Wafer type butterfly valve (D371X)

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Description: A butterfly valve is a valve which can be used for isolating or regulating flow. The closing mechanism takes the form of a disk. Operation is similar to that of a ball valve, which allows for quick shut off. Butterfly valves are generally favored because they are lower in cost to other valve designs as well as being lighter in weight, meaning less support is required. The disc is positioned in the center of the pipe, passing through the disc is a rod connected to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. Unlike a ball valve, the disc is always present within the flow, therefore a pressure drop is always induced in the flow, regardless of valve position.

Standards:

  Design: EN 593, API 609.

  Face to Face: EN 558-1, series 20.

  Flange: BS EN 1092, ANSI B16.5.

Materials: Ductile iron, cast iron

Nominal sizes: DN80—300mm

Pressure: PN6/10/16

Corrosion protection: Inside and outside FBE.

Suitable medium: Water, oil, steam.

Package: wooden case with plastic layer, wooden pallets with plastic layer, steel crates.

Features

  Inside & outside fusion bonded epoxy coating

  Ductile iron construction design

  Replaceable lining materials

  Bubble tight

  Ease of operation

  Long service life and no frequent maintenance

  Multifunction

Products

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