Dual plate swing check valve (TH-CKV-DPS)

Marine industry, Water supply and drainage, fire fighting, shipbuilding, water treatment and other systems, DN50 to D600, NBR/EPDM/VITON, Certificates & Approvals: DNV-GL, Lloyds, DNV, ABS, BV, Standards: EN 593,  API609


5 + 1 = ?

Dual plate swing check valve (TH-CKV-DPS)

Area of application

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

Data sheet of Dual plate swing check valve:

Type:Wafer, double disc
Size & Connections:DN50 to D600
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 API 594
  • Dimensions Conform to ANSI B16.5
  • Face to Face dimensions Conform to API 594
  • Testing Conform to API598

Material of Dual Plate Swing check valve Parts

Part nameMaterial
BodyCast Iron; Ductile Iron; Stainless Steel; Carbon steel
Disc / PlateStainless Steel; Carbon steel; Bronze
Shaft / stemStainless Steel Monel; Stainless Steel Inconel
Seat / liningNBR/EPDM/VITON
BoltsCarbon steel
NutsStainless steel

Dual plate swing check valve features

  •  Two valve plates are fixed on the valve body along a pivot
  • The two springs are installed on the butterfly plate above the sealing surface.
  • Pushed by the medium flow pressure, the spring is compressed, forcing the butterfly plate to open.
  • When the medium flows backwards, the spring forces the valve to close.
  • Good sealing performance
  • Small size and light weight
  • Wide range of applications
  • Valve plate closes quickly
  • Small closing impact
  • Both horizontal and vertical pipelines can be used, easy to install
  • Smooth flow channel, fluid resistance is small
  • Sensitive action and good sealing performance
  • The overall structureis simple and compact, beautiful appearance
  • Long service lifetimeand high reliability

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