Air Line

The Cartridge-Type Check Valve (made of poliacetal) is usually open, it allows the exit of air and shuts when water arrives. It’s usually used for hydro-massage accessories. 

External Diameter 15

External Diameter 20

VLA 01 A DN15

The Cartridge-Type Check Valve in poliacetal is usually open, it allows the exit of air and shuts when water arrives.
Diam. Features
15 Cylindrical model – Springfree

VLA 01 A DN 20

Spring-free direct passage.


Diam. Features
15 Cylindrical model – Springfree