So I guess they are upgrading the gas service outside our building here.
They claim they are upgrading it from 1/2 a pound or a pound to 50
pounds per square inch. They are saying they need to put a regulator
INSIDE our building to step the 50 pounds per square inch down to 1/2 a
pound per square inch.
My question is.. is this even safe? TO run 50 pounds per square inch
into 1/2 a pound per square inch device? With the regulator inside the
Sure, 50 psi is really low for piping. Your water lines may carry up to 100
psi, the air line at the gas station is probably 110 to 130 psi. My entire
plant is piped with 110 psi steam that drops to 50 at a regulator, then to
25 at the machines.
When we put in a new boiler, the gas company had to upgrade the gas lines
for more volume and higher pressure. You should be there when they weld on
the lines. I moved away for that treat.
The primary side of the gas meters here in Arizona are measured in pounds
the secondary side is measured in ounces for residences.
You need to call and clarify with them on this.
FYI they get to put it almost anywhere they decide. They are the utility
Yes. Usually they will put them outside, as it is easier to meter read
and repair, but they can go inside. The regulator drops the pressure
back down for the inside piping, so it works just like it always has.
The regulator is a simple mechanical device, they are very reliable.
And there should be a pressure safety valve and a dump pipe. In the
Rochester NY area, th ere are safety valves on every home, and a dump pipe
in case the system is over pressurized.
Back in the 50's we had a system over pressurized, and hurt a lot of people.
Christopher A. Young
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