Metal Seal V-Notch Pneumatic Control Valve

• Customized: Customized
• Certification: ISO, CE
• Power: Pneumatic
• Pressure: High Pressure
• Brand: Grat
• Work Temperature: High Temperature
• Model NO.: AV-series
• Material: Stainless Steel
• Input Signal: 4~20mA
• Output Signal: 4~20mA
• Transport Package: Wooden Canton
• Specification: DN100
• Trademark: Grat
• Origin: Wuhan, China
• HS Code: 8537109090
• Production Capacity: 50000PCS/Year

Product Description

                                                           Metal Seal V-Notch Pneumatic Control Valve

Product introduction:
The V-notch cut in disc can rotate reversely & correspondingly with metal seal to produce shear force to cut off fibre and prevent the block. This valve is special suitable for mud and fibrous media and suspended solids containing minimal media.
The Innovative & improved metal seal valve has the sealed surface of flange without screw hole to enhance the sealing strength which can effectively avoid the danger of surface leakage for the metal sealed valve's flange surface.
pneumatic piston actuator is divided into spring-type and spring-free type. When the valve is required to be fully opened or closed under fault it is equipped with spring type (by restoring tension of spring). When it is required to maintain position under fault it is equipped with no spring type.It is mainly composed of cylinder body spring piston piston rod front and rear cylinder head rack output shaft and other components.
Equipped with electrical regulator and air pressure reducing valve the regulation operation can be made by 0.4-0.7mpa air source.
The signal of industrial automation control system can be received by electrical regulator to accurately control the valve opening so as to achieve the control of flow temperature pressure and other different process parameters.


(1) The scissors shape section of valve seat and the disc easily cut off all kinds of impurities in the pipeline effectively ensure smooth flowing of the pipeline .
(2) Stellite seal ring,for high temperature resistance up to 350ºC
(3) Fixed ball valve stem ball core integration effectively solve the problem of mechanical return error rotary error ≤0.5%.
(4) Unique long stem body structure effectively increase the distance between the actuator and high temperature media better heat dissipation performance.

PRODUCT CHARACTERISTICS

Nominal pressure	DN15~DN350
Fluid temp.	-30ºC-350ºC
Nominal pressure	PN1.6-2.5MPa
Suitable fluid	Stellite seal ring: suited for ore pulp coa slurry paper pulp high temp. steam
Air source pressure	0.4~0.7MPa
Seal material of actuator	Flourorubber
Material of actuator	Aluminum alloy
Connection type	Wafer Flange Internal thread
Flow characteristic	Approximate eq%
Body material	SUS304,SUS316,WCB
Disc material	SUS304,SUS316
Seal material of Valve	Stainless steel Stellite
Stuffing	Graphite
Manufacture standard	JB/T8692-199
Design standard of ball valve	GB12237-89 AP16D
Inspection and test standard	JB/T 9092  API598

 
Gas volume to open /close 
 

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

 

Size DN	Inch	D	D1	D2	d	K	M	L	B	F	H1	H2	L1	L2
15	1/2"	95	15	28	45	65	4*Φ14	102	14	2	525	55	170	83
20	3/4"	105	15	28	55	75	4*Φ14	102	14	2	535	60	186	95
25	1"	115	20	40	66	85	4*Φ14	102	14	2	535	65	186	95
32	1.2"	135	25	46	78	100	4*Φ18	114	16	2	545	75	206	103
40	1.5"	145	32	54	85	110	4*Φ18	114	16	2	555	80	262	103
50	2"	160	40	65	100	125	4*Φ18	124	16	2	565	90	270	109
65	2.5"	180	50	80	120	145	4*Φ18	145	18	2	580	100	301	122
80	3"	195	65	100	135	160	8*Φ18	165	20	2	600	110	392	142
100	4"	215	80	110	155	180	8*Φ18	194	20	2	650	120	460	152
125	5"	245	100	135	185	210	8*Φ18	210	22	3	700	135	515	174
150	6"	280	125	165	210	240	8*Φ23	229	24	3	750	150	560	205
200	8"	335	160	205	265	295	12*Φ23	243	26	3	800	180	654	226
250	10"	405	210	260	320	355	12*Φ26	297	30	3	850	210	654	260
300	12"	460	250	322	375	410	12*Φ26	340	30	3	950	240	725	294
350	14"	520	300	365	435	470	16*Φ26	422	34	3	1000	270	742	380

Wiring diagram of regulation type




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.

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.