UNOX Dual Plate Check Valve

The UNOX Dual Plate Check Valve is a high-performance, compact non-return valve engineered to prevent reverse flow and protect pumps, compressors, and pipelines in a wide variety of industrial applications. With its space-saving wafer design and dual spring-loaded plates, this valve ensures quick, silent, and reliable closure, reducing the risk of water hammer and pressure surges.

Constructed from premium stainless steel or ductile iron (depending on model), the valve provides excellent resistance to corrosion, pressure, and high temperatures, making it ideal for water, steam, air, oil, and chemical services. The dual-plate mechanism opens smoothly under forward flow and closes instantly when flow stops or reverses. Torsion springs apply equal pressure on both plates, ensuring tight sealing and long service life.

The UNOX Dual Plate Check Valve complies with DIN, ANSI, and JIS flange standards, enabling easy installation into existing pipeline systems. Optional EPDM, NBR, or Viton seats ensure bubble-tight sealing and compatibility with a broad range of media. Low cracking pressure allows efficient operation even at low flow rates, while minimal pressure loss supports high energy efficiency.

Widely used in HVAC systems, water treatment plants, chemical processing, fire-fighting systems, and marine pipelines, the UNOX Dual Plate Check Valve combines robust construction, easy maintenance, and superior reliability, making it an ideal solution for modern industrial fluid control systems.