Duplex Swing Check Valve

Duplex Swing Check Valve

Middleeast Valve manufactures high quality Duplex Swing Check Valve engineered to deliver excellent performance in avoiding back flow in piping system. Manufactured from duplex stainless steel- these valve are appropriate for use in highly corrosive and high pressure condition with consistent and long term performance in variety of industry.

 Definition

A Duplex Swing Check Valve is a check valve which prevents backflow in pipe systems by allowing fluid to move in one direction alone. It is equipped with a swing disc which opens for forward flow and automatically closes during reversal of flow. Made from duplex stainless steel this valve ensure high strength and corrosion resistance.

 Key Components

1. Valve Body: Constructed from duplex stainless steel offering strength and corrosion resistance.
2. Swing Disc: The disc that swings open or closed depending on flow direction.
3. Hinge Pin: Enables the disc to swing and regulates its motion.
4. Seat Ring: Provides a tight seal when the disc closes to avoid backflow.
5. Spring (optional): Helps close the disc rapidly when flow reverses.

 Working Mechanism

The Duplex Swing Check Valve works by letting fluid flow in one direction that swings the disc open. When the flow ceases or reverses, the disc swings closed under spring force or gravity, sealing against the seat ring to avert backflow. This self-acting operation guarantees constant safeguard against reverse flow without involving human intervention.

 Benefits

• Improved corrosion resistance, perfectly suited for hostile environments
• Solid construction in duplex stainless steel for maximum strength
• Prevents backflow, safeguarding pumps and other equipment
• Low maintenance and consistent performance
• Easy operation with automatic disc closure

 Industries Applied in:

1. Oil & Gas
2. Water & Wastewater Treatment
3. Petrochemical
4. Chemical Processing
5. Marine and Offshore