Butterfly Swing Check Valve » Check Valves » Valves » Products

Description

Standards compliance

Design and Manufacture: ASNI B16.34,API 6D

Face to face: API6D

Flanged connection: 2"-24" ANSI B16.5 22",26"-36"
MSS-SP-44 API 605 on request

Test and inspection: API6D

Shell test: 150Lb 450 PSI 300Lb 1125 PSI

Seat test: 150Lb 315 PSI(Hydrostatic) 80PSI
(Air)300Lb 815 PSI

Product introduction

The wafer flange clamped butterfly check valve is a energy-save produt. It is manufactured based the foreign advancec technology and in accordance with relative international standards. This product is featured by excellent retaining per-formance high safety and reliability and low flow resistance. It is suitable for systems in the industries of petrochemical food processing medicine,textile,paper-making. Water,supply,drainage,metallurgy,energy and light industry,etc,used as a check valve in one way.

Features: Small in size,light in weight,compact in structure,easy in maintenance.; Two torsion springs are used exerting on each of the pair valve plates.Which close the plates quickly and automatically.; The quick-close action prevents the medium from flowing back and eliminates water-hammer effect.; This valve is short in length,so that it is laid horizontally or vertically.; It is easy to install on pipeline which is laid horizontally or vertically.; This valve is tightly sealed without leakage under the pressure water test.; Safe and reliable in operation,high interference-resistance.; The connection dimensions of flanges accord with the standards of GB4216-84 GB4216.5-84; The face to face dimensions are in accordance with GB12221-89.ISO 5752-82. The stem of the valve should be perpendicular to the horizontal level when the valve is mounted on horizontal pipeline.For vertical installation the direction of flow should be downward.

CLASS 150~CLASS 300 Butterfly swing check valve

Materials for main parts

Part	WCB	A352LCB	A217 WC 6	A217 WC9	A217 C 5	A217 C 12	A351 CF 8	A351 CF 8M
Body	A216 WCB	A352LCB	A217 WC 6	A217 WC 9	A217 C 5	A217 C 12	A351 CF 8	A351 CF 8M
Disc	A351 CF 8	A351 CF 8	A182 F 11	A182 F 22	A217 C 5	A217 C 12	A182 F 304	A182 F 316
Stem	A182 F 304	A182 F 304	A182 F304	A182 F304	A182 F304	A182 F304	A182 F304	A182 F316
Spring	Stainless steel
Rubber Gasket	EPDM-46-+121 Neoprene-50-+150 NBR-35-+113 Fluororabber-23-+150

Moverall & structure dimension & weight

Size		D	D1	D2	L	R	t	Weight (kg)
mm	inch	D	D1	D2	L	R	t	Weight (kg)
50	2"	107	65	43.3	43	28.8	19	1.5
65	2.5"	127	800	60.2	46	36.1	20	2.4
80	3"	142	94	66.4	64	43.4	28	3.6
100	4'`	162	117	90.8	64	52.8	27	5.7
125	5"	192	145	116.9	70	65.7	30	7.3
150	6"	213	170	144.6	76	78.6	31	9.0
200	8"	273	224	198.2	89	104.4	33	17
250	10"	323	265	233.7	114	127	50	26
300	12"	378	310	283.9	114	148.3	43	42
350	14"	438	360	332.9	127	172.4	46	55
400	16"	439	410	381.0	140	197.4	52	75
450	18"	555	450	419.9	152	217.8	58	101(107)
500	20"	594	505	467.8	152	241	58	111
600	24"	690	624	572.6	178	295.4	73	172
700	28"	800	720	680	29	354	98	219

Stainless steel on the folder-type check valve (H74W)30 4

Performance parameters

Type	PN(MPa)	Pressure test Ps(MPa)		Appropriate temperature(ºC)	Apprropriate medium
Type	PN(MPa)	Shell	Seal	Hard Seal	Apprropriate medium
H74	1.0	1.50	1.10	≤400	Oil,water,acid Alkali
H74	1.6	2.40	1.76
H74	2.5	3.75	2.75
H74	4.0	6.00	4.40

Main size

DN(mm)	L			D
DN(mm)	D	I	II	PN1.0	PN1.6	PN2.5	PN4.0
50	27	15	22	107	107	109	109
65	39	15	22	127	127	129	129
80	48	15	22	142	142	144	144
100	72	15	24	162	168	170	170
125	95	16	26	190	192	186	186
150	115	19	29	218	220	226	226
200	140	29	43	272	272	286	293
250	190	29	43	327	330	343	355
300	218	38	50	378	384	403	420

Main size and weight

Dn(mm)	1.0			1.6			2.5			4.0			6.3(6.4)			10.0			16.0
	(mm)		(kg)	(mm)		(kg)	(mm)		(kg)	(mm)		(kg)	(mm)		(kg)	(mm)		(kg)	(mm)			(kg)
	L	D	(kg)	L	D	(kg)	L	D	(kg)	L	D	(kg)	L	D	(kg)	L	D	(kg)	L	D₁	D₂	(kg)
50	60	109	2	60	109	2	60	109	2	60	109	3.5	60	115	3.5	60	122	4	70	143	122	6.5
65	67	129	3	67	129	3	67	129	3	67	129	5	67	140	5	67	147	6	83	163	147	9
80	73	144	4	73	144	4	73	144	4	73	144	7	76	150	7	73	157	8	83	178	157	14
100	73	164	6	73	164	6	73	170	6	73	170	9	79	177	11	79	183	12	102	210	183	24
125	86	194	7.5	86	194	7.5	86	197	9	86	197	16	105	213	20	105	220	21	110	249	220	30
200	127	275	20	127	275	20	127	287	22	127	293	30	165	313	41	165	324	46	206	358	324	55
250	146	330	30	146	332	32	146	343	38	146	355	80	213	364	70	213	394	76
300	181	380	48	181	387	50	181	403	54	184	450	86	229	424	100	229	458	110

Product Name:	Butterfly Swing Check Valve
Category:	Check Valves
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