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Forged steel carbon steel national standard lifting check valve H41H-16/25/40

Forged steel carbon steel national standard lifting check valve H41H-16/25/40

Bolt/welded connection valve cover, reduced diameter and full diameter

The end connection is a flange, designed according to GB/T12224

Product drawing

H41Product drawing.png

Product dimensions

PN63 FM
DN	NPS（inch）	Ød	L	H	A	B	C	d	T	f	f2	n-Ø
15	1/2″	10.5	170	63	45	75	105	40	18	2	4	4-14
20	3/4″	13	190	65	58	90	130	51	20	2	4	4-18
25	1″	17.5	210	80	68	100	145	58	22	2	4	4-18
32	1 1/4″	24	230	90	78	110	155	66	24	2	4	4-22
40	1 1/2″	29	260	101	88	125	170	76	24	3	4	4-22
50	2″	36.5	300	120	102	135	180	88	26	3	4	4-22
PN100 FM
DN	NPS（inch）	Ød	L	H	A	B	C	d	T	f	f2	n-Ø
15	1/2″	10.5	170	63	45	75	105	40	20	2	4	4-14
20	3/4″	13	190	65	58	90	130	51	22	2	4	4-18
25	1″	17.5	210	80	68	100	140	58	24	2	4	4-18
32	1 1/4″	24	230	90	78	110	155	66	26	2	4	4-22
40	1 1/2″	29	260	101	88	125	170	76	28	3	4	4-22
50	2″	36.5	300	120	102	145	195	88	30	3	4	4-26
PN160 FM
DN	NPS（inch）	Ød	L	H	A	B	C	d	T	f	f2	n-Ø
15	1/2″	10.5	170	65	45	75	105	40	20	2	4	4-14
20	3/4″	13	190	80	58	90	130	51	24	2	4	4-18
25	1″	17.5	210	90	68	100	140	58	24	2	4	4-18
32	1 1/4″	24	230	101	78	110	155	66	28	2	4	4-22
40	1 1/2″	29	260	120	88	125	170	76	28	3	4	4-22
50	2″	36.5	300	135	102	145	195	88	30	3	4	4-26
PN250 FM
DN	NPS（inch）	Ød	L	H	A	B	C	d	T	f	f2	n-Ø
15	1/2″	10.5	170	65	70	90	130	40	26	2	4	4-18
20	3/4″	13	190	80	75	95	135	51	28	2	4	4-18
25	1″	17.5	210	90	82	105	150	58	28	2	4	4-22
32	1 1/4″	24	230	101	96	120	165	66	32	2	4	4-22
40	1 1/2″	29	260	120	108	135	185	76	34	3	4	4-26
50	2″	36.5	300	135	122	150	200	88	38	3	4	8-26

Technical Documentation

1. Design and Manufacturing: JB/T7746; GB/T12224

2. Structural length: JB/T7746 or customer requirements

3. Flange end size: GB/T9113, JB/T82.1-82.4

4. Inspection and Testing: JB/T9092; GB/T26480

5. Structural features: B · B (central bolt) W · B (central welding) Flow rate: Full diameter (FP) Shrinking diameter (RP)

6. Subject material：A105N,LF2,LF3,F11,F5,F22,F304,F304L.F316,F316L,F321H,F51,F53,F55,F91,F92,F347,310S,800H, 600625 Special materials, etc

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