Pneumatic Double Acting Cylinder Butterfly Control Valve

               Pneumatic Double Acting Cylinder Butterfly Control Valve

Product description
With simple structure, light weight, quick opening speed, pneumatic wafer switch butterfly valve consists of the piston type cylinder and the wafer type butterfly valve, and the spring return type valve can support automatic reposition function (air to open and close) when the air and power were cut off. This product is widely applied in the industrial pipeline fields of metallurgy, environmental protection, water treatment, petrochemical, power.

Technical parameters

Air pressure	0.4~0.7MPa
Valve size	DN15-500
Body ratings	1.6MPa 4.0MPa  6.4MPa
Medium Temp	-20°C ~ +250°C
Control type	spring return type, double acting type
Action mode	switch to cut off
Body connections	wafer
Body material	WCB/CF8/SUS304/SUS316/ food grade material
Disc material	2Cr13/F304/F316/WCB/FZG1Cr18Ni9Ti/ZG1Cr18Ni12Mo2Ti
Stem material	2Cr13/1Cr18Ni9Ti/1Cr18Ni12Mo2Ti
Seal ring	Intensified PTFE, digital polystyrene
Packing	PTFE, Grafoil
Leakage	Compliance with standardANSIB16.104 5
Seal type	Elastic seal, high temperature digital polystyrene
Applicable medium	Water, oil, nitric acid, acetic acid, viscous fluid and strong oxidizing medium
Protection level	IP67
Manufacturing standards	JB/T8692-1998

Figure and connection size

Valve size	Cylinder	D	K	L	L1	L2	H2	H1	4XΦD
DN/mm	Φ
50	75	92	125	42.6	206	103	70	260	4-Φ18
65	83	106	145	45.6	262	109	76	243	4-Φ18
80	92	122	160	45.6	270	122	89	308	8-Φ18
100	105	150	180	51.6	301	143	104	345	4-Φ22
125	125	177	210	55.6	392	152	120	383	4-Φ22
150	140	204	240	55.6	460	174	132	427	4-Φ23
200	160	260	295	59.6	515	205	167	503	4-Φ23
250	190	314	355	67.6	560	226	202	567	4-Φ28
300	210	370	410	77.6	654	260	239	630	4-Φ28
350	240		470	77	725	294	277.5	724	4-Φ28
400	270		525	86.5	742	380	309	787	4-Φ30
450	300		585	105.6	865	430	337	858	4-Φ30
500	350		650	131.8	925	516	361	916	4-Φ33
600	350		770	152	925	516	459	998	4-Φ36

Our Services

1.Professional consultation

2.24 hours response after sale.

3.One year warranty.

4.Safe packing for shipment.

5.Welcome sample order.

Packing&Shipping
1.Packing: inner with bubble wrap,outer with cardboard box and wooden case
2.Transportation:by sea,by air,by train


Company Introduction
Wuhan Grat Control Valve is a professional valve manufacturer established in 2005.It is specialized in researching and developing various automatic valves for industrial automation and on-site implimentation products. 
In 10 year development,Grat has obtained 9 patents like small flow control valve and potentiometer position device,and do business with more than 1000 companies all over the world.Some of them are world famous enterprises.
According to ISO9001:2008 quality management system,Grat strictly controls the product quality and the whole production process.In 2015,Grat got CE certificates and passed successfully EMC tests and CNAS 100000 times lifetime tests. 
With the ERP and CRM systems applied in management,they enhance the resource and information level and improve the ability of customer relationship.High quality and good service are our advantages to win the market.

Certificates & Test reports


Application