11
TYPICAL GAS CONNECTIONS
Consistent gas pressure is essential at all gas connections. It is
recommended that a 3/4" (19.05 mm) pipe gas loop be installed
in the supply line servicing a bank of dryers. An in-line pressure
regulator must be installed in the gas supply line (header) if the
(natural) gas pressure exceeds 13.0 in WC (3.23 mb) pressure.
A minimum 1/8" N.P.T. plugged tap, accessible for a pressure
gauge connection, must be installed in the main gas supply line
immediately upstream of the dryer.
Test all connections for leaks by brushing on a soapy
water solution (liquid detergent works well).
3/4" x 1/2" x 1/2" TEE
19.05 mm x 12.7 mm x 12.7 mm
SEE IMPORTANT NOTE
3/4"(19.05 mm) NIPPLE
(36" [91.44 cm] MINIMUM)
UNION SHUTOFF
1/2" x 37 1/4" NIPPLE
12.7 mm x 94.62 mm
1/2"(12.7 mm) x 90 ELBOW
UPPER TUMBLER
GAS CONNECTION
LOWER TUMBLER
GAS CONNECTION
1/2"(12.7 mm) UNION
1/2"(12.7 mm) CLOSE NIPPLE
1/2"(12.7 mm) UNION
1/2"(12.7 mm) CLOSE NIPPLE
TYPICAL NATURAL GAS INSTALLATION
GAS LOOP
GAS SHUTOFF
VALVE
GAS SERVICE LINE TAP
GAS WATER HEATERS
DRYERS
GAS METER
INLINE PRESSURE REGULATOR
(ONLY WHEN LINE PRESSURE
EXCEEDS 13"[32.34 MB]
WATER COLUMN)
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