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Features :
1. Flange type double eccentric butterfly valve adopts double eccentric structure, which has the sealing function of closer and tighter, and the sealing performance is reliable.
2. The sealing pair material is stainless steel and NBR oil resistant rubber, with long service life.
3. The rubber seal ring can be located on the valve body or the butterfly plate. It can be applied to different media for users to choose.
4. The butterfly plate adopts frame structure with high strength, large flow area and small flow resistance.
5. The whole baking paint can effectively prevent corrosion and can be used in different media as long as the sealing material of sealing valve seat is replaced.
6. The double eccentric butterfly valve has the function of two-way sealing, which can be installed in any direction without the control of medium flow direction and the influence of space position.
7. Flange type double eccentric butterfly valve has unique structure, flexible operation, labor saving and convenience.
Nominal Diameter |
40mm~1200mm |
Flange standard |
ISO7005-1 1988 |
Max. pressure |
1.6mpa |
Shell pressure |
1.5x working pressure |
Seal pressure |
1.1xworking pressure |
Temp. |
NBR-10°~80° EPDM -20°~120° |
Material |
Stainless steel, carbon steel |
Standard:
Name |
Common standard |
Optional |
Design & manufacture |
GB/T12238-1989 |
ISO/DIN10631-91 |
Structure length |
GB/T12221-1989 |
ISO5752-88 |
Flange connection |
GB9113-1988 |
ISO7005. 2 |
Test |
GB/T13927-1992 |
ISO/DIN5208-87 |
Note : other standard are available.