... perform reliably,brass gear,PPO parts,large output torque,long product life for 100,000 times. 2. ... conditions. 5.Good substitution for solenoid or pneumatic valve. 6. High protection class,can be worked in moist conditions ... Stem: brass or stainless steel mini motorized valve, actuated valve, motor operated valve, motor actuated valve, automatic valve, control valve, shut off valve, actuator valve, ...