Wafer type butterfly valve (TH-BTV-AW)

Marine industry, Water supply and drainage, fire fighting, shipbuilding, water treatment and other systems, DN50 to D1200, NBR/EPDM/VITON, Certificates & Approvals: DNV-GL, Lloyds, DNV, ABS, BV, Standards: EN 593,  API609


1 + 3 = ?

Wafer type butterfly valve (TH-BTV-AW)

Area of application

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

Technical Parameters /Properties of Wafer type Butterfly valve

Type:Multi-Flange Wafer
Size & Connections:DN50 to D1200
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
Certificates & Approvals: DNV-GL, Lloyds, DNV, ABS, BV Type Approval
3.1 & 3.2 Cert (on request)


  • Design and Manufacture Conform to EN 593、 API609
  • Flange dimensions Conform to EN 1092-2 PN10
  • Face to Face dimensions Conform to EN558 series
  • Topwork’s dimensions Conform to ISO5211
  • Testing Conform to API598、EN12266-1

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)
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 /PTFE /PFA
Taper pinsSS416/SS316


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

Wafer type butterfly valve features

  • Simple structure and easy operation
  • Easy installation and good sealing
  • Long service life and high reliability
  • Good interchangeability of parts and cost saving
  • Wafer type butterfly valve with concentric design
  • Using backless structure, Rubber fusion bonded on valve body
  • Replaceable, resilient seat
  • Streamlined disc, one-piece stem
  • Approved and registered by VdS, DVGW

Wafer type butterfly valve Photos


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