Instruction:
Double eccentric butterfly valve is widely used,the effect of double eccentricity greatly eliminates unnecessary excessive extrusion and scratching between the disc and the valve seat, reduces wear, and improves the performance of the valve. This Butterfly valve can drive with method of Worm Gear, Pneumatic and Electic Actuated...
Technical Parameters：
Size | DN100-DN900 | DN1000-DN1600 |
Working pressure | 16Bar | 10Bar |
Shell | 24Bar | 15Bar |
Seal | 18Bar | 11Bar |
Operating Temperature | ||
Operating Environment | Ballast and bilge system Chemical processing Desalination plants Drilling rigs Drinking water Dry powder Food and beverage Gas plants HAVC Mining industry Paper industry Sand handling Seawater Sugar industry Thermo technical water treatment Waste water | |
Driving method | Worm Gear Electric Pneumatic | |
Main Material:
Name | Material |
Body | Cast Iron Ductile Iron Carbon Steel Stainless Steel AL-Bronze |
Disc | Ductile Iron Carbon Steel Stainless Steel AL-Bronze |
Shaft | Stainless Steel Monel K500 |
Seat | Stainless Steel |
Executive Standard:
Design Standard | EN 593 , MSS SP67 API 609 BS5155 |
Inspection & Test | API 598 ISO 5208 EN 12266 |
End Standard | ANSI B16.1 CL. 125LB & B16.5 CL. 150LB AS 2129 Table D & E BS 10 Table D & E DIN 2501 PN6, PN10 & PN16 EN 1092 PN6, PN10 & PN16 ISO 2531 PN6, PN10 & PN16 ISO 7005 PN6, PN10 & PN16 KS B 1511 / JIS B 2210 5K & 10K MSS SP44 CL. 150LB AWWA C207 SABS 1123 Table 1000/3 & Table 1600/3 |
Face to Face | ISO 5752 , EN 558-1,series 13 or series 14 |
Top Flange | ISO 5211(according customers needs) |
Conclusion:
Double Eccentric Butterfly Valves are a type of industrial valve that often used in water supply systems below ground as an alternative to gate valves. They are also cost-effective, especially for larger dimensions. The stem and disc are offset from the center, which minimizes contact between the two. They can be used to control flow, but they can't be guaranteed to be 100% tight for long-term control. Butterfly valves are known for being easy to install, quick to operate, and inexpensive.
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