Butterfly Check Valve

Structure Features

H76H, H76Y, H76W, H76X and H76F wafer butterfly check valves are used for pure pipeline, industrial, environmental protection, water treatment and high-rise building water supply and drainage pipeline to prevent reverse flow of medium. Use of action.

Feature

Small size, light weight, compact structure and convenient maintenance
The valve plate adopts dual type, which can close automatically under the elastic force of spring.
Due to the quick closing function, it can prevent the backflow of medium.
The length and size of valve body structure are small and the rigidity is good.
Safe and convenient, it can be used for

Application Specification

1, Valve design and manufacture according to API 594 requirements

2, Valve structural length according to API 594 requirements

3, Valve inspection and acceptance by API 598 requirements

Parts Material

Butterfly Check Valve

No.	Part Name	Stainless Steel	Cast Steel
1	Body	CF8	WCB
2	Seat	CF8 + STL	WCB + STL
3	Disc	CF8 + STL	WCB + STL
4	Hinge Pin	0Cr18Ni9	2Cr13
5	Packing	Inconel X-750	Inconel X-750
6	Stop Pin	304	2Cr13
7	Screw	0Cr18Ni9	35CrMoA
8	Gasket	PTFE	PTFE
9	Guide Bushing	0Cr18Ni9	2Cr13

Main connection dimensions

PN 1.6 MPa

DN	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800
L	60	67	73	73	86	98	127	146	181	184	191	203	219	222	305	305
D	108	128	142	162	192	218	273	329	384	444	496	556	618	732	802	912
D1	51	65	80	102	127	152	203	254	305	350	400	450	500	600	965	796
D2	56	73	88	108	132	160	210	266	310	355	405	455	505	605	700	800

PN 2.5 MPa

DN	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800
L	60	67	73	73	86	98	127	146	181	184	191	203	219	222	305	305
D	108	128	142	168	194	224	284	341	401	458	515	565	622	732	831	942
D1	51	65	80	102	127	152	203	254	305	350	400	450	500	600	965	796
D2	56	73	88	108	132	160	210	266	310	355	405	455	505	605	700	800

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Structure Features

Feature

Application Specification

Parts Material

Main connection dimensions

Related Products

Swing Check Valve

ASME Check Valve

Vertical Check Valve

DN	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800
L	60	67	73	73	86	98	127	146	181	184	191	203	219	222	305	305
D	108	128	142	162	192	218	273	329	384	444	496	556	618	732	802	912
D1	51	65	80	102	127	152	203	254	305	350	400	450	500	600	965	796
D2	56	73	88	108	132	160	210	266	310	355	405	455	505	605	700	800

DN	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800
L	60	67	73	73	86	98	127	146	181	184	191	203	219	222	305	305
D	108	128	142	168	194	224	284	341	401	458	515	565	622	732	831	942
D1	51	65	80	102	127	152	203	254	305	350	400	450	500	600	965	796
D2	56	73	88	108	132	160	210	266	310	355	405	455	505	605	700	800

DN	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800
L	60	67	73	73	86	98	127	146	181	184	191	203	219	222	305	305
D	108	128	142	162	192	218	273	329	384	444	496	556	618	732	802	912
D1	51	65	80	102	127	152	203	254	305	350	400	450	500	600	965	796
D2	56	73	88	108	132	160	210	266	310	355	405	455	505	605	700	800

DN	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800
L	60	67	73	73	86	98	127	146	181	184	191	203	219	222	305	305
D	108	128	142	168	194	224	284	341	401	458	515	565	622	732	831	942
D1	51	65	80	102	127	152	203	254	305	350	400	450	500	600	965	796
D2	56	73	88	108	132	160	210	266	310	355	405	455	505	605	700	800

DN	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800
L	60	67	73	73	86	98	127	146	181	184	191	203	219	222	305	305
D	108	128	142	162	192	218	273	329	384	444	496	556	618	732	802	912
D1	51	65	80	102	127	152	203	254	305	350	400	450	500	600	965	796
D2	56	73	88	108	132	160	210	266	310	355	405	455	505	605	700	800

DN	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800
L	60	67	73	73	86	98	127	146	181	184	191	203	219	222	305	305
D	108	128	142	168	194	224	284	341	401	458	515	565	622	732	831	942
D1	51	65	80	102	127	152	203	254	305	350	400	450	500	600	965	796
D2	56	73	88	108	132	160	210	266	310	355	405	455	505	605	700	800