Norgren r74g excelon modular pressure regulator 0 3 to 10 bar g1 2 port norgren r74g 4gk rmn this compressed air pressure regulator from the b excelon b range has been designed to allow in line or modular installation with the minimum of fuss the regulator features a push to lock adjustment knob norgren r74g 4gk rmn excelon pressure regulator 0 3 to 10 bar g1 2 port