... 4.23kw. The Application:dealing water, Wastewater Treatment, aeration tank, air transporting, mine, vacuum packaging, aquaculture and ... discharge pressure gauge, flexible connections, lubricant and etc.Roots Blower is the leading products of our company, adopt the ... to 4.23kw. The Application:dealing water, Wastewater Treatment, aeration tank, air transporting, mine, vacuum packaging, aquaculture and ...