M20 backpressure turbine is single stage backpressure.Its rotor uses a velocity-compounded stage impeller..Nozzle pitch diameter is 624mm.Its speed regulating system can use KOEI electronic speed governing,and also can use woodward TG17 or TG13 mechanical governor,non-forced lubrication.Its speed of main shaft is 1500~4500r/min and it can achieve gear shaft output to installation of gearbox according to customer requirements.The main features of models is the of low-temperature,low-pressure,low-differential pressure steam ad steam source dragging turbo-dynamo doing work to realize the energy conservation. /