Product Name: Big Size Roots Blower (ZR8-900T) Model NO.: ZR8-900T Trademark: Zhanggu Transport Package: Export Wooden Packing Origin: China HS Code: 8414599010 Product Description Combined with our rich manufacturing experience and the technology of RR Roots blowers and L roots blowers, ZR blowers are developed by using special impeller profile to realize high efficiency and energy saving.Features:Involute profile is applied to the impellers to get high efficiency.Key parts are machined by machining center, gears are made in alloy steel and reach class 5 accuracy.New structure is applied to oil tank to get better oil lubricating. Air cooling for the pressure rise of 49 Kpa.Dual splash lubricationBlower casings and head plates are mid-split structure to make easy maintenance.DutyFlow: 317.9~1258m3/minPressure rise: 9.8~98kPa;Applications:For large flow applications in Power, petroleum, chemical, metallurgy, cement, and air-separating industries