The flanged butterfly valve whose stem axis deviates from the center of the disc and the center of the body at the same time, and the sealing pair is oblique cone is called Eccentric Flanged Butterfly Valve. The Eccentric Flanged Butterfly Valve produced by Milestone Valve Company has a double eccentric flange butterfly valve and a triple eccentric flange butterfly valve. Compared with ordinary butterfly valves, the Eccentric Flanged Butterfly Valve has an eccentric structure design. The sealing surface is instantly separated when the valve is opened and closed, reducing friction. Extend the service life. It can be used in petroleum, chemical, water supply and drainage, metallurgy, pharmaceutical and other industries, and can be applied to a variety of corrosive and non-corrosive gases, liquids, and fluid-filled pipelines.
|Type of Valve||Eccentric Flanged Butterfly Valve|
|Design Temperature Range||-10℃～120℃|
|Applicable Medium||Water, oil, gas, and various corrosion medium|
|Actuator type||Manual drive, Pneumatic,Hydraulic or electric Actuator|
|Structure||Double eccentric, Three eccentric|
|Sealing||Metal Hard Seal, Soft seal|
|Body||Gray Iron, Ductile Iron, Al-bronze, Stainless Steel, Carbon steel|
|Disc||Ductile iron, Stainless Steel, Al-bronze|
|Shaft||Cast Iron, Stainless Steel|
|Seat||Rubber, stainless steel, stellite|
|Stem||Stainless steel, duplex steel|
|Sealing||O-ring, NBR, EPDM, FKM|
1) Eccentric Flanged Butterfly Valve has simple structure, small size, short structure length, small size and light weight;
2) When the Eccentric Flanged Butterfly Valve is fully opened, the effective flow area of the valve seat channel is large, and the fluid resistance is small;
3) The opening and closing torque of the Eccentric Flanged Butterfly Valve is relatively small. Because the disc plates on both sides of the rotating shaft are basically the same under the action of the medium, the direction of the torque generated is opposite, so the opening and closing is more labor-saving;
4) The Eccentric Flanged Butterfly Valve is flexible and labor-saving in operation, and can choose manual, electric, pneumatic, and hydraulic modes;
1) Double eccentric flange butterfly valve: currently the most widely used double eccentric flange butterfly valve. Double eccentricity enables the butterfly plate to leave the valve seat immediately after the valve is opened, which reduces the opening resistance, reduces wear and improves the life of the valve seat.
2) Triple eccentric butterfly valve: The so-called third eccentricity means that the shape of the sealing pair is not a positive cone, but an oblique cone, which has a better sealing effect and can be used in the construction of hard-sealed large municipal pipelines.
1. Can i have a sample order for valve ?
A: Yes, we welcome sample order to test and check the quality, Mixed sample are accepted.
2. Do you have any MOQ limit for valve order ?
A: Low MOQ, 1 PC for sample checking is avaible.
3. Could you offer OEM service ?
A: Yes, OEM is availble.
4. How about the payment ?
A: We normally accept 30% deposit, and balance will be paid before shipping. L7C is OK
5. Whafs the delivery time of your butterfly valves?
A: For most of the sizes,DN50-DN600,we have stock of valve parts,it*s possible to deliver in 1-3 weeks,to nearest seaport Tianjin.
6. Whafs the warranty of your products?
A:We normally offer 12 months of warranty in service or 18 months since shipping date.
7. What is your products standardization?
A: GB/T12238-2008, JBfT 8527-1997, API 609,EN 593-1998, DIN 85003-3-1997