Dual Plate Check Valve Manufacturer

Dual Plate Check Valves VS. Swing Check Valves:

1. Design and Operation:

Dual Plate Check Valve: This check valve consists of two plates or discs hinged in the center and positioned in the flow path. The plates open in response to forward flow, allowing fluid to pass through. The plates quickly close to prevent backflow when reverse flow or back pressure occurs. As mentioned earlier, the closure mechanism can be either spring-loaded or non-spring.

Swing Check Valve: A swing-type check valve has a hinged disc that swings on a pivot or hinge mechanism. The disc can swing in a 180-degree arc, opening in the forward flow direction. When reverse flow or back pressure occurs, the disc swings back and seals against the valve seat to prevent backflow.

2. Flow Characteristics:

Dual Plate Check Valve: The dual plate design of this valve offers streamlined flow characteristics and low-pressure loss. It provides a straight-through flow path when the plates are open, resulting in minimal turbulence and pressure drop.

Swing Check Valve: The swing disc of a swing check valve can impede the flow path when it swings open, causing some turbulence and pressure drop. It has a 90-degree rotation from fully closed to fully open, which can create more resistance to flow compared to dual plate check valves.

3. Size and Weight:

Dual Plate Check Valve: Dual plate check valves have a compact and lightweight design, making them suitable for applications where limited space or weight restrictions apply.Swing Check Valve: Swing check valves tend to be bulkier and heavier compared to dual plate check valves due to the swinging disc and hinge mechanism. They require more space for installation.

4. Installation Flexibility:

Dual Plate Check Valve: Dual plate check valves can be established in horizontal and vertical channels. They are available in wafer or lug-type configurations, providing flexibility for installation.

Swing Check Valve: Swing check valves are typically installed in horizontal pipelines. Due to the swinging disc and the potential for significant disc weight, they may require additional support or anchoring.

Types of Dual Plate Check Valve:

• Wafer Dual Plate Check Valve
• Lug Type Dual Plate Check Valve

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