The d20 check valve with a Teflon spring is designed for smaller dosing and chemical circuits of pool installations, where the backflow of aggressive media must be prevented. The Teflon spring withstands direct contact with concentrated chemicals such as hypochlorite or acid. The PN10 operating pressure meets the requirements for all standard pool technologies.
The valve is connected by gluing to pipework with a diameter of d20 and is made entirely of PVC-U for maximum chemical resistance. Thanks to its compact dimensions, it is easy to integrate into any technology manifold. Reliable backflow protection ensures the correct function of the dosing system throughout its entire operating life.
