WCB Dual Plate Check Valve

ADVANTAGES

Product introduction
The wafer flange clamped butterfly check valve is a energy-save product.It is manufactured based the foreign advanced 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.

Featutes
1.Small in size,light in weight,compact in structure,easy in maintenance.
2.Two torsion springs are used excerting on each of the pair valve plates.Which close the plates quickly and automatically.
3.The quick-close action prevents the medium from flowing back and eliminates water-hammer effect.
4.This valve is short in length,so that it is rigid and easy to mount.
5.It is easy to install on pipeline which is laid horizontally or vertically.
6.This valve is tightly sealed without leakage under the pressure water test.
7.Safe and reliable in operation,high interference-resistance.

PARAMETER INFORMATION

Valve main parts and material

No Parts Name	Materials
Body	WCB	LCB	LCC	WC6	WC9	CF8	CF8M	CF3	CF3M
Bonnet	WCB	LCB	LCC	WC6	WC9	CF8	CF8M	CF3	CF3M
Arm	WCB	LCB	LCC	WC6	WC9	CF8
Gasket	150~600LB, STAINLESS STEEL WINDING GASKET
Bolt	B7	L7M	L7M	B16	B16	B8	B8	B8	B8
Nut	2H	7M	7M	4	4	8	8	8	8

Standard
Design&Manufacture	API 594	API6D	JB/TB937
Face to face	API594	DIN3202	JB/T8937
Pressre-Temperature	ASME B16.34	DIN2401	GB/T9124
Pipe Flange	JB/71-90	JB/T9112-9124

PN Mpa	SIZE(mm)	L	D	D3	D2
1.6Mpa	40	60	96	46	41
	50	60	109	56	51
	65	67	129	73	65
	80	73	144	88	80
	100	73	164	108	102
	125	86	194	132	127
	150	98	220	160	152
	200	127	275	210	203
	250	146	332	266	254
	300	181	387	310	305
	350	184	447	355	350
	400	191	498	405	400
	450	203	558	455	450
	500	219	618	505	500
	600	222	732	605	600
	700	305	802	700	695
	800	305	912	800	796
	900	368	1012	903	898
	1000	432	1124	1055	1050
	1200	524	1340	1200	1400