American standard large diameter check valve

American Standard swing check valve refers to a valve that automatically opens and closes the valve flap by relying on the flow of the medium itself to prevent the backflow of the medium, also known as check valve, one-way valve, reverse flow valve, and backflow valves.

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Product Parameter

Main external dimensions and connection dimensions:

American Standard (ANSI) 150LB
DN	DN/in	L	D	D1	D2	b	zxфd	H≈
40	1 1/2	165	125	98.4	73	12.7	4xф16	154
50	2	203	150	120.7	92.1	14.3	4xф19	144
65	2 1/2	216	180	139.7	104.8	15.9	4xф19	150
80	3	241	190	152.4	127	17.5	4xф19	210
100	4	292	230	190.5	157.2	22.3	8xф19	217
125	5	330	255	215.9	185.7	22.3	8xф22.5	235
150	6	356	280	241.3	216	23.9	8xф22.5	305
200	8	495	345	298.5	270	27	8xф22.5	370
250	10	622	405	362	323.8	28.6	12xф25.5	417
300	12	698	485	431.8	381	30.2	12xф25.5	478
350	14	787	535	476.3	412.8	33.4	12xф28.5	540
400	16	864	595	539.8	470	35	16xф28.5	620
450	18	978	635	577.9	533.4	38.1	16xф32	685
500	20	978	700	635	584.2	41.3	20xф32	720
600	24	1295	815	749.3	692.2	46.1	20xф35	880
650	26	1295	870	806.4	749	66.7	24xф35	910
700	28	1448	925	863.6	800	69.9	28xф35	1050
750	30	1524	985	914.4	857	73.1	28xф35	1050
American Standard (ANSI) 300LB
DN	DN/in	L	D	D1	D2	b	zxфd	H≈
40	1 1/2	241	155	114.3	73	19.1	4xф22.5	165
50	2	267	165	127.2	92.1	20.7	8xф19	170
65	2 1/2	292	190	149.2	104.8	23.9	8xф22.5	190
80	3	318	210	168.3	127	27	8xф22.5	216
100	4	356	255	200	157.2	30.2	8xф22.5	260
125	5	400	280	235	185.7	33.4	8xф22.5	280
150	6	444	320	269.9	216	35	12xф22.5	305
200	8	533	380	330.2	270	39.7	12xф25.5	368
250	10	622	445	387.4	323.8	46.1	16xф28.5	410
300	12	711	520	450.8	381	49.3	16xф32	445
350	14	838	585	514.4	412.8	52.4	20xф32	570
400	16	864	650	571.5	470	55.6	20xф35	630
450	18	978	710	628.6	533.4	58.8	24xф35	676
500	20	1016	775	685.8	584.2	62	24xф35	740
600	24	1346	915	812.8	692.2	68.3	24xф41	900
650	26	1346	970	876.3	749	77.8	28xф44.5	930
700	28	1499	1035	939.8	800	84.2	28xф44.5	1163
750	30	1594	1090	997	857	90.5	28xф48	1270
American Standard (ANSI) 600LB
DN	DN/in	L	D	D1	D2	b	zxфd	H≈
50	2	292	165	127	92.1	25.4	8xф19	203
65	2 1/2	330	190	149.2	104.8	28.6	8xф22.5	229
80	3	356	210	168.3	127	31.8	8xф22.5	235
100	4	432	275	215.9	157.2	38.1	8xф25.5	286
125	5	508	330	266.7	185.7	44.5	8xф28.5	340
150	6	559	355	292.1	216	47.7	12xф28.5	365
200	8	660	420	349.2	270	55.6	12xф32	445
250	10	787	510	431.8	323.8	63.5	16xф35	500
300	12	838	560	489	381	66.7	20xф35	545
350	14	889	605	527	412.8	70	20xф38	670
400	16	991	685	603	470	76.2	20xф41	715
450	18	1092	745	654	533.4	82.6	24xф44.5	785
500	20	1194	815	723.9	584.2	90	24xф44.5	845
600	24	1397	940	838.2	692.2	101.6	24xф51	1025

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