Double Offset Butterfly Valve
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Double Offset Butterfly Valve

Milestone Valve Co. Ltd. is a manufacturer specializing in the production of valves. It independently designs, develops, and produces various industrial valves such as butterfly valves, gate valves, ball valves, and check valves; the products are widely used in water conservancy, chemical, petroleum, agriculture, construction projects, etc. industry. Among them, the Double offset butterfly valve is a new type of butterfly valve independently researched and developed, which can adapt to more media and a wider range of environmental requirements, and is more resistant to high pressure in performance, longer life, and better stability.

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Product Description

China Double Offset Butterfly Valve Manufacturers, Suppliers and Factory with Cheap Price
1.Introduction of Double Offset Butterfly Valve

Milestone Valve Co. Ltd. is a manufacturer specializing in the production of valves. It independently designs, develops, and produces various industrial valves such as butterfly valves, gate valves, ball valves, and check valves; the products are widely used in water conservancy, chemical, petroleum, agriculture, construction projects, etc. industry. Among them, the Double offset butterfly valve is a new type of butterfly valve independently researched and developed, which can adapt to more media and a wider range of environmental requirements, and is more resistant to high pressure in performance, longer life, and better stability.

Double Offset Butterfly Valve


2. Technical Parameters of Double Offset Butterfly Valve

Type of Valve
Double offset butterfly valve
DN
DN100~DN4000
PN(MPa)
0.6~1.6
Design Temperature Range
-10℃~250℃
Applicable Medium
Water, oil, gas, and various corrosion medium
Connection type:
Flanged, Wafer
Actuator type
Manual drive, Pneumatic, Hydraulic or electric Actuator
Structure
Double eccentric
Sealing
Metal Hard Seal, Soft seal

Spare Parts
Material
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


Double Offset Butterfly Valve

3.Structural Features of Double Offset Butterfly Valve

1) The first eccentricity of the Double offset butterfly valve means that the stem axis deviates from the center of the sealing surface, that is, the stem axis of the Double offset butterfly valve is behind the disc surface. This eccentricity makes the contact surface of the butterfly plate and the valve seat both sealing surfaces, which fundamentally overcomes the inherent shortcomings of the centerline butterfly valve, thereby eliminating the possibility of internal leakage at the upper and lower intersections between the stem shaft and the sealing valve seat.
2) The other eccentricity of the Double offset butterfly valve means that the center of the water hole of the valve body is offset from the axis of the valve stem, that is, the valve stem axis of the Double offset butterfly valve divides the butterfly plate into two parts with one side and one side less. This eccentricity enables the butterfly plate to quickly break away from or approach the valve seat during the opening and closing process, reducing the stroke friction between the butterfly plate and the sealing valve seat, reducing wear, reducing the opening and closing torque, and prolonging the service life of the valve seat.

Double Offset Butterfly Valve


4. Packaging and Delivery


5. FAQ

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


6.Contact Information

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