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Flanged Butterfly Valve 1
Butterfly Valves

Flanged Butterfly Valve

Price:Quoted by size, pressure rating, body material and configuration
  • Size RangeDN100 – DN2000 (4″ – 80″)
  • Pressure ClassPN 10 / PN 16 (Class 150)
  • Body MaterialWCB / CF8 / ductile iron
  • Disc304 / 316 stainless steel
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The flanged butterfly valve has integral flanges at both ends and is bolted to the pipeline flanges, so no wafer clamping is needed during installation. Sealing is more reliable and the installation requires less coaxiality, which makes the valve suitable for large diameters and important lines. The double-flanged construction has good rigidity and can be fitted with electric or pneumatic actuators for remote control. It is widely used in large-diameter water supply and drainage, circulating water, flue gas and air lines, and is the main valve type for shutoff and regulation in large water systems.

Features

· Double-flanged integral construction, low alignment requirement, reliable sealing · Good rigidity, suitable for large-diameter critical lines · Centreline resilient seat, bubble-tight shutoff · Suited to electric / pneumatic actuators for remote control · Replaceable seat for easy maintenance · Economical for large-diameter water systems

Technical Specifications

Size Range
DN100 – DN2000 (4″ – 80″)
Pressure Class
PN 10 / PN 16 (Class 150)
Body Material
WCB / CF8 / ductile iron
Disc
304 / 316 stainless steel
Seat
EPDM / NBR / PTFE
End Connection
Flange (ASME B16.5 / EN 1092-1)
Temperature Range
−20 ~ +120 °C (soft seat)
Design Standard
API 609 / ISO 5752 / EN 593
Operation
Lever / worm gear / electric / pneumatic

Applications

For municipal and industrial large-diameter water supply and drainage, circulating cooling water, flue gas desulphurisation and air lines, used for shutoff and regulation of high-flow media.

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