A swing check valve is a type of valve used to prevent backflow in piping systems. It operates automatically, allowing fluid to flow in one direction while preventing it from flowing backward. Here are some key features and details about swing check valves:

 Design and Operation:
Structure: A swing check valve typically consists of a disc (or flap) that swings on a hinge or pivot. The valve body contains an inlet and an outlet, and the disc is positioned in such a way that it allows flow in one direction.
Operation: When fluid flows in the designated direction, the disc swings open, allowing the fluid to pass through. If the flow reverses, the disc swings back into a closed position, sealing off the flow and preventing backflow.

Advantages:
Simple Design: Swing check valves have a relatively simple design, which makes them easy to install and maintain.
Low Pressure Drop: They generally provide a lower pressure drop compared to other types of check valves, such as lift check valves.
Durability: Made from various materials (such as cast iron, bronze, stainless steel, and plastic), swing check valves can withstand a range of pressures and temperatures, suitable for different applications.

Applications:
Water Supply Systems: Commonly used in municipal water supply and wastewater systems to prevent backflow.
Pumping Stations: Installed in pipelines to protect pumps from reverse flow.
HVAC Systems: Used in heating and cooling systems to maintain proper flow direction.
Industrial Applications: Employed in various industrial processes where backflow prevention is critical.

Considerations:
Orientation: Swing check valves must be installed in the correct orientation (generally horizontal or vertical with the disc upward) to function properly.
Flow Velocity: They are most effective at higher flow velocities; at low velocities, the disc may not close properly.
Maintenance: Regular inspection and maintenance may be required to ensure that the valve operates effectively and does not become stuck.

Types of Swing Check Valves:
Horizontal Swing Check Valve: Installed in horizontal piping.
Vertical Swing Check Valve: Installed in vertical piping where the flow is upward.
Spring-Loaded Swing Check Valve: Incorporates a spring mechanism to assist in closing the valve more quickly against backflow.

TECHNICAL REQUIREMENT :    

● Design and Manufacture  Conform to MSS SP-71    

● Flange dimensions  Conform to ASME B16.1    

● Face to Face  dimensions Conform to ASME B16.10    

● Testing Conform to  MSS SP-71    

SPECIFICATION    

NOTE: Above 6 inch have eyebolt    

FLUIDO CHECK VALVE TYPES