Conbraco - Catalog - Conbraco Industries - (Version JPG) - Page n° 49 - PDF Catalogue | Technical Documentation

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Flange valve, Lug valve, Nut, Pressure reducing valve, Vacuum breaker

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	Plumbing and Heating
		ASME Section I & VIII Safety Valves
		500 SERIES

MODEL NUMBERING SYSTEM 500 SERIES SAFETY RELIEF VALVE


position 1 2	3	4	5	6	7	CO	9 10	11 121314
series cap ^body™mmat'l style		orifice letter	inlet	connection	^serviçe^^^	seat	special options	set pressure
		^j				m	aa	0 4 25
51=BRONZE/BRASS	1=SCREWED CAP	D	C=1/2	B=MNPTX FNPT	J=SEC VIII LIQUID	M=METAL	FACTORY ISSUED	SET PRESSURE,
52=BRONZE/ STAINLESS	2=SCREWED + GAG	E	D=3/4	D=3/4" OUTLET 510 & 520 ONLY	K=SEC VIII AIR	N=NEOPRENE	LETTERS / NUMBERS OR SPECIAL OPTIONS OR FEATURES	psig (4 DIGITS)
53=CARBON/ STAINLESS	3=PACKED LEVER	F	E=1		L=SEC VIII STEAM	K=PCTFE	"AA"=DEFAULT STANDARD "CE"=PED COMPLIANT	VACUUM
54=ALL STAINLESS	4=PACKED + GAG	G	F=1-1/4		M=NON CODE LIQUID	V=VITON	"HT" HIGH TEMP SPRING	"HG" PREFIX+ 2 DIGIT
		H	G=1-1/2		N=NON CODE AIR / GAS	E=EPDM	"OX" CLEARED FOR OXYGEN SERVICE
		J	H=2		P=NON CODE STEAM	B=NITRILE
					Q=VACUUM	S=SILICONE

Notes:

1. The ASME Code Section VIII requires a lift lever for the following services: air, steam, or hot water over 140°F

2. Maximum back pressure is 50 psig.

3. High temperature stainless steel alloy spring is required above 550°F/288°C. Specify option "HT"

4. Service limits for PCTFE seat: -330 to +250°F/-201 to 121°C


		Service Limits
Series	510	520	530	540
Body	Bronze	Bronze	Carbon Steel	Stainless Steel
Trim	Brass	Stainless	Stainless	Stainless
Max. Set-Steam	250 psi	300 psi	900 psi	900 psi
Max Set-Air/Gas/Liquid	300 psi	900 psi	900 psi	900 psi

Note:

1.) Specify "HT" high temperature inconel springs for service temperatures beyond 550'F

2.) Models 510, 520 and 540 are suitable for cryogenic service to -320'F, subject to special preparation and use of "K" option PCTFE seat. Consult factory for details.

-320 / 406T -320 / 422T -20 / 800T

-320 / 800T

Temp. Limits


Set Press.			Orifice				Set Press.			Orifice
psig	D	E	F	G	H	J	psig	DE		F	G	HJ
15	14	25	40	65	102	167	325	64	113	178	291	455	744
20	16	29	45	74	115	189	375	69	121	191	313	489	799
25	18	32	50	82	127	208	400	71	125	197	323	505	826
30	19	34	54	89	138	226	425	73	129	203	333	520	851
35	21	37	58	96	149	244	450	75	133	209	343	535	876
40	22	40	62	102	160	261	475	77	136	215	352	550	900
45	24	42	66	108	169	277	500	79	140	220	361	564	923
50	25	44	70	114	178	292	525	81	143	226	370
55	26	46	73	120	187	306	550	83	147	231	379
60	28	48	76	125	195	320	575	85	150	236	388
65	29	50	79	130	203	333	600	87	153	241	396
70	30	52	82	135	211	345	625	89	157
75	31	54	85	140	218	357	650	91	160
80	32	56	88	145	226	369	675	92	163
85	33	58	91	149	233	381	700	94	166
90	34	59	93	153	239	392	725	96	169
95	35	61	96	158	246	402	750	97	171
100	36	63	98	162	252	413	775	99	174
125	40	70	110	181	282	462	800	100	177
150	44	77	121	198	309	506	825	102	180
175	47	83	130	214	334	546	850	104	183
200	50	89	139	229	357	584	875	105	185
225	53	94	148	242	378	619	900	107	188
250 275	56 59	99 104	156 163	256 268	399 418	653 685	Note: To determine water capacity at 25% overpressure, mitltinly/ iho rctnctrH\/ at 1D⁰/, hi/ 1
300	62	108	171	280	437	715	multiply the capacity at 10% by 1.066.
350	66	117	184	302	472	772

ASME Section VIII WATER -US GALLONS PER MINUTE OF WATER @ 10% OVERPRESSURE. NATIONAL BOARD CERTIFIED.

^VAp<Mtì' Valves

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Conbraco - Catalog - Conbraco Industries - #49

Flange valve, Lug valve, Nut, Pressure reducing valve, Vacuum breaker