Product Overview

It is mainly applied in water supply systems, water consumption systems and municipal pipeline systems, and can effectively prevent and isolate the backflow of unclean water to contaminate domestic drinking water.

Main Features

• Features low flow resistance design, minimizing pressure loss in the pipeline during normal operation.
• Effectively prevents medium backflow under various working conditions to avoid backflow pollution.
• Adopts a structure that balances anti-backflow performance and low-resistance operation, suitable for high-efficiency water supply scenarios.
• Has reliable sealing components to ensure tight closure when backflow occurs, maintaining the safety of the water system.
• Compact and durable design, facilitating installation, maintenance, and long-term stable use in different pipeline systems.

Working Principle

1. During normal forward flow, the medium passes through the device with minimal pressure loss, thanks to its low-resistance internal structure.

2. When reverse flow is about to occur (e.g., due to pipeline pressure fluctuations), the internal check mechanism is triggered promptly.

3. The check components quickly close to form a tight seal, blocking the reverse flow path of the medium.

4. Its low-resistance design and anti-backflow mechanism work together to ensure both efficient forward flow and reliable prevention of backflow pollution.

Structural Features

• Incorporates a low-resistance internal flow path design to reduce medium pressure loss during operation.
• Equipped with sensitive and reliable check components for rapid response to reverse flow tendencies.
• Adopts a integrated or optimized structural layout to balance low-resistance performance and anti-backflow functionality.
• Features high-sealing structural parts (e.g., seals, valve seats) to ensure tight closure when preventing backflow.
• Has a robust and compact overall structure, suitable for easy installation and maintenance in various pipeline systems.

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