Check valve with plastic closing element, 4", FF
The non-return valve with plastic closing elements, 4", nut-nut connection is designed to protect installations against backflow in domestic and light commercial systems. It controls the direction of water or water-glycol mixture, supporting stable operation of heating and water supply lines.
The valve is adapted to a nominal pressure of 10 bar and a maximum working temperature of 70°C, so it performs well in typical closed-circuit heating systems using water or mixtures with up to 50% glycol. The DN 100 connection and G 4 thread suit larger pipelines where a reliable check valve is required.
The body made of CW617N brass in 4MS alloy offers high resistance to corrosion, while the ABS closing element reduces weight and supports quiet operation. The nut-to-nut design simplifies installation and disassembly during service, even in tighter spaces defined by dimensions of 143.8 mm and 108 mm.
The nickel-free construction responds to current safety expectations in modern plumbing valves, and the robust design makes this check valve a solid choice for professional installers seeking durable, low-maintenance system components.
- 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