"Pressure regulator MS9-LR-G-D5-AG-BAR-AS 4 bar maximum output pressure, with pressure gauge, lockable regulator head, direction of flow: from left to right. Series=MS, Actuator lock=with accessories, lockable, Assembly position=Any, Design structure=Pilot actuated diaphragm regulator, Controller function=(* Output pressure constant, * with initial pressure compensation, * with secondary exhaust, * with return flow)