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Description:
Dual plate check valves also known as 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. |
Brand:
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Product Information of Dual Plate Check Valve
1. Specifications:
Dual plate 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
Dual plate 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
2. Material and Design:
Dual plate 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.
Dual plate 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.
3. 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.
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.
4. Connection Type:
Dual plate 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.
Dual plate 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.
5. Dual Plate Check Valve Drawing:
Dual Plate Check Valve Drawing
6. Material List :
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7. Main Technical Parameter:
Norminal Pressure |
PN40 |
Strength Test Pressure |
6.0 MPa |
Seal Test |
4.4 MPa |
Air Seal Test |
0.6 MPa |
Max Working Temperature |
≤ 150°C |
8. Technical Specifications:
1. Basic design and manufacture according to ASME B16.34
2. Face to face dimensions according to DIN 3202
3. Inspection and tested according to API 598
1. Basic design and manufacture according to ASME B16.34
2. Face to face dimensions according to DIN 3202
3. Inspection and tested according to API 598
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Product Catalogue in pdf:
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FAQ Of Dual Plate Check Valves
What is the size range of dual plate check valves?
The size range of the dual plate check valves is from 1 1/2 inches to 6 inches.
What is dual plate check valves made of?
It is made of stainless steel SS316 or CF8M.
What is the working pressure of dual plate check valves?
The working pressure that dual plate check valves can withstand up to 300 psi.
What is the working temperature range of dual plate check valves?
The working temperature range of dual plate check valves is ≤ 150°C.
What are the differences between dual plate type and single plate check valve?
Dual plate check valves have two disk bodies while just one disk body for single plate check valves. Meanwhile, dual plate has thicker disk than single plate check valves. Thus, it is definitely heavier and higher cost compare to single plate check valves.
What is the function of the dual plate check valves?
Dual plate check valves allow the medium to flow in one direction only and to prevent flow of fluids to the opposite direction.
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