PN16 double-disc butterfly swing type wafer check valve designed for drainage applications. These automatic shut-off valves prevent backflow and drainage in pipe systems, commonly installed on pump discharge sides to protect equipment from damage.

• Compact design with small size and light weight for easy installation
• Dual torsion spring mechanism ensures quick, automatic plate closure
• Prevents water-hammer effect and backflow with rapid closing action
• Short length provides structural rigidity and simplified mounting
• Suitable for both horizontal and vertical pipeline installations
• Zero leakage performance verified through pressure water testing
• High reliability and interference resistance for demanding applications
• Cost-effective solution with minimal head loss characteristics

Ideal for drainage systems, wastewater handling, and applications involving liquids with solids. Protects pumps and equipment from backflow damage when pumps stop operating.

Professional plywood case packaging ensures protection during transit. Multiple shipping options available including sea, air, and rail transport. Delivery timeframe: 7-40 days based on order quantity after deposit confirmation.