Trunnion Ball Valve Torque Value

Torque table chart for Class 150–2500 trunnion ball valves under design pressure at full differential pressure, based on a normal temperature.

Trunnion Ball Valve Torque Value

Size	Torque Value (N.m)
Inch	Class 150	Class 300	Class 400	Class 600	Class 900	Class 1500	Class 2500
1-1/2"	40	50	58	80	130	240	290
2"	50	70	75	120	180	250	380
3"	60	100	150	240	400	530	780
4"	100	210	330	500	670	900	1300
6"	420	600	650	900	1820	2040	4850
8"	700	1100	1300	1500	2560	4790	6900
10"	1100	1800	2000	2750	4510	8230	13600
12"	1600	2500	3153	3600	6824	10340	23100
14"	1950	3200	3800	4700	8250	12120
16"	2500	3500	4000	5470	9940	14920
18"	3400	5510	7000	9000	14630	27230
20"	4600	7500	9000	11000	20000	32830
22"	5200	9000	11000	14630	25400	39420
24"	6774	11150	13450	17950	29900	46320
26"	8000	13360	14700	21640	34950	55430
28"	8600	14200	18200	24340	38780	70650
30"	9233	16660	20230	32510	46610	75000
32"	11810	19500	28240	37600	58230
34"	13330	21380	31140	41800	63750
36"	14214	29375	35520	47570	72600

Note:

1. The torque value is calculated based on a normal temperature.
2.The torque value is calculated based on the design pressure under full differential pressure.
3. The seat is Nylon for classes 150–900 and PEEK for classes 1500 and 2500.
4. The torque shown in this table is to be used as a guide for actuator selection. A safety factor of 1.3~1.5 is recommended for actuator sizing.