§ 8-170. Sizes of piping to be used.

The following rules shall govern the size of gas piping to be used in piping buildings and structures:

(1)

Supply line to kitchen. Minimum diameter of supply line from meter to kitchen in houses, flats and apartments of:

a.

Less than six rooms, one inch.

b.

Six to nine rooms, 1¼ inches.

c.

Nine to 12 rooms, 1½ inches.

d.

For houses containing 12 rooms or more, or where conditions are unusual, the gas inspector shall be consulted for specifications.

(2)

Branch supply line to appliances. The diameter of branch supply pipes to all cooking ranges, stoves and water heaters, circulating, instantaneous, storage and automatic, shall be one commercial size larger than the inlet connection of the appliances served thereby, provided no pipe from supply line to appliance shall be less than three-quarter inch in diameter.

(3)

Underground piping. No piping laid underground shall be less than one inch in diameter.

(4)

Pipe to appliances using burners. Pipe serving hot air furnaces, boilers and gas burning appliances using burners, having two or three air mixers, shall be not less than 1½ inches in diameter, larger installations to be based on the same ratio.

(5)

Use of reducing coupling. When necessary to connect two sizes of pipe, a reducing coupling shall be used.

(6)

Prohibited connection. Gas must not be supplied from a smaller pipe to a larger pipe.

(Code 1968, § 9-40; Ord. No. 198, § 6(a)—(d), (h), (i), 6-7-1949)