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Double Eccentric Butterfly Valve

Double Eccentric Butterfly Valve

1. -ISO5211 top flange design

2. In addition to the wear-resistant standard V-ring packing, graphite high-temperature packing or low-leakage packing can also be selected

3. Bidirectional sealing performance

4. Optional rubber, PTFE,RPTFE, and fire-resistant PTFE valve seats are available

5. Negligible valve seat wear and low operating torque ensure a long service life of the valve seat

6. Active mechanical seals no longer rely on pipeline pressure

Structure: Lug type, wafer type, double flange type

Design standard: API 609

Structure length: API 609

Flange standards: ASME B16.5,ASME B16.47

Butt welding end standard: ASME B16.25

Inspection standard: API 598

Size: 2" to 120"(DN50 to DN3000)

Nominal pressure: ASME CLASS 150-600 (PN16 - PN100)

Valve body materials: carbon steel, stainless steel, alloy steel, copper, etc

Valve plate materials: carbon steel, stainless steel, alloy steel, copper, etc

Valve stem material: 410SS, 304SS&17-4PH, etc

Valve seat material: 316 SS hard seal, PTFE, asbestos board

Valve body type: wafer type, lug or double flange

Operation: Handle, gear, electric, pneumatic, hydraulic

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