NRV valves are available in 2 sizes : -> Size 2 : - Flange size 1" SAE J518 3000 serie - Nominal volume 250 l/min [66.04 USgpm] - Maximum working pressure 300 bar [4350 psi] - Opening pressure 1 bar [14.5 bar] -> Size 3 : - Flange size 1"1/4 SAE J518 3000 serie - Nominal volume 350 l/min [92.46 USgpm] - Maximum working pressure 300 bar [4350 psi] - Opening pressure 1 bar [14.5 bar] The integration of valve and flange in the same body (where a port connection for circuit pressure reading has been made out) makes its application easy and cheap. These valves are designed to be set up on Berarma pumps Size 2 and Size 3, but thanks to their modularity can be installed on any other system.
