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.
What are Dual Plate Check Valves?
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.
Different Types of Dual Plate Check Valves:
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.
Retainer-less Check Valves:
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.
No-Slam Check Valves:
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.
Reduced-Flow Check Valves:
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.
Wafer Check Valves:
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.
Working Of Dual Plate Check Valves:
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.
Dual Plate Check Valve Applications:
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:
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:
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.
Wrapping Up:
Dual plate check valves are industry essentials. They are a hallmark of safety and efficiency. These check valves offer more resilient features than any other check valve type. When selecting the dual plate check valve, one should consider application needs. Plumberstar is a top check valve manufacturer and distributor in China. Their B2B plumbing network speaks up for their diversity. Contact Plumberstar to get the best customized solutions for check valves.