The Georg Fischer Check Valve Type 561 is a high-performance, non-return valve engineered to keep piping systems running smoothly and reliably. Built with a durable PVC-U body and EPDM seals, it automatically prevents reverse flow protecting critical equipment like pumps and filters from costly damage caused by backflow. Available with solvent cement sockets (ASTM) and NPT threaded ends, it installs cleanly into a wide range of piping configurations, minimising downtime and simplifying maintenance. Designed for demanding environments, the Type 561 is trusted across water treatment and distribution facilities, chemical processing plants, industrial cooling systems, marine and shipbuilding applications, swimming pools, food and beverage operations, and microelectronics manufacturing.

Summary: 

• Highly reliable, non return valve used to automatically prevent reverse flow in piping systems
• Protects equipment like pump and filters
• EPDM seals
• PVC -U body
• Solvent cement sockets (ASTM)
• NPT Threaded Ends 

Applications: 
Commonly used in;

• Water treatment & distribution
• Chemical processing
• Industrial cooling systems
• Swimming pools & aquatics
• Marine & shipbuilds
• Food & beverage and,
• Microelectronics & manufacturing