Whirlpool 4322452 manual Distribution of Natural GAS, 25 To 60 Pounds Pressure Main

DISTRIBUTION OF NATURAL GAS

Utility companies send natural gas through underground pipes, called “mains.” The gas in these mains is pressurized at between 25 and 60 pounds-per-square-inch (psi).

Branches carry the pressurized gas to the various buildings, and are connected to gas meters.

The meters decrease the main’s gas pressure to 7 inches water column pressure (1/4 pounds) for use by the appliances inside the buildings (see Figure 1-6).

DISTRIBUTION

REGULATOR

25 To 60 Pounds Pressure “Main”

SERVICE	SERVICE
REGULATOR	REGULATOR
7" WCP (1/4 Pound Pressure)

Figure 1-6

A gas piping system is able to supply gas to all of the appliances in a building at one time. Ranges generally operate on gas pressure rated at 4 inches water column pressure. Each appliance usually has its own pressure regulator to more accurately meet the designed requirements (see Figure 1-7).

Gas Main 25 - 60 Pounds	7" WCP (1/4 Pound)
	In-House Gas Supply Line
		4"
	Appliance
Gas Meter	Regulator
(Service Regulator)		Range
				Dryer
			Furnace
	Water
	Heater

Figure 1-7

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