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Flange Type Double Eccentric Butterfly Valve
Product overview
This series of butterfly valves are suitable for water supply system, power plant and industrial pipeline as two-way opening and closing and regulating equipment, and its regulating range is 0 to 90 degrees. The butterfly plate of this series of butterfly valvesIn order to ensure the strength and low water loss of the butterfly plate under the impact of water flow, the circulating design and high strength nodular cast iron are adopted. Ordinary version for rubber soft seal seat, high performance butterfly valve sealing surfaceIt adopts elastic metal hard seal design.
Product Features
1. The butterfly plate adopts double plate truss structure with high strength and low water loss;
2. The stainless steel valve seat is fixed in the inner cavity of the valve body and never falls off;
3. The sealing ring is fixed on the butterfly plate by pressing plate, and the compression amount is adjustable and easy to replace;
4. With special tangential pin connection, the butterfly plate and the valve rod can be tightly combined without loosening;
5. The axial position of butterfly plate is adjustable;
6. Oil free bronze self lubricated bearing reduces torque;
7. "V" type rubber, self tightening shaft seal design;
8. Non toxic epoxy resin electrostatic spraying;
9. A variety of drive configuration: worm gear, electric, pneumatic.
Execution Standard
Design spec：GB/T12238
Face to Face：GB/T12221
Flange end：GB/T17241.6
Upper flange standard：ISO5211
Test & check：GB/T13927
Performance Parameter
Nominal diameter：DN300~2000mm
Nominal Pressure：PN1.0～1.6MPa
Applicable media：water
Applicable temperature：0≤85℃
Main materials：Ductile iron
