115

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Re: Propane Line Pressure Regulator
« Reply #2 on: December 19, 2017, 08:31:45 PM »
100% certian it refers to when a reg is installed inside rhe building. Which no one does anymore, some old lp systems have indoor regs.

Offline Porcupinepuffer

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Re: Propane Line Pressure Regulator
« Reply #3 on: December 20, 2017, 03:55:15 AM »
Ok good. That theory makes sense. It's just such a vague description for a regulator and there's really not much information on it. Maybe I'd find more in the propane storage and handling.