index

Pressure Temperature Rating as per ASME/ANSI B16.34

A350 LF3(d)	A 352 LC3(d)	A 216 WCC(a)
A 352 LC2(d)	A 352 LCC(e)

Notes :

(a)

Permissible but recommended for prolonged usage above about 800° F.

(d)

Not to be used over 650° F.

(e)

Not to be used over 800° F.

STANDARD CLASS
Temperature° F	Working Pressure by Classes PSIG
Temperature° F	150	300	400	1500	900	1500	2500
-20 to 100	290	750	1000	1500	2250	3750	6250
200	260	750	1000	1455	2250	3750	6070
300	230	730	970	1410	2185	3640	5880
400	200	705	940	1410	2115	3530	5280
500	170	665	885	1330	1935	3325	5540

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	505	670	1010	1510	2520	4200
800	80	410	550	825	1235	2060	3430

850	65	270	355	535	805	1340	2230
900	50	170	230	345	515	860	1430
950	35	105	140	205	310	515	860
1000	20	50	70	105	155	260	430

	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	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	290	750	1000	1500	2250	3750	6250

600	290	750	1000	1500	2550	3750	6250
650	290	750	1000	1500	2550	3750	6250
700	275	710	950	1425	2135	3560	5930
750	240	630	840	1260	1890	3150	5250
800	200	515	685	1030	1545	2570	4285

850	130	335	445	670	1005	1670	2785
900	85	215	285	430	645	1070	1785
950	50	130	170	260	385	645	1070
1000	25	65	85	130	195	320	535

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