How to choose your fuel-powered motor pump at Pompes Japy?

Tips for choosing a Pompes Japy fuel-powered motor pump

Our range of Pompes Japy fuel-powered motor pumps is not reserved for professional use only. In fact, we can also put you in touch with our experts if you wish to buy some reliable equipment and use it in a private capacity. What are the criteria for choosing a model suited to your needs? What are the possible types of applications? We will guide you in making the best possible choice.

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What is a fuel-powered motor pump?

A motor pump, also called a motor pump unit, is mainly used by fire fighters and military corps in civil engineering and military engineering. Its primary use is to fight fire.

It is in rural areas where it is difficult to supply water that the firefighter’s motor pump is most often used. In fact, in case of an accident, a fire pump enables the discharging enormous quantities of water in record time. It is then transported by the water tender, also called the booster tank truck.

The second most common use involves water pumping operations. For instance, during floods after a natural disaster or in the event of water damage draining a cellar, draining pits, etc. may be necessary.

What are the different types of motor pumps?

There are several categories of motor pumps, which are differentiated by the characteristics of the engine power of the motor, the type of motor used, its ease of transport (portable motor pump) as well as the pumping or transfer power of the equipment.

The fuel-powered motor pump: a petrol motor or a diesel motor

The fuel-powered motor pump is the most widespread model in the market. Its motor is either a diesel motor or a petrol motor. There are models with 2-stroke and 4-stroke motors that are used in several domains, as described below.

The electric motor pump: silent and smaller

The electric motor pump is also very commonly used due to its more silent running and its often smaller sizes. Mostly portable in nature, these motor pumps are equipped with a handle for ease of use. They are mostly used for transferring foam compounds or any liquid with high viscosity.

Sectors of application of motor pump units

Given below are a few examples of sectors where fuel-powered motor pumps can be used:

Civil engineering and military engineering: fire fighters essentially use them for pumping surface water, boosting the pressure from fire hydrants as well as for transporting water over large distances. Motor pumps for forest fires, for instance, enables response to mobility issues due to their smaller sizes and lightweight nature, thereby greatly facilitating the work of the fire fighters.

Motor pumps dedicated to fires are also perfect for use in city fires, in industries with difficult access or even in remote houses.

Domestic use: fuel-powered self-priming motor pumps are often used for garden irrigation. They are also suitable for pumping from wells with low or high flow rates, depending on the volume of water to be pumped. For instance, the Pompes Japy fuel-powered motor pumps have a maximum TDH of 23 metres or 30 metres.

Which liquids or fluids can be pumped using a motor pump?

Motor pumps can be used for pumping several liquids or fluids, and especially water. Keep in mind that it is important to select the maximum grain size diameter (granular passage). This can be summarised as knowing the diameter of particles that might be pumped.

For instance, the Pompes Japy range of fuel-powered self-priming motor pumps are equipped with robust Honda motors. Honda fuel-powered motor pumps are recommended for transferring clear water, turbid water or very turbid water.

Discharge of clear water or slightly turbid water

Motor pumps for clear water allow a maximum grain size of less than 6 mm. They are mostly used for clear water in swimming pools, water drawn from fire hydrants by fire fighters. The use of a motor pump for a well or for irrigation and sprinklers also falls under the category of equipment used for discharging clear water or slightly turbid water.

The GMP6/GMP6B portable clear water motor pump, from the range of portable motor pumps, is equipped with a 4-stroke Honda motor available with a power of 4 CV or 1.8 CV, accepting a maximum grain size of less than 6 mm. These motor pumps are also equipped with a handle for ease of use.

Discharge of turbid water

Motor pumps for turbid water was designed to transfer a high volume of water in the event of a flood, the pumping of a pond, a waterhole, etc. In this case, one must select a turbid water motor pump with a maximum grain size of 20 mm, as is the case for the GMP20 fuel-powered water pump.

A model of a 5.5 CV fuel-powered self-priming centrifugal pump with a Honda 4-stroke petrol engine, having a maximum suction lift of 7 metres and a maximum flow rate of 67 m3/h with a maximum operating period of 2 hours, 20 minutes.

Discharge of very turbid water

Motor pumps for very turbid water can be used with maximum grain size of more than 20 mm, thus facilitating the pumping of sludge or very turbid water during construction work.

In this case, we wish to point you towards the GMP35 high-speed (very turbid water) motor pump, which has a maximum grain size of 35 mm and a 8 CV motor with a maximum operating period of 3 hours, 15 minutes.

Key features of fuel-powered motor pumps

There are several criteria to be considered when choosing the equipment that is best suited to your uses. In addition to providing aid via our experts, we also provide you with all useful characteristics in our technical data sheets, which can be accessed by clicking here.

For each of these pumps, you will find the key information such as the weight, flow rate, type of pump (e.g. self-priming centrifugal), pump body (aluminium, etc.), type of engine power or fuel (petrol) and the recommended sector of use.

Obviously, you will find information on the total dynamic head (TDH) and the performance curve corresponding to the correlation between the flow rate, the pressure and the TDH.

Example of a Pompes Japy GMP20 motor pump performance curve.

It is important to take the TDH (Total Dynamic Head) into account when choosing a fuel-powered water pump. It corresponds to the total pressure that your motor pump will deliver when it is used, and corresponds to the following equation: TDH = (suction lift + discharge head + average charge loss + effective pressure).

What accessories are available?

We offer several accessories and spare parts for equipping motor pumps. You can find suction hoses, fittings and strainers that will also be recommended to you when you file a request for free advice and assistance from our engineers.