EPDM Rubber Flap Flange Check Valve Ductile Iron

The rubber valve disc is in surface contact with the valve seat for sealing, and can achieve a tight fit with the help of reverse pressure of the medium. Its sealing performance is better than that of traditional metal disc check valves, which can effectively prevent medium leakage under low pressure conditions, especially suitable for pipeline systems with non particle or small particle media such as clean water and sewage.

1. Simple structure, low failure rate

Without hinges, springs, and other vulnerable moving parts, it fundamentally avoids problems such as component corrosion, jamming, fatigue fracture, etc; The rubber valve disc is wear-resistant, anti-aging, and has a long service life, greatly reducing the maintenance frequency and cost of the valve.

2. Low flow resistance, energy-saving and efficient

The straight through flow channel is matched with a rubber valve disc that adheres to the wall in a fully open state. The medium passes through almost unobstructed, with low pressure loss, which can reduce the energy consumption of upstream power equipment such as water pumps and improve pipeline transportation efficiency.

3. Shock absorption and noise reduction, smooth operation

Rubber valve disc has good elastic buffering effect, no rigid impact when closed, and can significantly reduce the noise and vibration during valve opening and closing; At the same time, it can weaken the damage of water hammer impact to pipelines and valves, and protect the stable operation of the system.

Standard export wooden case packaging

Widely used in urban water supply and drainage, sewage treatment, fire protection systems, HVAC, water treatment plants, farmland irrigation and other fields, especially suitable for low-pressure and high flow pipeline systems with medium containing a small amount of impurities. It is a commonly used valve type for preventing medium backflow in civil buildings and municipal engineering.