Maximum Allowable Working Pressure (MAWP) by Temperature

Insulon Vacuum Jacketed Hose is available in both low and high pressure options. To find the pressure rating, see the technical specifications for the inner diameter size of your choice and look for Maximum Allowable Working Pressure (MAWP). For cryogenic, cold, and room temperature applications (less than 38C/100F), the MAWP specification is constant.

For high temperature fluid transfer systems (over 38C/100F), MAWP varies according to fluid temperature. As the operating temperature increases, MAWP decreases. If you are working on a high temperature application, please use the tables below to check MAWP according to the maximum fluid temperature.

Maximum Fluid Temperature		Maximum Allowable Working Pressure (MAWP)
Celsius	Fahrenheit	1/4″ ID	3/8” ID	1/2” ID	3/4″ ID	1″ ID
38	100	72	72	72	43	43
93	200	65	65	65	39	39
149	300	61	61	61	36	36
204	400	56	56	56	33	33
260	500	55	55	55	33	33
316	600	54	54	54	32	32
371	700	53	53	53	31	31
427	800	52	52	52	31	31
482	900	48	48	48	29	29
538	1000	33	33	33	20	20
593	1100	21	21	21	13	13
649	1200	13	13	13	8	8
704	1300	9	9	9	5	5
760	1400	4	4	4	2	2
816	1500	3	3	3	2	2

---

Maximum Fluid Temperature		Maximum Allowable Working Pressure (MAWP)
Celsius	Fahrenheit	1/4″ ID	3/8” ID	1/2” ID	3/4″ ID	1″ ID
38	100	750	750	750	600	500
93	200	682	682	682	546	455
149	300	637	637	637	510	425
204	400	585	585	585	468	390
260	500	577	577	577	462	385
316	600	570	570	570	456	380
371	700	555	555	555	444	370
427	800	547	547	547	438	365
482	900	510	510	510	408	340
538	1000	350	350	350	280	233
593	1100	228	228	228	183	152
649	1200	143	143	143	114	95
704	1300	93	93	93	75	62
760	1400	48	48	48	39	32
816	1500	39	39	39	31	26