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Wafer and Lugged Butterfly Valve

Wafer and Lugged Butterfly Valve

The wafer style butterfly valve is designed to maintain a seal against bi-directional pressure differential to prevent any backflow in systems designed for unidirectional flow. It accomplishes this with a tightly fitting seal; i.e., gasket, o-ring, precision machined, and a flat valve face on the upstream & downstream sides of the valve.

Lug-style valves have threaded inserts at both sides of the valve body. This allows them to be installed into a system using two sets of bolts and no nuts. The valve is installed between two flanges using a separate set of bolts for each flange. This setup permits either side of the piping system to be disconnected without disturbing the other side.

  • Top plate double drilled to fit ISO 5211 dimensions and standard secondary bolt circle dimensions
  • Unique centre-lock seat design virtually eliminates any seat movement during the seating and un-seating of the disc
  • Unique stem retention system to provide blow-out proof stem and easy assembly and disassembly of valve
  • Heavy duty one piece wafer and lugged wafer body designed to withstand specified pressures
  • Nylon coated high strength disc with hand polished disc edge and hubs ensures excellent corrosion resistance to several chemical media
  • Heavy duty square grooved seat design with moulded O-ring seals to serve as flange gasket
  • One piece stem with close tolerances double D drive eliminates the need for disc screws or taper pins
  • Heavy duty bearing absorbs the forces acting on the stem/disc assembly due to line pressure
  • Water works
  • Power plants
  • Sewage plants
  • Process industries
  • Chemical and petrochemical plants
  • Manufacturing Standard - API609/ BSEN 593 (BS 5155)
  • Size Range 50 to 600 mm
  • Pressure Ratings PN10, PN16
  • End Connection To suit ANSI # 125/ 150
  • Origin from "Canada"

Double Flanged Butterfly Valve

Double Flanged Butterfly Valve

The double flanged design is suitable for high pressure loading and is excellently suited for use in heavy industry, shipbuilding and waterworks.

  • Light-weight design resulting in lower cost and ease of handling.
  • Smaller face to face dimensions making it an economic.
  • Rigid and sturdy design with minimum loss of head across the valve
  • Compact, light weight, low operating torques
  • Eccentric seat geometry results in less wear and tear and longer life
  • Self cleaning and non jamming seat design
  • Gas tight shut-off
  • Self energizing seating design
  • Combined 'O' ring and 'U' cup seating on shaft
  • Through flow disc design for large size Butterfly Valves
  • Water works
  • Power plants
  • Sewage plants
  • Process industries
  • Chemical and petrochemical plants
  • Manufacturing Standard BS 5155 (BS EN 593)/ AWWA C504/ IS 13095
  • Size Range 50 to 4500 mm
  • Pressure Ratings PN6, PN10, PN16, PN20
  • Class -75, 150, 250
  • End Connection Double Flanged
  • Origin from "Canada"