Central Line Soft Sealed Wafer Electric Butterfly Valve

• Customization: Available
• Media: Water
• Driving Mode: Electric
• Model NO.: EB-0000181
• Connection Form: Wafer
• Structure: Centre Sealing
• Seal Form: Auto Sealed
• Valve Stem: Normal
• Work Pressure: Mid-Pressure (2.5mpa< Pn <6.4mpa)
• Working Temperature: Medium Temperature (120°C<T<450°C)
• Material of Seal Surface: Soft Sealed
• Valve Body: Casting
• Standard: DIN
• Application: Industrial Usage, Water Industrial Usage, Food, Lubrication, Fibrous Fluid, Water, Oil, Gas.
• Valve Size: Dn40-800
• Modulation Accuracy: Less Than 0.3%
• Dead Zone: Less Than 0.2%
• Transport Package: Carton/Wooden Box
• Specification: DN15~300
• Trademark: Grat
• Origin: Wuhan, Hubei, China
• HS Code: 8481804090
• Production Capacity: 10000 Per Month

Product Description

                  Central Line Soft Sealed Wafer Electric Butterfly Valve

Product description
As one of the most common valves, the wafer type electric butterfly valve is suitable for the medium of water, oil and other liquid medium. The valves with two-way seal function can be installed in any direction and not be affected by the spatial position and the medium flow.

The parameters

Body ratings	PN1.0/PN1.6Mpa
Body size	DN40-DN800
Seal material	EPDM\PTFE
Stem seal	NBR\HNBR
Body material	HT2000/ Gray cast iron, ductile cast iron/QT450
Disc material	Ductile cast iron QT450(electroplating, spray)\SUS304 Stainless steel\SUS316 Stainless steel
Body connections	Wafer
Flange	Special flange for butterfly valve
Power supply	AC220V 50HZ
Control signal	Switch action\modulation action 4~20mA 0~5V
Output signal	Switch position indication\passive contact feedback\feedback 0-1KΩ\4~20mA 0~5V
Operating pressure	PN1.6Mpa
Medium Temp	Below120 Celsius degree(The higher level of temperature resistance is prepared)
Ambient Temp	Below 50 Celsius degree
Flow coefficient(CV)	Please download the data on our website for reference. (Custom flow coefficient depends on the customer's requirement. )
Applicable medium	Water, oil, gas, corrosive medium

Installation Diagram

DN	L	D	K	N-φD	H2	H1	W1	W2
40	33	148	105	4-φ16	48	210	138	76
50	43	165	125	4-Φ18	80	314	160	137
65	46	185	145	4-φ18	89	327	160	137
80	46	200	160	8-φ18	95	333	160	137
100	52	220	180	8-φ18	114	385	196	145
125	56	250	210	8-φ18	127	400	196	145
150	56	285	240	8-φ22	139	442	255	182
200	60	340	295	8-φ22	175	480	255	182
250	68	395	350	12-φ22	203	522	255	182
300	78	445	400	12-φ22	242	567	255	182
350	78	505	460	16-φ22	267	598	255	182
400	102	565	515	16-φ22	297	648	255	182
450	114	615	565	20-φ26	315	678	255	182
500	127	670	620	20-φ26	348
600	154	780	725	20-φ30	444
700	165	895	840	24-φ30	528
800	190	1015	950	24-φ33	590

The main parts materials of the electric butterfly valve

Part name	Material
Body	WCB,QT450-10,HT200,HT250
Disc	WCB,QT450-10,HT200,HT250,SUS304,SUS316
Shaft	2Cr13
Seal ring	Nitrile oil-proof rubber,PTFE
Packing	Grafoil

The implementation standards of the electric butterfly valve

Manufacturing standards	GB/T 122387-89
Flange standards	GB9113-2000,GB17241.6-1998
Structure length standards	GB12221-89
Inspection standards	GB/T 13927-92

Control Diagram


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


Our Services
1.Professional consultation before customer place the order
2.In 24 hours response after sale
3.One year warranty
4.Safe packing for shipment
5.Welcome sample order

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