Products

Liangfa supplies Slow Close Check Valve designed to prevent backflow, reduce water hammer, and protect pumps and pipelines during shutdown. Available in DN40–DN1200 with wafer connections, multiple pressure ratings, and optional body and sealing materials, our valves are suitable for municipal water supply, fire protection, HVAC circulation, and industrial water systems.

Our Silent Check Valve is designed to prevent reverse flow in water supply and circulation systems while helping reduce water hammer and operating noise when pumps stop. At Liangfa, we provide check valve solutions for municipal water supply, high-rise buildings, HVAC systems, fire protection, and industrial water circulation.

At Liangfa, we provide reliable ball check valve solutions for water supply networks, sewage treatment plants, pump stations, and industrial water circulation systems. Featuring a rolling rubber-coated ball, our valves help prevent backflow, reduce closing noise, and handle suitable fluids containing sediment or fibers. We offer multiple body materials, sealing options, and pressure ratings to meet different pipeline requirements.

Our Butterfly Type Check Valve is a compact, dual-disc wafer valve designed to prevent reverse flow and protect pumps, pipelines, and downstream equipment. Available with cast iron, ductile iron, carbon steel, and stainless steel body options, it supports different pressure classes and sealing materials for water supply, HVAC, fire protection, and industrial circulation systems.

Liangfa supplies wafer check valves designed to prevent reverse flow in water supply, fire protection, HVAC, and selected industrial pipeline systems. Available in compact wafer-style configurations with ductile iron, carbon steel, and stainless steel body options, our valves offer different disc structures and sealing materials to meet specific pressure, temperature, and media requirements.

Liangfa supplies swing check valves designed to help prevent reverse flow and protect pumps and pipeline equipment. Available with ductile iron, carbon steel, and stainless steel bodies, our valves support different sealing materials and pressure ratings for water supply, HVAC, pump stations, and selected industrial applications.