API Check valve

Product Name: American standard check valve

Product model: H41W (H)

Nominal size: 1/2 "-20"

Nominal pressure: 150Lb-600Lb

Body material: WCB, CF8, CF8M, CF3, CF3M

Application specification

Structure length ANSI B16.10 design standard API6D&BS1868

Flange dimensions ANSI B16.5 inspection standard API598

Material of main parts

Part Name	CF8系列 Line	CF3系列 Line	CF8M系列 Line	CF3M系列 Line	WCB系列 Line
Body/Cap	CF8	CF3	CF8M	CF3M	WCB
Valve Piece	F304	F304L	F316	F316L	1Cr13
Gasket	PTFE+304	PTFE+304L	PTFE+316	PTFE+316L	石墨 Graphite+304
Bolt	A193-B8	A193-B8	A193-B8	A193-B8	35GrMoA
Nut	A194-8M	A194-8M	A194-8M	A194-8M	45

API Check valve size

Type	Size(mm)		size（mm）
	inch	DN	L	D	D1	D2	b	Z-φd
H41W-150LB	1/2″	15	108	89	60.5	35	12	4-φ15
	3/4″	20	117	98	70	43	12	4-φ15
	1″	25	127	108	79.5	51	12	4-φ15
	1¼″	32	140	117	89	64	13	4-φ15
	1½″	40	165	127	98.5	73	15	4-φ15
	2″	50	203	152	120.5	92	16	4-φ19
	2½″	65	216	178	139.5	105	18	4-φ19
	3″	80	241	190	152.5	127	19	4-φ19
	4″	100	292	229	190.5	157	24	8-φ19
	5″	125	356	254	216	186	24	8-φ22
	6″	150	406	279	241.5	216	26	8-φ22
	8″	200	495	343	298.5	270	29	8-φ22
	10″	250	622	406	362	324	31	12-φ25
	12″	300	698	483	432	381	32	12-φ25
H41W-300LB	½″	15	152	95	66.5	35	15	4-φ15
	¾″	20	178	117	82.5	43	16	4-φ19
	1″	25	203	124	89	51	18	4-φ19
	1¼″	32	216	133	98.5	64	19	4-φ19
	1½″	40	229	156	114.5	73	21	4-φ22
	2″	50	267	165	127	92	22	8-φ19
	2½″	65	292	190	149	105	25	8-φ22
	3″	80	318	210	168.5	127	29	8-φ22
	4″	100	356	254	200	157	32	8-φ22
	5″	125	400	279	235	186	35	8-φ22
	6″	150	444	318	270	216	37	12-φ22
	8″	200	559	381	330	270	41	12-φ25
	10″	250	622	445	387.5	324	48	16-φ29
	12″	300	711	521	451	381	51	16-φ32
H41W-600LB	½″	15	165	95	66.5	35	15	4-φ15
	¾″	20	190	118	82.5	43	16	4-φ19
	1″	25	216	124	89	51	18	4-φ19
	1¼″	32	229	133	98.5	64	21	4-φ19
	1½″	40	241	156	114.5	73	23	4-φ22
	2″	50	292	165	127	92	26	8-φ19
	2½″	65	330	190	149	105	29	8-φ22
	3″	80	356	210	168	127	32	8-φ22
	4″	100	432	273	216	157	38	8-φ25
	5″	125	508	330	266.5	186	45	8-φ29
	6″	150	559	356	292	216	48	12-φ29
	8″	200	660	419	349	270	56	12-φ32
	10″	250	787	508	432	324	64	16-φ35
	12″	300	838	559	489	381	67	20-φ35