Product Overview

This valve is mainly suitable for water supply and drainage systems. It can be installed at the outlet of water pumps to prevent backflow and pump damage caused by water hammer. Additionally, it can be mounted on the bypass pipe of the water inlet and outlet pipes of water storage tanks to prevent the backflow of tank water into the water supply system.

Main Features

• Mainly suitable for water supply and drainage systems.
• Installable at pump outlets to prevent backflow and pump damage from water hammer.
• Can be mounted on bypass pipes of reservoir inlet/outlet pipes to stop tank water backflow into the water supply system.

Working Principle

When the system operates normally, water flow pushes the valve open for circulation. When flow reverses (e.g., pump stops or pressure drops), the valve closes quickly to block backflow and avoid water hammer, protecting the pump and water supply system.

Structural Features

• Has a quick-closing structure to block backflow promptly.
• Compact design fits pump outlets and reservoir bypass pipes.
• Structure optimized to resist water hammer impact.
• Durable components for withstanding backflow pressure.

Maintenance

• Check hydraulic oil level annually
• Test closing time every 6 months
• Inspect disc and seat for wear during system shutdowns
• Lubricate adjustment mechanism yearly
• Verify proper operation after system pressure changes