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What is a Dual Plate Check Valve, and how does it function in a pipeline system?
A Dual Plate Check Valve is a mechanical valve that regulates fluid flow and prevents backflow in a pipeline system. It consists of two half-circle-shaped plates hinged in the centre, which swing open to allow forward flow and automatically close to block reverse flow. The valve operates based on the principle of pressure difference, meaning that when the pressure on the inlet side is higher than the outlet side, the plates open, permitting fluid to flow through. On the other hand, if the pressure on the outlet side exceeds that on the inlet side, the plates promptly close, preventing backflow and protecting the system from potential damage. This efficient functionality makes Dual Plate Check Valves a popular choice in various applications requiring reliable, low-pressure drop and compact check valves.
What are the key advantages of using a Dual Plate Check Valve over other check valves?
The utilization of a Dual Plate Check Valve offers several key advantages over other types of check valves. Its compact and lightweight design makes it an ideal choice for space-constrained installations, enabling more efficient use of available space in a pipeline system. Secondly, the dual plate configuration ensures a swift and smooth response to changes in the flow direction, resulting in reduced water hammer and pressure surges, which helps to protect the pipeline and connected equipment from potential damage.
Additionally, the hinge mechanism allows for quick and tight closure, minimizing the risk of backflow and leakage, thus ensuring enhanced system safety and performance. Another advantage lies in its versatility, as Dual Plate Check Valves can be installed in horizontal and vertical orientations, catering to diverse system configurations. These valves typically exhibit lower pressure drop than other check valve types, contributing to more efficient and cost-effective fluid flow in the pipeline. Collectively, these benefits make Dual Plate Check Valves a preferred choice in various industrial and commercial applications where reliability, efficiency, and space optimization are paramount concerns.
| Design Standards | API594/ API6D |
|---|---|
| Size Range | NPS 2 to NPS 48 |
| Valve Size | 2″–76″ DN50–DN1900 |
| Pressure Class | 150LB to 2500LB PN10 to PN250 |
| Materials | WCB, CF8, CF3, CF8M, CF3M, B148, A105, LF2, F304, F316 |
| Design and Manufacturing Standards | API6D |
| Face to Face Standards | ASME B16.10 |
| Flange Dimension Standards | ASME B 16.5, ASME B16.47, EN1092-1 |
| Pressure Test Standards | API598, API 6D |
| Fire Safety Test Standards | API607 |
| Process Connection Types | Wafer Type, Flange Type, Lug Type |
| Bore | Full Bore |
| Application & uses | Water distribution Water treatment Wastewater Dams Power plants Industry |
| NPS | CLass | |||||
| 150 | 300 | 600 | 900 | 1500 | 2500 | |
| 2 | 60 | 60 | 60 | 70 | 70 | 70 |
| 2.1/2 | 67 | 67 | 67 | 83 | 83 | 83 |
| 3 | 73 | 73 | 73 | 83 | 83 | 86 |
| 4 | 73 | 73 | 79 | 102 | 102 | 105 |
| 6 | 98 | 98 | 136 | 159 | 159 | 159 |
| 8 | 127 | 127 | 165 | 206 | 206 | 206 |
| 10 | 146 | 146 | 213 | 241 | 248 | 254 |
| 12 | 181 | 181 | 229 | 292 | 305 | 305 |
| 14 | 184 | 222 | 273 | 356 | 356 | |
| 16 | 191 | 232 | 305 | 384 | 384 | |
| 18 | 203 | 264 | 362 | 451 | 468 | |
| 20 | 219 | 292 | 368 | 451 | 533 | |
| 24 | 222 | 318 | 438 | 495 | 559 | |
| 30 | 305 | 368 | 505 | |||
| 36 | 368 | 483 | 635 | |||
| 42 | 432 | 568 | 701 | |||
| 48 | 524 | 629 | ||||
Dual Plate Check Valves in Distillery Plants
Dual Plate Check Valves in Sugar Industries
Dual Plate Check Valve in Process Industries
Dual Plate Check Valve in Power Plants
Dual Plate Check Valve in Refineries
Dual Plate Check Valve in Petrochemical Plants
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Stainless Steel Dual Plate Check Valve
Stainless steel valves are especially tough since they are made of steel and have a high level of corrosion resistance. Steel valves can endure temperatures that are both very high and very low. Compared to steel valves, brass or plastic valves are often only rated for a smaller range of operating temperatures.
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Carbon Steel Dual Plate Check Valve
Because of their excellent resistance to the corrosive tendencies of water and other liquids, carbon steel valves are used in hydraulic-based applications. Due to its high carbon content, it has excellent mechanical properties, strengthens the valve mechanism, and increases the valve mechanism's lifespan.
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Cast Iron Dual Plate Check Valve
Cast iron valves are commonly used in numerous applications, including utility systems in various industrial plants, air conditioning and plumbing in buildings, fire fighting equipment, and water and sewer lines.
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Alloy Steel Dual Plate Check Valve
Alloy Steel Valves made from components that meet or exceed international and national requirements. A The main quality of alloy steel valves is three continuous flow of processes from foundry operation.
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