Flanged Butterfly Valves: Introduction, Technical Parameters & Main Component Materials

Flanged Butterfly Valves are a type of butterfly valves with flanged connection, designed in accordance with National Standard (GB), American Standard (API/ANSI) or German Standard (DIN). Both the inlet and outlet surfaces are designed with flanges. A flange is a flat surface, which makes the connection between the valve and the pipeline very easy and leak-free.

Technical Parameters

• Nominal Diameter: DN50mm - 2000mm

• Pressure Range: PN0.6 - 10Mpa

• Temperature Range: Carbon steel: -29℃ - 425℃; Stainless steel: -40℃ - 600℃

• Actuation Methods: Worm gear drive, Pneumatic, Electric Actuated

Main Component Materials

• Valve Body: Cast Iron, Cast Steel, Stainless Steel, Chrome-Molybdenum Steel, Alloy Steel

• Butterfly Disc: Cast Steel, Alloy Steel (hard chrome plated), Stainless Steel, Chrome-Molybdenum Steel

• Sealing Ring: Stainless Steel, Polyester, Wear-Resistant Materials

• Valve Stem: 2Cr13, 1Cr13 Stainless Steel, Chrome-Molybdenum Steel

• Packing: Flexible Graphite

Applicable Medium

Water, Steam, Oil, Air