Grooved Check Valves – VR-300-G Description AG Fire Sprinkler’s Grooved resilient swing check valve Model VR-300-GSizes:– 2″ DN50– 2 1/2″ DN65– 3″ DN80– 4″ DN100– 5″ DN125– 6″ DN150– 8″ DN200– 10″ DN250– 12″ DN300Working pressure: 300 psi (21 bar) Request Info Other Products From AG Fire Sprinkler OS&Y Gate Valve – VCOS&Y300 / VCOS&Y232 OS&Y Gate Valves Read More » Threaded Adjustment Flat Cover plate – 35300094 Cover plate For Concealed Sprinklers Read More » Upright Sprinkler Standard Coverage Standard Coverage Sprinklers Read More » Sidewall Sprinkler Extended Coverage Extended Coverage Sprinklers Read More »