Copper – Internal Working Pressure DWV

Calculated Rated Internal Working Pressure for Copper Tube: DWV*

Nominal or standard size, in inches	Annealed***
	S= 6000 psi 100F	S= 5100 psi 150F	S= 4900 psi 200F	S= 4800 psi 250F
1-1/4	330	280	269	264
1-1/2	293	249	240	235
2	217	185	178	174
3	159	135	130	127
4	150	127	122	120
5	151	129	124	121
6	148	126	121	119
8	146	124	119	117

Nominal or standard size, in inches	Annealed***
	S= 4700 psi 300F	S= 4000 psi 350F	S= 3000 psi 400F
1-1/4	258	220	165
1-1/2	230	196	147
2	170	145	109
3	125	106	80
4	117	100	75
5	119	101	76
6	116	99	74
8	114	97	73

Nominal or standard size, in inches	Drawn**
	S= 10,300 psi 100F	S= 10,300 psi 150F	S= 10,300 psi 200F	S= 10,300 psi 250F
1-1/4	566	566	566	566
1-1/2	503	503	503	503
2	373	373	373	373
3	273	273	273	273
4	257	257	257	257
5	260	260	260	260
6	255	255	255	255
8	251	251	251	251

Nominal or standard size, in inches	Drawn**
	S= 10,000 psi 300F	S= 9,700 psi 350F	S= 9,400 psi 400F
1-1/4	549	533	516
1-1/2	489	474	459
2	362	352	341
3	265	257	249
4	250	242	235
5	252	245	237
6	247	240	232
8	244	236	229

* Based on maximum allowable stress in tension (psi) for the indicated temperatures (F).

** When brazing or welding is used to join drawn tube, the corresponding annealed rating must be used.

*** Types M and DWV are not normally available in the annealed temper. Shaded values are provided for guidance when drawn temper tube is brazed or welded. For more information, see Pressure Ratings and Burst Strength.