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Pressure Temperature Rating as per ASME/ANSI B16.34


		A 352 LC1(d)	A 217 WC1(b)

Notes :

(b)

Permissible but recommended for prolonged usage above about 850° F.

(d)

Not to be used over 650° F.

STANDARD CLASS
Temperature° F	Working Pressure by Classes PSIG
Temperature° F	150	300	400	600	900	1500	2500
-20 to 100	265	695	925	1390	2085	3470	5785
200	250	680	905	1360	2035	3395	5660
300	230	655	870	1305	1955	3260	5435
400	200	640	855	1280	1920	3200	5330
500	170	620	830	1245	1865	3105	5180

600	140	605	805	1210	1815	3025	5040
650	125	590	785	1175	1765	2940	4905
700	110	570	755	1135	1705	2840	4730
750	95	530	710	1065	1595	2660	4430
800	80	510	675	1015	1525	2540	4230

850	65	485	650	975	1460	2435	4060
900	50	450	600	900	1350	2245	3745
950	35	280	375	560	845	1405	2345
1000	20	165	220	330	495	825	1370

	Gate Valve

	Globe Valve

	Non Return Valve

	Ball Valve

	Butterfly Valve

	Diaphragm Valve

	Strainer Valve

	Needle Valve

SPECIAL CLASS
Temperature° F	Working Pressure by Classes PSIG
Temperature° F	150	300	400	600	900	1500	2500
-20 to 100	265	695	925	1390	2085	3470	5785
200	265	695	925	1390	2085	3470	5785
300	265	695	925	1390	2085	3470	5785
400	265	695	925	1390	2085	3470	5785
500	265	695	925	1390	2085	3470	5785

600	265	695	925	1390	2085	3470	5785
650	265	695	925	1390	2085	3470	5785
700	265	695	925	1390	2085	3470	5785
750	265	695	925	1390	2085	3470	5785
800	265	695	925	1390	2085	3470	5785

850	260	680	905	1355	2030	3335	5645
900	225	590	785	1175	1760	2935	4895
950	135	350	470	705	1055	1755	2830
1000	80	205	275	410	615	1030	1715

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