... purpose of the DSR roots blower:The DSR roots blower is mostly used in dealing water, air transporting, combustion furnace, washing, ... Annex:Including the inlet and outlet filter silencers, anchor bolts, base frame, safety valve, check valve, discharge pressure gauge, flexible ... pressure 1.033 KGF/cm2), conveyance medium for clean air. Unless the standard state shall conversion. new DSR50 air blower