Recommended Bolt Torques

ANSI Class 150 systems Lightly oiled A193 B7 bolts and A194 2H nuts
Pipe Size	Bolt Torque (ft-lb)
	PP		PVDF		PTFE
	Min.	Max.	Min.	Max.	Min.	Max.
1	13	17	17	21	8	13
1.5	31	41	41	50	19	31
2	65	85	85	104	39	65
3	103	134	134	165	62	103
4	67	88	88	108	40	67
6	124	161	161	199	75	124
8	167	217	217	267	100	167
10	157	204	204	252	94	157
12	193	251	251	309	116	193

ANSI Class 300 systems Lightly oiled A193 B7 bolts and A194 2H nuts
Pipe Size	Bolt Torque (ft-lb)
	PP		PVDF		PTFE
	Min.	Max.	Min.	Max.	Min.	Max.
1	17	22	22	21	10	17
1.5	47	61	61	75	28	47
2	33	42	42	52	20	33
3	62	80	80	99	37	62
4	81	105	105	130	49	81
6	83	108	108	132	50	83
8	130	169	169	207	78	130
10	135	175	175	216	81	135
12	186	242	242	298	112	186

Note: These maximum torques are only valid for LIGHTLY OILDED A193 B7 bolts and A194 2H nuts. Lightly oiled is considered lubrication with WD-40* or equivalent. The maximum recommended torque values are suggested for lined systems operating at or near the maximum recommended pressures and temperatures. Systems operating under less severe conditions can in general experience leak-free performance using lower torque values. Additionally, anytime gaskets or spring type washers are used, we suggest using the minimum recommended torque value and that the torque be increased only to obtain satisfactory sealing. For systems that will require frequent disassembly, we suggest using the minimum recommended torque value initially to avoid distortion of the plastic face. *WD-40 is a registered trademark of WD-40 Company, San Diego, CA.