Flanged Concentric Butterfly Valve

Flanged concentric butterfly valve is one type of central lined flanged type butterfly valve. Its structural feature is that the stem axis, disc center and body center are in the same position. It’s with simple structure and convenient manufacture. Flanged concentric butterfly valve is a component used to realize on-off and flow control of the pipeline system, which has been widely used in many fields such as hydropower, metallurgy and so on.

1.Standard

Design & manufacturing EN593/BS5155
Face to face EN558-1
Flanged ends EN1092-2,   ISO7005-2, DIN2501
Inspection & testing EN12266-1

2.Technical Specification

Size DN50-600
Working pressure PN10 / PN16
Applicable temperature 0℃~80℃
Operation Gearbox /Electric actuator

3.Main parts material

Part Name Material
Body Ductile Iron
Disc Ductile Iron/SS304/SS316
Stem SS420/SS410/SS416
Seat EPDM
Fasteners Carbon steel/Stainless steel

4. Features

  • Novel and reasonable design, unique structure, light weight, fast opening and closing.
  • Small operation torque, easy operation, labor-saving dexterity.
  • Whether vertical or horizontal installation is OK, convenient maintenance.
  • Linear flow curve, excellent regulation.
  • Sealing can be replaced, sealing performance is excellent, zero leakage.

5. Application

  • ​Water works, water projects
  • Environment protection​
  • Public facilities​
  • Power plant​
  • Constructionindustry
  • Petroleum, chemical industry
  • Steel work, metallurgy​
  • Paper plant​
  • Food & beverage​
  • ​​​​​​​​ Water treatment plant

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