§ 54.36 SIZE OF FITTINGS.

   (A)   The size of the pipe to be used in piping buildings for gas (other than for the supply of gas engines, instantaneous automatic hot water heaters, hot air furnaces and low pressure steam or circulating water boilers for heating) shall depend upon the number of 3/8 inch openings to be supplied thereby and upon the length or run of the pipe from the supply pipe to the opening. In determining the size of the pipe and maximum length of run thereof for a given number of 3/8 inch openings, the following table shall control:

Openings
Top size of pipe inches, under length of pipe in feet
	3/8		3/4	1	1	1	2	2	3
1	20	40	70	100	150	200	300
2		20	60	100	150	200	300
4		10	50	80	150	200	300
6			40	70	150	200	300	400
8			30	60	120	200	300	400
10				50	100	170	300	400	500
14				40	90	140	300	400	500
18				30	70	120	275	400	500
22					50	100	250	350	450
30					30	70	225	300	400
40					25	50	190	250	350
50						40	160	225	300
60						30	130	200	275
76						25	100	175	250
100							75	150	225
126							50	125	200
150								100	150
200								75	100
250								50	75
300									50
400									30

 

   (B)   In applying the foregoing table, the following rules shall prevail, to-wit: one stove outlet, -inch opening; one gas log or other grate fire, 3/4-inch opening; one kitchen range, 3/4-inch opening; one kitchen boiler heater separated from range, -inch opening.

(`85 Code, § 20-64)