The R-20 series by Ooval ARI is a line of composite material, diaphragm operated hydraulic control valves with a working pressure up to 10 bar [145 psi]The valves are suitable for installation on water transmission,landscape and irrigation systems.The R-20 series has an innovative elliptic shaped diaphragm that integrates well with a wide variety of regulating control pilots, solenoids and control accessories.Unique in the R-20 Series available in sizes up to 8"Separate double chamber for 6"-8" valves
for more eliptix r-20 featuresr-20 eliptix series brochure