Q941 electric ball valve used in fields for cutting off and regulation, direction between valve and actuator, inside actuator there is servo system, need no servo amplifier, input 4-20mA signal and 220VAC power to control work. Simple connection, impact structure、small size、light weight、small resistance、stable action. According to users’ requirements, UNIC、PSQ、HQ、DHL electronic electric actuator and GTX、AL gas piston actuator