Product Introduction

A dedicated one-way gate designed to prevent backflow. The gate leaf is connected to the frame via hinges and opens automatically under the forward pressure of the medium, while closing automatically against reverse head pressure and its own weight—no manual operation or external power is requir...

A dedicated one-way gate designed to prevent backflow. The gate leaf is connected to the frame via hinges and opens automatically under the forward pressure of the medium, while closing automatically against reverse head pressure and its own weight—no manual operation or external power is required. It features a simple structure and convenient installation and maintenance, and is specifically used at the outlets of drainage pipes, pump station outlets, and the ends of river culverts to prevent backflow of river water or seawater.

This product is a non-standard customized item, with dimensions and pressure ratings based on actual customization requirements.

Key Features
Automatic Operation: Relies on the differential head between internal and external water levels for automatic opening and closing, requiring no external power.
Robust Structure: Primarily circular or square plate structures, fitted with rubber seals for optimal water stoppage performance.
One-Way Flow & Auto-Close: Permits forward drainage while automatically closing in reverse to prevent backflow.
Durable Materials: Available in Cast Iron, FRP (Fiberglass Reinforced Plastic), or Stainless Steel, offering corrosion and erosion resistance.
Flexible & Low Resistance: Features flexible opening/closing action with minimal flow resistance.
Typical Applications
Municipal Infrastructure: Outfalls of municipal pipe networks, stormwater pumping stations, and sewage pumping stations.
Water Conservancy: Terminals of rivers, culverts, and drainage channels for backflow prevention.
Flood Control: Low-lying areas and coastal drainage outlets.
Advantages
Fully Automatic: Unattended operation significantly reduces operation and maintenance costs.
Simple & Reliable: Simple structure results in a low failure rate, facilitating easy installation and maintenance.
Strong Protection: Effectively blocks river water and tidal backflow, offering high protective performance.
Unobstructed Flow: Ensures smooth water conveyance without hindering normal drainage, guaranteeing a long service life.
High Adaptability: Suitable for outdoor and submerged conditions, demonstrating strong environmental adaptability.