Triple Offset Flange Butterfly Valve
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Triple Offset Flange Butterfly Valve

The valve stem axis deviates from the disc center and body center at the same time, and the valve seat rotation axis has a certain angle with the valve body channel axis, which is called triple offset flange butterfly valve.

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Product Description

Customized Triple Offset Flange Butterfly Valve From Our Factory with High Quality in China
1.General information about Triple Offset Flange Butterfly Valve

The valve stem axis deviates from the disc center and body center at the same time, and the valve seat rotation axis has a certain angle with the valve body channel axis, which is called triple offset butterfly valve.
The traditional hard seal butterfly valve can't be completely leak free, and the leakage is large. In order to change this situation, the hard seal butterfly valve has been reformed many times, and triple offset flange butterfly valve was born.

Triple Offset Flange Butterfly Valve

    Triple Offset Flange Butterfly Valve


2. Structure of Triple Offset Flange Butterfly Valve

      Triple offset of the triple offset flange butterfly valve

  • The first eccentricity is that the valve shaft is located behind the valve plate shaft, allowing the seal to fully surround the entire seat.
  • The second eccentricity is that the center line of valve shaft deviates from the center line of pipeline and valve to avoid the interference of valve opening and closing.
  • The third eccentricity is that the cone axis of the valve seat deviates from the center line of the valve shaft, which can eliminate the friction effect in the process of closing and opening, and realize the uniform compression sealing effect around the whole valve seat.



Triple Offset Flange Butterfly Valve



3.Technical date of Triple Offset Flange Butterfly Valve


Type of Valve
Triple Offset Flange Butterfly Valve
DN(mm)
DN80~DN2200
PN(MPa)
1.0~1.6
Design Temperature Range
-253℃~815℃
Applicable Medium
Fresh water, Sewage, seawater, Oil and gas etc
Connection type:
Flang
Actuator type
Manual drive, Pneumatic,Hydraulic or electric Actuator
Sealing
Metal Hard Seal, Soft seal


4. Material of Triple Offset Flange Butterfly Valve


No
PART NAME
MATERIAL
1 Body
WCB
2 Stem
2Cr13
3 Seat
SS304
4 Seal Ring
SS304+Granphite
5 Retainer
Q235
6 Disc
WCB
7 Bushing
Self-lubricating
8 Yoke
WCB
9 Gland
WCB

5.Advantage of Triple Offset Flange Butterfly Valve


1) Good sealing performance improves the reliability of the system;
2) The friction resistance is small, the opening and closing is labor-saving and flexible;
3) It has long service life and can switch repeatedly;
4) Strong pressure and high temperature resistance, wide range of applications.
5) Double flow direction can bear pressure, installation without flow direction limit
6) More widely used


6. Application of Triple Offset Flange Butterfly Valve


Triple offset flange butterfly valve is widely used in metallurgical, electric power, petrochemical, water supply and drainage, municipal construction and other industrial pipelines with medium temperature ≤ 425 ℃ to regulate flow and cut off fluid.

Triple Offset Flange Butterfly Valve


7.About Tianjin Milestone Pumu & Valve Co., Ltd.



8.Welcome to c ontact us

[email protected]
Cell: +86 13400234217

9. FAQ

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