“RESIDENTIAL” NATURAL GAS 2 STAGE REGULATION

In many Natural gas line installations, the gas supplier and or installer will utilize a two stage regulation process whereby, at the street’s main gas supply, they will install the first stage gas regulator, which would be at a higher pressure. This higher pressure is usually set at 2 psi or 5 psi and can be run for long distances and in a much smaller pipe size. Then, within a short distance from the pool heater, generally around 24 inches, they will install a second regulator, which is the second stage. This second stage regulator would be set at the minimum operating pressure for the heater. For “Natural Gas Pentair Pool Heaters” the minimum is 7 inches W.C.

Sheet1

In many Natural gas line installations, the gas supplier and or installer will utilize a two stage regulation process whereby, at the street’s main gas supply, they will install the first stage gas regulator, which would be at a higher pressure. This higher pressure is usually set at 2 psi or 5 psi and can be run for long distances and in a much smaller pipe size. Then, within a short distance from the pool heater, generally around 24 inches, they will install a second regulator, which is the second stage. This second stage regulator would be set at the minimum operating pressure for the heater. For “Natural Gas Pentair Pool Heaters” the minimum is 7 inches W.C.

Stage one High Pressure

2 PSI @ 1000 BTU Per CU. FT.
MAXIMUM EQUIVALENT PIPE LENGTH
Model 0 to 20 Feet 20 to 90 Feet 90 to 200 Feet
75 through 400 3/4 in. 1 in. 1-1/4 in.
5 PSI @ 1000 BTU Per CU. FT.
MAXIMUM EQUIVALENT PIPE LENGTH
Model 0 to 50 feet 50 to 100 Feet 100 to 200 Feet
75 through 400 3/4 in. 3/4 in. 3/4 in.

Stage Two Low Pressure

set at 7 in. W.C.
MAXIMUM EQUIVALENT PIPE LENGTH
Model 0 to 5 Feet 0 to 15 Feet
75 through 300 3/4 in. 1 in.
350 & 400 1 in. 1 in.
set at 7 in. W.C.
MAXIMUM EQUIVALENT PIPE LENGTH
Model 0 to 5 Feet 0 to 15 Feet
75 through 300 3/4 in. 1 in.
350 & 400 1 in. 1 in.

Contact Us

Your message has been sent. Thank you!
Valid mobile number Invalid mobile number