Product Description Product Description YJ-JZ series part-turn electric type worm gearbox suitable for Damper, Ball Valves, Butterfly Valves, Plug Valves,etc. Mounting base can customized according to request.   Output torque from 3Nm, flexible product design, easy to install. The ratio can be customized according to the open time, input torque and output speed of the … Continue reading China Custom Yj-Jz Series Valve Worm Gearbox with Mounting Base and Lever Arm manufacturer