- Diesel engines used in Fire pump , should be reliable, high quality and for Fire fighting system designed

- If the diesel engine is selected, the ambient temperature and altitude should be taken into consideration.

- Pump and diesel engine must be coupled by flexible couplings.

- Diesel engines must be equipped with a governor and have the ability to adjust the diesel speed between 10% shot f and the maximum working load of the pump.

- The diesel engine must have an Over speed shut-down device that shuts down the diesel when the speed increases by 20%.

- The engine must be equipped with a Tachometer.

- The engine must have an oil pressure gauge.

- The engine must have a temperature indicator.

- All engine control indicators must be properly connected to the control panel.

- Every diesel engine must be equipped with two reserve batteries.

- Each battery should have twice the capacity to maintain the crankshaft speed recommended by the manufacturer.

- Each battery must have manual control contactors to enter the circuit.