index

Pressure Temperature Rating as per ASME/ANSI B16.34

A 182 F22(c)

A 217 WC9(j)

Notes :

(c)	Permissible but recommended for prolonged usage above about 1100° F.
(j)	Not to be used over 800° F.

SPECIAL CLASS
Temperature° F	Working Pressure by Classes PSIG
Temperature° F	150	300	400	600	900	1500	2500
-20 to 100	290	750	1000	1500	2250	3750	6250
200	260	715	955	1430	2250	3580	5965
300	230	675	905	1355	2030	3385	5640
400	200	650	865	1295	1945	3240	5400
500	170	640	855	1280	1920	3200	5330

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	380	505	755	1130	1885	3145
1000	20	270	355	535	805	1340	2230
1050	20(1)	200	265	400	595	995	1660

1100	20(1)	115	150	225	340	565	945
1150	20(1)	105	140	205	310	515	860
1200	20(1)	55	75	110	165	275	160

	Gate Valve

	Globe Valve

	Non Return Valve

	Ball Valve

	Butterfly Valve

	Diaphragm Valve

	Strainer Valve

	Needle Valve

Notes :

1.	For welding end valves only. Flanged ends ratings terminate at 1000° F.

SPECIAL CLASS
Temperature° F	Working Pressure by Classes PSIG
Temperature° F	150	300	400	600	900	1500	2500
-20 to 100	290	750	1000	1500	2250	3750	6250
200	290	750	1000	1500	2250	3750	6250
300	290	750	1000	1500	2250	3750	6250
400	290	750	1000	1500	2250	3750	6250
500	285	740	985	1475	2210	3685	6145

600	285	740	985	1475	2210	3685	6145
650	285	740	985	1475	2210	3685	6145
700	280	735	980	1465	2200	3665	6110
750	280	730	970	1460	2185	3645	6070
800	275	720	960	1440	2160	3600	6000

850	260	680	905	1355	2030	3385	5645
900	230	600	800	1200	1800	3000	5000
950	180	470	630	945	1415	2360	3930
1000	130	335	445	670	1005	1670	2785
1050	95	250	330	500	745	1245	2070

1100	55	140	190	285	425	710	1180
1150	50	130	170	260	385	645	1070
1200	25	70	90	140	205	345	570