Swing check valves are common in sectors that involve liquids and gasses. For example, the valves are present in firefighting equipment, toilet flushing mechanisms, flood containment in sewage systems, and closed bushings. In addition, the valves have features that make maintenance and installation easy. Here’s all you need to know.
What is a Swing Check Valve?
The valve has a disc fixed that swings on the shaft or hinge. The disc swings off the seat to authorize forward flow, and when the flow stops. After the disc swings back onto the seat to prevent reverse backflow, the disc’s weight and return flow affect the shut-off feature of the valve.
How to maintain a Swing Check Valve?
The valve doesn’t need much maintenance. As per swing check valve manufacturers, it is considered to last longer. However, there can be leak developments if foreign particles are stuck between the disc and seat. So what’s the process of valve maintenance?
• Always keep it clean by wiping dust and dirt regularly.
• Do regular inspections of the valve
• Look out for leakages
• Change the valve if there’s heavy leakage
• Check for signs of corrosion, rust, and wear
• Examine the fluid flowing pressure and temperature through the valve.
• If there’s a valve replacement, clean the valve you remove through overhauling and wash all the parts with hydraulic liquid.
• Always store the valves in a well-ventilated room to contain moisture, rain, and rust.
• The opening and closing parts must be in the closing device during transportation or storage. you should do the following
• Fixing of the valve disc should be in an open position.
• The inner ports on both ends of the diameter are obstructed with foam plates.
• The plates should be fixed tightly with stuffed caps to contain dust and rust.
• Check it regularly if you’ve placed it for a long time. Also, check the dust and dirt protection status on the two channels.
The swing check valve prevents reverse flow in the pipe. When a fluid is going through, the valve opens, but it closes in case of a reversal. For longevity, ensure you follow the maintenance instructions.
