A check valve is a device that regulates the liquid flow in one direction and prevents backflow. They are essential to serve safety purposes in different industries. The dual plate check valve is a vital check valve type. This article will provide a comprehensive guide on double plate check valves’ types, working, and applications. Let’s start by understanding what are dual plate check valves.
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Dual plate check valves have two plates arranged in the center and two plugs. The symmetry of these plates decides the operation of the valve. They regulate fluids by ensuring no blockages occur due to the backflow of fluids. It often has an automatic function that keeps a check on the flow.
Dual plate check valves open in case of forward flow and close for backflow. They maintain the mechanical construction of the system by saving it from backflow damage. They come with a variety of end connection options. They are lightweight and compact, which makes them easy to install and operate. There are different types of dual plate check valves. Let’s explore them.
These valves are excellent to stop water from flowing back and forth in containers. It reduces the concerns like floods or damages. There are different types of dual plate check valves, each with specific functions.
These valves do not have any holes from within their bodies. It means you do not need to drill it for installation. This feature is helpful for applications that allow corrosive gases or liquids. Retainerless valves are also known as lug-style check valves. We can connect them with the help of bolts to pipe flanges.
These valves use a spring mechanism to prevent backflow from pipelines. The valve opens when the pressure on the inside exceeds the downstream pressure. When the valve receives reverse pressure buildup, it immediately closes the valve to avoid backflow. This quick mechanism is effective in large pipelines or industrial flow management where backflow can be damaging.
This type of dual plate check valve is a non-return valve. They are the simplest type, which allows unidirectional flow. They keep a check and balance on backflow prevention. There are some reliable check valve manufacturers you can consult before buying. Plumberstar is there to hear your concerns and provide custom solutions.
It is a particular type of dual-plate check valve with a sleek design. Their structure is so that it fits between flanges, leaving no need for flanges. They are ideal for systems with little room. They suit a variety of applications, including water supply, food, oil and gas, etc.
The construction of these valves makes operation effective. The working of dual plate check valves depends on the two plates loaded with springs. A hinge mechanism holds both plates in the center of the valve. On arrival of the fluid, the valve opens in one direction and lets the fluid move across.
Suppose the valve detects reverse flow, fluid pressure, and spring tension, resulting in plate closure. This results in closing the valve and reducing the risks of surges to the system. Working of the dual plate check valve is easy to understand and needs less maintenance.
The versatility of these valves makes them suitable for different industries. Some of the prominent dual plate check valve applications are as follows.
Chemical Processing:
Dual plate check valves maintain unidirectional flow in chemical processing systems. It avoids cross-contamination and ensures safe handling of corrosive chemicals.
Power Generation:
In the power generation industry, they prevent backflow damage to turbines. They save the system from hammering and allow a smooth power generation process.
Oil and Gas Industry:
Oil and gas is one of the diverse industries where dual plate check valve applications lie. They prevent the backflow of crude oil, natural gas, etc, for an efficient process.
Water Supply Systems:
Reverse flow in municipal water supply systems can damage the equipment. A dual plate check valve maintains the system integrity by avoiding reverse flow from pipelines.
Wastewater Treatment:
These valves also apply in wastewater treatment plants. Backflow of wastewater can be problematic, but dual plate check valves ensure safe operations.
Fire Protection System:
Equipment safety is crucial in fire protection systems. Suitable check valves can do the job by reducing slamming and hammering.
Dual plate check valve features include their properties, making them the best choice. Before selecting a double plate check valve, here are a few of their parts.
Compact Design:
These valves are light in weight and have a sleek design. Their structure allows less pressure drop. Moreover, they are easy to manage and install and have the best dual plate check valve feature.
Least Pressure Drop:
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These check valves maintain the fluid velocity. The valve opens via plates or discs that allow minimum resistance to flow. Similarly, the closing of the valve is also a smooth operation. This work results in the slightest pressure drop across the valve body.
Reduced Water Hammer:
The plates in the valve which operate working opens and closes quickly. It reduces the risk of the hammer. One of the best dual plate check valve features is a lower hammer rate than other check valve types. Water hammering can cause equipment loss, but these valves prevent it.
Easy-To-Install:
Dual plate check valves are ideal for industries due to low energy consumption. Their design makes them easy to install. You can install them via flanges without the need for extension rods. They fit within the small spaces with ease.
DN: 2 in - 60 in
Pressure: 16 bar - 420 bar
Temperature: -29 °C - 425 °C
... lower energy loss. - The reduced weight of a dual-plate valve disc versus the full-bodied swing check is a major factor in minimizing slamming and water hammer–making ...
dual plate check valve 379
DN: 50 mm - 300 mm
Pressure: 16 bar
Temperature: -10 °C - 120 °C
With a cast iron body that integrates a bronze swing, this item is undoubtedly one of the finest on the market. It comes with a spring and pin made entirely of stainless steel and an NBR gasket.The device is easily assembled by anyone ...
dual plate check valve ECR
DN: 40 mm - 600 mm
Pressure: 10 bar - 25 bar
DN 40 - 600 PN 10 - 25 Body: EN-JL, EN-JS Coating: Epoxy For water in plants, buildings and valve chambers. Wafer-type double wing version Extremely short type Simple and robust design Can be used in horizontal ...
dual plate check valve 910WB
DN: 2 in - 24 in
Pressure: 200 psi
... InternationalTM Model 910WB-LF Cast Iron Wafer Check Valve provides full flow capabilities. The Model 910WB-LF Wafer Check Valve can be reliably installed in plumbing ...
dual plate check valve 372 series
DN: 50 mm - 600 mm
Pressure: 10, 16 bar
Temperature: -10 °C - 180 °C
The 371 series of dual-plate check valve is integrated with an anti-abrasion stainless steel spring . It is built with a vulcanized body gasket. A hoisting eye ranging ...
dual plate check valve CV10
DN: 50 mm - 400 mm
Pressure: 16, 25, 40, 64, 100 bar
Temperature: -20 °C - 200 °C
Flapcon® CV10 Series spring double check valve design is manufactured to withstand high operating pressures. The discs are opened 85 ° to provide positive closing. Sealing materials can be changed for ...
dual plate check valve CV-122
DN: 40 mm - 1,200 mm
Pressure: 150 bar
Temperature: -20 °C - 120 °C
A check valve, clack valve, non-return valve or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through ...
dual plate check valve 56B
DN: 50 mm - 300 mm
Pressure: 16, 10 bar
The KTN 56B is our wafer ends double disc check valve. Made of cast iron GG25, The range of dimensions is from DN 50 to DN 300. The pressure range is PN10 / 16. PTFE bearings. Double disc, spring and ...
dual plate non-return valve DFC
DN: 50 mm - 300 mm
Pressure: 10, 16 bar
Temperature: 0 °C - 80 °C
... Make sure to install a minimum of 5 x nominal diameter of straight pipeline in front of and behind the dual plate check valve. Do not install the valves ...
dual plate check valveDN: 50 mm - 1,000 mm
Use : Check valve intended for networks for clean water distribution, filtration system, fire protection networks, irrigation. It ensures the protection of pumps against flow inversion. Horizontal or ...
dual plate check valve 71 series
DN: 50 mm - 1,350 mm
Pressure: 0 bar - 10.3 bar
Temperature: 0 °C - 178 °C
Class 125 Cast Iron Sure Check™ Valves Size: 2 to 54 in. (50 to mm) Description: Designed for liquids and gases where flow reversal can cause surge and water hammer. Elastomer seats provide bubble-tight ...