Wafer Type Dual Disk Check Valve
Description:
Wafer dual disk check valves are made in accordance to API 594 standard for low pressure application. It is designed with two spring loaded plates that hinged on the central pin. The plates need certain pressure of flow to open and close when the flow ceases and before the reverse flow occur. The arrow marking on the valve body is showing inlet port and outlet port so that the installation is compatible with the flow direction of pipeline system. 

Features:
  • Wafer dual disk type
  • Material: Stainless Steel SS316/CF8M
  • Size Range: 1 1/2" to 6" (DN40-150)
  • Working Pressure: 150#, 300#, JIS 5K, JIS 10K, PN10, PN16, PN40
  • Temperature Range: ≤425°C
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Wafer Dual Disk Check Valve Product Information

Specifications:
Wafer type dual disk check valve is designed to permit fluid flow in one direction only and prevent back flow from pipeline. It is design and manufacture according to API 594 standard. Inspection and testing had been carried out according to API 598 standard. Dual disk check valve is install between two flange, which the installation need to compatible with the flow direction of pipeline. When the fluid flow into inlet port, the pressure will push the plates open and fluid flow through the outlet port. Any back flow from outlet port will push the plates close to the seat ring. Dual disk check valve is installed on pipeline to carry fluids such as clean water or air instead of solid fluids such as wastewater or raw sewage.

Material and Design:
​Dual disk type check valve is available in stainless steel SS316 material. It is come with short face to face design which result in light weight and ideal for installation in tight spaces pipeline system. The seat ring is prevent leakage if there is any back flow. It can be available in NBR or stainless steel material. Do check with us for the availability of different seat ring material. 
Size and Pressure Rating:
The size for dual plate check valve is ranged from 1 1/2" to 6". For sizes above 6", do check with us for indent basic. It can withstand up to 40 bar, which is 580 PSI working pressure.

Connection Type:
Wafer dual disk check valve is suitable to install between two flanges, tighten by bolts and nuts on both flange. Referring to the flange size, 4 set or 8 set of bolts and nuts are needed for the installation process. 
Wafer Type Dual Disk Check Valve Drawing:
Wafer Type Dual Disk Check Valve
Wafer Type Dual Disk Check Valve
Material:
NO
​PART NAME
MATERIAL
1
Body
CF8M/SS316
2
Seat Ring
SS316
3
Wedge
CF8M/SS316
4
Spring
SS316
5
Pin
SS316
Ordering Information Available:

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Wafer Type Dual Disk Check Valves Catalogue available in pdf:
Wafer Dual Disk Check Valve Catalogue
Wafer Type Dual Disk Check Valve Catalogue
Low Pressure Valves
Low Pressure Valves Full Catalogue