Apollo mechanical industries presents fuel injection internal gear pumps, which are used for pumping in oil burners, boilers, hydraulic systems, fuel injection with pressuring and transfer. These pumps handle fuels like ldo, fo diesel, hsd and lshs. It is used in non-corrosive and non-abrasive liquids. It has mechanical seals to ensure zero leakage at maximum pressure. These pumps are used in various types of industrial applications like booster pump for diesel locomotive, oil transfer and heating system, etc. These pumps have built-in pressure relief valve capacity by-pass.