Double eccentric butterfly valve (TH-BTV-DE)

Marine industry, Water supply and drainage, shipbuilding, water treatment and other systems, DN1400 to D3800, NBR/EPDM/VITON, Certificates & Approvals: DNV-GL, Lloyds, DNV, ABS, BV, Standards: EN 593,  API609

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Double eccentric butterfly valve (TH-BTV-DE)

Area of application

Marine industry, Water supply & drainage, fire fighting, shipbuilding, water treatment and other systems

Data sheet of Double eccentric Butterfly valve

Type:Double eccentric
Size & Connections:DN1400 to D3800
Medium:Air, Inert Gas, Oil, Seawater, Waste water, Water
Materials:Cast Iron / Ductile Iron/ Carbon Steel / Stainless
Steel / Alu Bronze
Pressure Rating:PN10, PN16
Temperature:-30°C to 200°C
Seat/Lining: Replaceable Liner / Bonded Liner
NBR/EPDM/VITON
Certificates & Approvals: DNV-GL, Lloyds, DNV, ABS, BV Type Approval
3.1 & 3.2 Cert (on request)

Standards

  • Design and Manufacture Conform to EN 593、 API609
  • Flange dimensions Conform to EN2632
  • Face to Face dimensions Conform to DIN3202 F4
  • Topwork’s dimensions Conform to ISO5211
  • Testing Conform to ISO5208

Material of Parts

Part nameMaterial
BodyASTM A536 65-45-12/ASTM A126 B, EN-JL 1040 (GG-25), EN-JS 1030 (GGG-40), EN-JS 1049 (GGG 40.3), Stainless steel (1.4408), Alu-Bronze
Disc / PlateDI+NI,CF8/CF8M,C954/C958
EN-JS 1030 (GGG-40)
Stainless steel (1.4408)
Shaft / stemSS431/SS420/SS410/SS304
Seat / liningNBR/EPDM/VITON
Taper pinsSS416/SS316
BushingBRASS/PTFE
O-ringNBR/EPDM/VITON
KeySTEEL

Actuation

  • Worm-gear/hand-wheel
  • Electric-actuator
  • Pneumatic-actuator
  • Hydraulic-actuator

Double eccentric butterfly valve features

  • Double eccentric butterfly valve is also called high-performance butterfly valve, which is mainly used for water drainage in water plants, power plants, steel smelting, chemical industry, water source engineering, environmental facilities construction, etc.
  • It is especially suitable for waterway pipelines as regulating and shut-off equipment.
  • Compared with the center-line butterfly valve, the double eccentric butterfly valve is more resistant to high pressure, longer life and better stability.
  • Reasonable design, compact structure, easy assembly and disassembly, and easy maintenance.
  • The eccentric structure is adopted to reduce the friction of the sealing ring and prolong the service life of the valve.
  • Completely sealed with zero leakage. Can be used in ultra-high vacuum conditions
  • Replace the valve plate seal ring, butterfly plate, rotating shaft and other materials, applicable to multiple media and different temperatures

Double eccentric butterfly valve Photos

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