... -1.5NM, -2NM Products Chracteristic 1, smart shape, perform reliably, brass gear, PPO parts, large output torque, long product life. 2, Electrical ... limit and machinery limit design, accurate position, avoid gear and switch. 3, Multi-assembling, easy to install. 4, Float ... heaters, washing machins, water heaters, industrial eletric warm valve1/2" brass full port for heating system