flap check valve

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Feature

Design Standard: BS EN1074-3/BS EN12334/AWWA C508

Face to Face Standard: EN558. S10/S48. ASME B16.10.(DIN3202 F6/BS5153)

Flanges Standard: BS EN1092-2. ASME B16.1,AWWA C508

Inspection & testing: BS EN12266-1,AWWA C508

Use

Working Pressure:16bar 250PSI

working Temperature: -20℃ to 100℃(4°F to 212°F)

Drawing

Material list

ITEM	Part	Material
1	Body	Ductile lron
2	Flap	DI & EPDM
3	Gasket	NBR
4	Bonnet	Ductile lron
5	Bolts	Stainless Steel
6	Bolts	Stainless Steel

Dimensions(mm) EN1092-2 PN16

DN	L			H	D		C	M		b	F	n-d
	DINF6	BS5153	AWWAC515		DIN BS	AWWA		DIN BS	AWWA			DIN BS	AWWA
50	200	203	203	120	165	152	99	125	120.5	19	3	4-19	4-19
65	240	216	216	140	185	178	118	145	139.5	19	3	4-19	4-19
80	260	241	241	168	200	191	132	160	152.5	19	3	8-19	4-19
100	300	292	292	185	220	229	156	180	190.5	19	3	8-19	8-19
125	350	330		225	250		184	210		19	3	8-19
150	400	356	356	269	285	279	211	240	241.5	19	3	8-23	8-22
200	500	495	495	312	340	343	266	295	298.5	20	3	12-23	8-22
250	600	622	622	328	405	406	319	355	362	22	3	12-28	12-25
300	700	698	698	377	460	483	370	410	432	24.5	4	12-28	12-25
350	800	787	787	459	520	533	429	470	476	26.5	4	16-28	12-29
400	900	914	914	437	580	597	480	525	539.5	28	4	16-31	16-29

photos

what is flap check valve?

The flap check valve is a flap-shaped Swing Check Valve, which opens when the flap is hydraulically actuated and closes due to the weight of its own flap disc when the hydraulic pressure becomes smaller .

As the valve plate is only a flap, the design is simple and easy to install.