General Specifications Compact single diaphragm positive displacement pump. Low power consumption Self-priming Can be run dry Can rotate clockwise or anticlockwise Single grease point for lubrication Dry sump to simplify maintenance No special tools are needed for maintenance Polyurethane diaphragms and seals Cast iron crankcase and covers 3/4″ suction port, 3/4″ pressure port Recommended to use HARDI suction and pressure dampers 503/4 (Ref. No. 821618) Cylindrical shaft 0.98″ (25mm) diameter for combustion and electric engine use Supplied with narrow base plate Normal operating revolutions: 800 RPM Maximum pressure: 220 PSI (15 bar) Maximum vacuum: 12 PSI (0.82 bar) Weight: 20 lbs (9.0 kg) HARDI 503 Pump Parts List
