CAPACITIES

Series 120 thru 126 Air Capacity SCFM				Series 120 thru 126 Air Capacity Nm3/hr
Slope	1.037	1.192		Slope	1.037	1.192
psig	3/4” Seat	1” Seat*		barg	3/4” Seat	1” Seat*
5	24	27		0.2	36	42
10	29	33		0.5	44	51
15	34	39		1	57	65
20	39	45		2	82	95
25	44	51		3	110	127
40	61	70		4	138	159
50	72	84		5	166	191
75	101	117		6	194	224
100	129	150		7	223	256
125	158	183		8	251	288
150	186	216		10	307	353
175	215	249		12	363	417
200	243	282		14	419	482
STEAM
Series 120 thru 126 Steam Capacity #/Hr				Series 120 thru 126 Steam Capacity kg/hr
Slope	2.91	3.358		Slope	2.91	3.358
psig	3/4” Seat	1” Seat*		barg	3/4” Seat	1” Seat*
5	66	85		0.2	27	31
10	81	104		0.5	33	38
15	95	123		1	43	49
20	110	141		2	62	71
25	124	160		3	83	95
40	171	220		4	104	120
50	203	261		5	125	144
75	283	364		6	146	168
100	363	468		7	167	192
125	443	571		8	188	217
150	523	674		10	230	265
175	603	777		12	272	314
200	683	880		14	314	363
* 1” Seat is Non-Code
Set pressures not limited to this chart. Specify when ordering. Capacities are at 3 psig or 10% (whichever is greater) over set pressure. Set pressures below 15 psig (1.03 barg) are NON-Code. Maximum back-pressure is 10% of set pressure or 50 PSI (3.45 Bar) whichever is less. Lifting Device as required by the ASME, ASME Section VIII: UG136(3) Each pressure relief valve on air, water at the valve inlet that exceeds 140°F (60°C), excluding over-pressure or relief events, or steam service shall have a substantial lifting device which when activated will release the seating force on the disc when the pressure relief valve is subjected to a pressure of at least 75% of the set pressure of the valve.