... Material: cast iron casing, rotary vane Electric Transfer Pump, fuel transfer pump, diesel transfer pump with small size, light weight, transfer diesel oil, ... not for gasoline.2. Cast iron casing, rotary vane pump, steel rotor.3. Bypass valve built in.4. Built in filter, ... oil pumps, gear pumps, diaphragm pumps, screw pumps, fuel transfer pumps, fuel flow meter, oval gear flow meter, turbine flow ...