Check valve with plastic closing element, 3", FF
The non-return valve with plastic closing elements, 3", nut–nut, is a reliable component for domestic and light commercial water installations. It protects the system against backflow of water or water-glycol mixtures and supports stable operation of heating or cooling circuits.
Designed for a nominal pressure of 10 bar and a maximum operating temperature of 70°C, the valve performs well in typical closed-loop systems. The DN 80 connection with G 3 thread suits larger pipelines, while the non-full-bore design helps control flow in installations where backflow protection is a priority.
The body made of CW617N brass in 4MS alloy stands out for its resistance to dezincification and corrosion, extending service life in demanding conditions. The ABS closing element works smoothly with water and up to 50% glycol, so the valve fits both standard water lines and mixed-media heating systems. The nut–nut connection simplifies assembly and disassembly during maintenance.
This non-return valve is a solid choice for professional installers looking for a durable DN 80 check valve for water and glycol systems, combining robust materials with convenient installation and dependable backflow protection.
- Nominal pressure [bar]:
- 10
- Maximum operating temperature [°C]:
- 70
- Shut-off element material:
- ABS
- NICKEL FREE:
- yes
- Connection type:
- screw out-screw out
- Air vent:
- no
- Full bore:
- no
- Rosette included:
- no
- Built-in filter:
- no
- Media:
-
- 50% glycol
- water
- Body material/assembly material:
- brass CW617N - 4MS