Butterfly Check Valve

Widely used in fields such as petroleum, chemical engineering, metallurgy, construction engineering, water supply, etc

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check valve valve

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Check valve

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PN10H74Type B wafer type stainless steel check valve

Nominal diameter DN(mm)	size(mm)			Piping flange (for reference)
	L	d	D1	Diameter D1 of the center circle of the bolt hole	Bolt quantity	Bolt diameter D
50	14.5	100	25	125	4	M16
60	14.5	120	338	145	4	M16
80	14.5	135	46	160	4	M16
100	14.5	155	71.5	180	8	M16
125	16	185	95	210	8	M16
150	19	210	114	240	8	M20
200	29	265	140	295	8	M20
250	29	320	188	35o	12	M20
300	38	368	216	400	12	M20
350	41	428	263	46o	16	M20
400	51	482	305	515	16	M24
450	51	532	356	565	20	M24
500	65	585	406	620	20	M24
600	70	685	482	725	20	M27

PN16H74 wafer type stainless steel check valve

PN25H74Type B wafer type stainless steel check valve

PN40H74Type B wafer type stainless steel check valve

PN10H76Type B wafer type stainless steel check valve

Nominal Diameter DN(mm)	size(mm )				weight(kg)	Piping flange (for reference)
	L	d	D3	D2		The center of the screw inspection hole is directly emptyD1	Number of spirochetes	Bolt diameter D	Bolt length L1
40	60	96	46	41	2	110	4	M16	150
50	60	109	56	51	2	125	4	M16	150
65	67	129	73	65	3	145	4	M16	155
80	73	144	88	8o	4	160	8	M16	160
100	73	164	108	102	6	180	8	M16	165
125	83	194	132	127	8	210	8	M16	180
150	98	220	160	152	12	240	8	M20	205
200	127	275	210	203	24	295	8	M20	235
250	146	330	266	2254	35	350	12	M20	255
300	181	380	310	305	48	400	12	M20	290
350	184	440	355	350	78	460	16	M20	295
400	198	493	405	400	106	515	16	M24	310
450	203	543	455	450	135	564	20	M24	325
500	219	598	505	50o	165	620	立	M24	345
600	222	698	605	600	260	725	20	M24	355
700	305	811	700	695	360	840	24	M27	440
800