Silent check valve (TH-CKV-SLT)

Marine industry, Water supply and drainage, fire fighting, shipbuilding, water treatment and other systems, DN40 to D600, NBR/EPDM/VITON, Certificates & Approvals: DNV-GL, Lloyds, DNV, ABS, BV, Standards: EN 593,  API609


1 + 3 = ?

Silent check valve (TH-CKV-SLT)

Area of application

Water supply and drainage, water treatment, fire-fighting and other systems

Data sheet of Silent check valve:

Type:Wafer, double flange
Size & Connections:DN50 to D600
Medium:Waste water, Water, seawater…
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 Silent 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

Silent check valve features

  • It can be installed vertically or horizontally, the valve flap is flexible to open and close, and it runs smoothly, with low closing noise, safety, and few faults
  • The valve flap is spring loaded, and its rapid closing can effectively reduce the water hammer pressure and the sealing performance is good
  • It has small size, light weight, small fluid resistance, fatigue resistance and long service life.

Silent check valve Photos


single plate swing check valve (2)
double door check
tilting disc swing check valve (3)
lifting check valve (2)
ball check valve (2)