High Performance Triple Eccentric Pneumatic Butterfly Valve

• Customized: Customized
• Certification: ISO, CE
• Power: Pneumatic
• Pressure: High Pressure
• Brand: Grat
• Work Temperature: High Temperature
• Model NO.: AB3-series
• Material: Stainless Steel
• Transport Package: Wooden Canton
• Trademark: Grat
• Origin: Wuhan, China
• HS Code: 8537109090

Product Description

Product profile:

Category : Pneumatic Butterfly Valve

Product Name:  Triple Eccentric Pneumatic Butterfly Valve

Product introduction:
Triple eccentric pneumatic butterfly valve adopts a "U" type stainless steel seal ring. This precision elastic seal ring and the 3D eccentric polishing disc contact each other to solve the problem that the seal surface is in the sliding contact friction when the traditional eccentric butterfly valve opened and closed from 0 ° to 10 ° which makes the seal surface separating when the disc opened in a twinkle and seal recovery when the disc closed. It also achieves the purpose of the best seal performance and prolonged service life. Hence this valve is widely suited to the pipeline of medium temperature ≤ 550 ºC as the best device to regulate  and cut off fluid which is applied in the fields of metallurgy electric power petroleum chemical air gas combustible gas water supply drainage and other corrosive medium.

PRODUCT CHARACTERISTICS

(1) The sealing ring by the stainless steel plate and graphite composite plate superimposed.It has the double advantages of metal hard seal and elastic seal no matter in the case of low temperature and high temperature it has excellent sealing performance abrasion resistance corrosion resistance and long service life.
(2) Unique lengthen valve stem structure effectively increase the distance between the actuator and high temperature media better heat dissipation performance.
(3)Single action pneumatic piston actuator prevent midway air source broken spring reset function automatically reset close valve.
(4) Valve opening resistance is small butterfly plate sealing surface for an upward raised cone open the butterfly plate circle at the same time to complete the point from the sealing ring solid objects are not easy to pile up on the sealing surface.
(5) The use of three eccentric sealing structure valve seat and butterfly valve almost no friction the more closed the more tight sealing function.

 

Nominal diameter	DN50~DN1200
Medium temp.	-30ºC-550ºC
Nominal pressure	PN1.0-2.5MPa
Suited medium	metallurgy electric power petroleum chemical air gas combustible gas water supply drainage and other corrosive medium
Pressure of gas supply	0.4~0.7MPa
Seal material	Metal alloy
Flow characteristic	Approximate linear / Eq%
Connection type	Wafer / Flange
Control mode	Regulation / Switch to on-off
Body material	WCB SUS304 SUS316L CF8 CF8L stainless steel
Disc material	WCB SUS304 SUS316L CF8 CF8L stainless steel
Flange standard	GB/T9113.1-2000;GB/T9113.2-2000  GB/T9115.1-2000;GB/T9115.2-2000
Length standard	GB/T12221-1989
Design and product standard	GB/T12238-1989
Inspection and test standard	GB/T13927-1992;JB/T9092-1999

Optional Accessories
 

On-off type	Solenoid valve Limit switch
Regulation type	Electrical positioner Pneumatic positioner Electrical/Pneumatic convertor
Air treatment unit	Fliter Lubricator Air relief valve
Hand wheel	HVSD hand wheel

 

Gas consumption
 

Air cylinder size	Open(L)	Close(L)
50	0.11	0.15
65	0.22	0.24
75	0.3	0.35
85	0.45	0.48
95	0.5	0.55
110	0.7	0.7
125	1.6	1.6
140	2.3	2.1
160	3.5	3
190	5.9	5.9
210	7.6	7.5
240	11	9
270	17	14
300	23.5	28
350	34	40
400	58	58

Figure and connection size

 

Valve size DN/mm	Air cylinder diameter Φ	D1	D2	L	L1	L2	H1	H2
50	75	92	Φ18	43	206	103	590	112
65	83	106	Φ18	46	262	109	600	115
80	92	122	Φ18	49	270	122	620	120
100	105	150	Φ18	56	301	143	670	138
125	125	177	Φ18	64	392	152	740	164
150	140	204	Φ23	76	460	174	780	175
200	160	260	M20	89	515	205	830	208
250	190	314	M24	114	560	226	890	243
300	210	370	M24	114	654	260	990	283
350	240	*	M24	127	725	294	1040	310
400	270	*	M27	140	742	380	1080	340
450	300	*	M27	152	865	430	1120	380
500	350	*	M30	152	925	516	1160	410
600	350	*	M33	154	925	516	1220	470

Manufacturing
As a Hi-Tech enterprise,we have our Design Team for innovation and customization.For these years,we achive more than 20 kinds of proprietary technology to make our product more powerful.


Most of our staff  are with more than 10 years' machinery manufacture experience. Also,we have our professional Quality Assurance Team for quality control.



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



Applications 
       Grat control vale is widely applied in Petrochemical industry, pharmaceutical and chemical industry, natural gas pipeline, electric power industry, food industry, industrial refrigeration, automatic control, environmental water protection, metallurgical industry......


Our clients: in oil&gas, water processing, refrigeration equipment, power, marine, food, wind-energy, phamarceutical and chemical industries



Welcome to visit Grat Control Valve, we are here all the time!



Wuhan Grat Control Valve
Add: No.6, Liufangyuan Road,Wuhan 430200,China.
Tel:[phone]         Web: http://gratcontrolvalve.en.made-in-china.com