... . 4.compatitive price 1.ZYSR series roots blower applicationsZYSR series roots blower widely used in electricity,petroleum,steel industry ... ,pneumatic conveying,etc2.Three lobes roots blower major specifications Bore:50-200mm Air Capacity:0.8-122.6m³/minPressure ... air filter),Safety Valve,Pressure Gauge,Lubricating Oil,Anchor Bolt,flexible joint,non return valve.4.Contact three lobes roots type blower ...