1-1/2" Silent Check Valve for Sump Pump

1-1/2" flanged silent check valve manufacturer direct sale. WCB quiet check valve is used for regulating and controlling the flow of fluid through a pipeline while preventing backflow. Carbon steel non-return valve, DN40, pressure PN 16, can transfer water, steam, oil, petroleum, etc.

Features

• 1-1/2 inch sump pump silent check valve has smooth liquid flow and small local head loss.
• It provides a guide device, flexible closing, linear sealing, good check effect, and can effectively reduce closing noise.
• The flanged quiet check valve is small in size, light in weight, and easy to install and maintain.

Specifications

• Model: ATO-H42H-16C
• Type: Check Valve
• Body: WCB
• Size: 1-1/2 inch (DN40)
• Pressure: PN16
• Connection Method: Flange
• Temperature: -20~150℃
• Suitable Medium: Water, Steam, Oil, Petroleum, etc.

Dimension (Unit: mm)

Tips: What is silent check valve?

The silent check valve, also known as a non-slam check valve, is a type of valve designed to prevent reverse flow in a piping system without creating the water hammer effect—an abrupt pressure surge caused when a fluid in motion is suddenly forced to stop or change direction. This valve operates quietly and efficiently by using a spring-loaded disc that moves within the valve body.

When fluid flows in the correct direction, the pressure pushes the disc open, allowing the fluid to pass through. When the flow stops or reverses, the spring quickly pushes the disc back into the closed position, preventing backflow. The quick closing action, combined with the disc’s short travel distance, minimizes the potential for water hammer, hence the term "silent."

Silent check valves are commonly used in applications where backflow could cause damage to equipment or where quiet operation is crucial, such as in HVAC systems, water distribution systems, and various industrial processes. They are often made from materials like stainless steel or cast iron, ensuring durability and resistance to corrosion.