None is easily damaged with an ON-OFF regulation and the adjusting range of tidal volume is 0 to 100%.
It has small pressure loss and long operating life.At present,it is the most effective and
reliable adjusting method of intake.
It adopts triphase high performance motor made by a famous brand with IP54 PROTECTION LEVEL,
F insulation level and"SKF"heavy-duty bearing.The transmission efficiency up to 95%,
whit good thermostability and longlifetime.