Products

Product Overview

The Rubber Flapper Check Valve mainly consists of the valve body, valve cover, and rubber flapper assembly. The rubber flapper is reinforced with steel plate and nylon fabric, while the outer layer adopts an integral hot-vulcanized rubber encapsulation structure for enhanced durability and sealing performance.

The valve seat adopts a ceramic coating process to improve wear resistance and extend service life. Featuring a full-flow passage design, the valve provides low head loss, minimizes debris accumulation, and allows convenient maintenance.

The valve is widely used in water supply, drainage, and pumping station systems requiring reliable backflow prevention and reduced water hammer impact.

Product Features

• Rubber flapper structure provides reliable automatic backflow prevention
• Reinforced steel plate and nylon fabric improve flap durability
• Integral vulcanized rubber encapsulation enhances sealing performance
• Ceramic-coated valve seat improves wear resistance and service life
• Full-flow passage design minimizes pressure loss and flow resistance
• Reduces debris accumulation and simplifies maintenance
• Fast closing action helps prevent reverse flow effectively
• Suitable for pump outlet installations and drainage systems
• Optional slow-closing hydraulic damping device available for large-diameter applications
• 85%–90% of valve travel closes rapidly, while 10%–15% closes slowly to reduce water hammer impact
• Adjustable slow-closing time range from 1–15 seconds
• Hydraulic damping device includes opening position indication function
• Suitable for municipal water supply, drainage, and industrial water systems