Flanged Double Eccentric Butterfly Valve
Double eccentric butterfly valve is a further improvement on the basis of single eccentric butterfly valve. The structure feature is that the stem axis deviates from the disc center and the body center. The effect of double eccentricity makes the butterfly plate quickly break away from the seat after the valve is opened, which greatly eliminates the unnecessary excessive extrusion and scraping phenomenon between the butterfly plate and the seat, reduces the opening resistance, reduces wear and improves the life of the seat. The significant reduction in scratching and the use of metal seats for double eccentric butterfly valves improves the use of high temperature butterfly valves. It mainly apply in water plant, power plant, steel smelting, paper making, chemical industry, food and other systems for water supply and drainage, especially suitable for water pipe, as a regulation and closure equipment.
1. Standard
Design & manufacturing |
EN593/BS5155 |
Face to face |
EN558-1 |
Flanged ends |
EN1092-2, ISO7005-2, DIN2501 |
Inspection & testing |
EN12266-1 |
2.Technical Specification
Size |
DN50-4000 |
Working pressure |
PN10 / PN16 |
Applicable temperature |
0℃~80℃ |
Operation |
Gearbox / Electric actuator |
3.Main parts material
Part Name |
Material |
Body |
Ductile Iron/Stainless steel |
Disc |
Ductile Iron + EPDM |
Stem |
SS420/SS410/SS416 |
Seat |
EPDM |
Fasteners |
Carbon steel/Stainless steel |
4. Features
- reasonable design, compact structure, easy assembly and disassembly, easy maintenance.
- Adopt eccentric structure, reduce the friction of sealing ring, prolong the service life of valve. The seat can be repaired on site, no needing dis-assembly
- Completely sealed, leakage is zero, it can be used in ultra-high vacuum conditions
- Replace the valve disc sealing ring, butterfly plate, rotating shaft and other materials, thus can be used in a variety of media and different temperatures
Send product request
Other supplier products
Y Strainer | Y-type strainer is an indispensable filter device in the pipeline system of conveying medium. Y-type strainer is usually installed at the inlet end... | |
Single Orifice Air Release Valve | Single orifice valve is mounted on the top point or the place where the air is closed in the pipeline, to remove the air in the pipe, making sure t... | |
Wafer Type Butterfly Valve | Wafer type butterfly valve is one butterfly valve with simple structure, small size and light weight. It is mainly composed of body, disc, rotating... | |
Rubber Seated Flapper Check Valve | Rubber seated check valve is mainly made up of body, cover and disc, and the disc adopts steel plate coated with rubber. It mainly applies to the w... | |
Rising Stem Resilient Seated Gate Valve | Rising stem resilient seated gate valve is made of good ductile iron material. The wedge has the function of exchange. Good sealing effect can be a... |
Same products
Клапан | Seller: RongTengXinNuo(Tianjin) International Trade Co.,Ltd | Клапан | |
Class 300 Valve | Seller: GangYe Group Co.,Ltd. | Class 300 valves have a pressure rating of 300 pounds per square inch (psi) or 20.7 bar, allowing... | |
Class 3000 Industrial Valve | Seller: GangYe Group Co.,Ltd. | Wafer Body, Full Port Design, Flanged End Class 3000 Ball Valve. A ball valve class 3000pressure-... | |
Class 2500 Industrial Valve | Seller: GangYe Group Co.,Ltd. | Class 2500 valves can be used for both on-off and throttling applications. The specific valve typ... | |
Class 150 Valve | Seller: GangYe Group Co.,Ltd. | globe valve class 150is a pressure rating designation defined by standards organizations, such as... |