Duplex spring-loaded full-opening safety valve

Series

a38y-16c, a38y-25, a38y-40, a43h-16c, a43h-25, a43h-40, a37h-16c, a37h-25, a37h-40

Usage

This valve is suitable for equipment and pipeline with working temperature ≤ 350℃ water, steam and other media, as an overpressure protection device.
Connection flange standard according to JB/T-94 series 2 standard.

Main parts and materials

A38Y, A43H, A37H type safety valves, except for the tee (material WCB), the other parts of the material are the same as A47H, A48Y type spring-loaded safety valves.
A38Y, A43H, A37H type double safety valve is installed in the Y-type connector two same specifications of the A48Y or A47H type safety valve and constitute, its nominal diameter column
The nominal diameter is the inlet diameter of the Y-connector, and the combination is as follows:

Type 38Y (DN)	Corresponding Model A48Y (DN)	Type A43Y (DN)	Corresponding to A47Y (DN)	A37Y(DN)	Corresponding A47Y(DN)
50	32x2	50 32x2	32x2	50	32x2
80	50x2	80	50x2	80x2	65x2
100	65x2	100	80x2	80x2 100	80x2
150	100x2	125	100x2 125	125x2	100x2 125
-	-	150	125x2	125x2 - 150	125x2

* The content is for reference only, please contact us for more requirements.

Model	DN	D0	D	K	g	g1	b	f	f1	Z-Φd	DN'	D1	k1	g2	b1	f'	Z1-Φd1	L	L1	L0	H	H
A37H-16C A43H-16C	50	25	165	125	100	-	20	3	-	4-18	32	140	100	78	18	2	4-18	115	110	165	235	547
	80	40	200	160	135	-	20	3	-	8-18	50	165	125	100	16	3	4-18	135	120	190	285	795
	80	50	200	160	135	-	20	3	-	8-18	65	185	145	120	18	3	4-18	140	130	205	310	835
	100	65	220	180	155	-	22	3	-	8-18	80	200	160	135	20	3	8-18	160	135	255	355	890
	125	80	250	210	185	-	22	3	-	8-18	100	220	180	155	22	3	8-18	170	160	260	410	1170
	150	100	285	240	210	-	24	3	-	8-23	125	250	210	185	22	3	8-18	190	190	275	430	1240
A37H-25 A43H-25	50	25	165	125	100	-	20	3	-	4-18	32	140	100	78	18	2	4-18	115	110	165	235	547
	80	40	200	160	135	-	22	3	-	8-18	50	165	125	100	16	3	4-18	135	120	190	285	795
	80	50	200	160	135	-	22	3	-	8-18	65	185	145	120	18	3	4-18	140	130	205	310	835
	100	65	230	190	160	-	24	3	-	8-23	80	200	160	135	20	3	8-18	160	135	255	355	890
	125	80	270	220	188	-	28	3	-	8-26	100	220	180	155	22	3	8-18	170	160	260	410	1170
	150	100	300	250	218	-	30	3	-	8-26	125	250	210	185	22	3	8-18	190	190	275	430	1240
A37H-40 A43H-40	50	25	165	125	100	88	20	3	4	4-18	32	140	100	78	18	2	4-18	115	110	165	235	547
	80	40	200	160	135	121	22	3	4	8-18	50	165	125	100	16	3	4-18	135	120	190	285	795
	80	50	200	160	135	121	22	3	4	8-18	65	185	145	120	18	3	4-18	140	130	205	310	835
	100	65	230	190	160	150	24	3	4.5	8-23	80	200	160	135	20	3	8-18	160	135	255	355	890
	125	80	270	220	188	176	28	3	4.5	8-26	100	220	180	155	22	3	8-18	170	160	260	410	1170
	150	100	300	250	218	204	30	3	4.5	8-26	125	250	210	185	22	3	8-18	190	190	275	430	1240
A38Y-16C	50	20	165	125	100	-	20	3	-	4-18	40	150	110	85	16	3	4-18	198	100	165	225	636
	80	32	200	160	135	-	22	3	-	8-18	65	185	145	120	20	3	4-18	230	120	190	265	817
	100	40	220	180	155	-	22	3	-	8-18	80	200	160	135	20	3	8-18	293	140	265	265	921
	150	80	285	240	210	-	24	3	-	8-23	125	250	210	185	22	3	8-18	320	175	250	420	1097
A38Y-25	50	20	165	125	100	-	20	3	-	4-18	40	150	110	85	16	3	4-18	198	100	165	225	636
	80	32	200	160	135	-	22	3	-	8-18	65	185	145	120	20	3	4=18	230	120	190	265	817
	100	40	230	190	160	-	24	3	-	8-23	80	200	160	135	20	3	8-18	293	140	265	265	921
	150	80	285	240	218	-	30	3	-	8-26	125	250	210	185	22	3	8-18	320	175	250	420	1097
A38Y-40	50	20	165	125	100	88	20	3	4	4-18	40	150	110	85	16	3	4-18	198	100	165	225	636
	80	32	200	160	135	121	22	3	4	8-18	65	185	145	120	20	3	4-18	230	120	190	265	817
	100	40	235	190	160	150	24	3	4.5	8-23	80	200	160	135	20	3	8-18	293	140	265	265	921
	150	80	285	240	218	204	30	3	4.5	8-26	125	250	210	185	22	3	8-18	320	175	250	420	1097