Double Eccentric Double Flange Butterfly,72″,64″,56″,DN2000,DN1800,DN1600,DN1400,DN1200,DN1000

Short Description:

Sizes: DN50mm to DN3000mm

Pressure Range: PN (MPa): 1.0, 1.6, 2.0, 2.5




Body Seat:SS304/SS316


Suitable Mediums: Fresh water, sea water, gas, oils, acids, alkalis, etc

Suitable Temperature: -26-82C

Basic Design: BS5155/EN593

Face to Face Dimension: DIN3202 F4, EN558-1 Series 13 &14

Inspection & Testing: API 598,

Flanged End Dimension: DIN PN10/16/25, ANSI B16.1, BS4504, ISO PN10/16,BS 10 Table D, BS 10 Table E

Top flange: ISO 5211

Product Detail


Product Tags


1. High reliability of strength and rigidity.

2. Adopt double eccentric construction, small friction of seat and torque during opening or closing..

3. The disc is truss framed with plates, lower flow resistance..

4. Good seal function, 0 leakage.

5. The rubber sealing ring could be replaced on pipeline without removing the valve.(DN>=700)

6. The axle bearings are self-lubricated type, oil is not needed, frication drag is small during operation.

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