IBO combustion motor pumps – efficient combustion pump independent of electricity

As a manufacturer of water pumps, we at Dambat have been observing for years that where mobility and quick operation without access to the electrical network are important, installers and technical teams use combustion water pumps. The mobility of motor pumps and the lack of dependence on a socket make this type of equipment increasingly popular among installation companies. In this material we explain how it works combustion pumpwhat is the difference between standard dewatering pumps and high-pressure models, and we advise you how to choose one motor pump model for a specific task - from drying the excavation, through irrigating fields, to providing water for firefighting. We are writing this as employees of the Dambat marketing department, using the real technical parameters of our IBO motor pumps.

How does a combustion engine pump work – principle of operation

The principle of operation of a combustion engine pump is simple and has been proven for decades: the gasoline engine drives the rotor of a centrifugal pump, which sucks water through the suction hose and pumps it further through the discharge port. The entire structure - engine, fuel tank and pump - is mounted on a common metal frame, thanks to which motor pumps IBO can be freely moved and placed exactly where work is in progress.

Pumps of this type operate in a self-priming system. This means that before each start-up, the pump must be filled with water through the priming plug - only then is the impeller able to create the negative pressure needed to suck in water from the intake located below the pump level. At the end of the suction hose, a suction basket with a non-return valve is installed, which prevents water from pouring out of the system when the engine is stopped and protects the pump against sucking in larger solid contaminants.

The key advantage of this solution is: independence from electricity. All you need is fuel in the tank for the motor pump to suck in water and start working - without a generator, extension cords or access to a socket. This is why diesel motor pumps are used where there is simply no electricity or providing it would be too time-consuming: on construction sites, in the field, in flood areas or during rescue operations.

It is worth adding that most models are started mechanically - manual starting with a starting rope is standard, just like in typical lawn mowers or combustion generators, so operation does not require specialized training.

Standard combustion motor pump and high-pressure motor pumps

Our offer includes two product lines that meet the different needs of installers and professional users.

Standard combustion motor pump The BZP series is a drainage structure optimized for high flow. Models BZP-10, BZP-20 and BZP-30 they differ primarily in water pumping efficiency and the diameter of the connections. The solid BZP-20 combustion pump achieves a capacity of 600 l/min with a lifting height of up to 30 m, while the larger BZP-30 model pumps up to 1000 l/min while maintaining the same lifting height. Both pumps have a suction depth of up to 7 m and work with water at a temperature of up to 35°C, also contaminated with solids of a size consistent with the parameters of a given model.

The second line is high-pressure motor pumps from the H-BZP series. As the name suggests, their design has been optimized for pressure and head, at the expense of some flow compared to the dewatering series. The H-BZP high-pressure motor pump can pump water to a height of 28 m with a capacity of 133 l/min - it is the pressure, and not the amount of pumped water itself, that determines its effectiveness. The use of high-pressure pumps covers situations in which water must cover a long vertical distance: supplying water to extinguish a fire, irrigating areas located higher than the intake, or pumping water from deep excavations to a higher ground level. Models H-BZP-20 i H-BZP-30 you will find in our offer with full technical documentation.

The choice between these two product families actually comes down to one question: whether the priority is high flow with a moderate head (BZP series), or rather high pump pressure and vertical reach (H-BZP series). A wide selection of motor pumps in both lines allows you to adapt the device to actual operating conditions, instead of buying a "universal" pump that, in practice, will not work optimally in any application.

Application of combustion motor pumps in practice

The efficiency of the combustion pump makes this equipment used in many industries - and it is the versatility combined with the mobility of motor pumps that is their greatest advantage.

• Application in construction – construction works very often require quick drying of flooded excavations, foundations or construction sites. The solid construction of the motor pump on a metal frame allows it to be placed directly next to the excavation and start dewatering immediately, without waiting for the power supply to be connected.
• Application in agriculture – irrigation of fields and gardens, pumping water from reservoirs or ponds, as well as drying flooded areas after heavy rainfall are everyday tasks in which a combustion motorized pump works particularly well on farms far from the electricity grid or in areas where electricity is simply unavailable.
• Application in firefighting – mobile design and the ability to start immediately make motor pumps, especially high-pressure models, used by fire and rescue services to deliver water over long distances and heights.
• Cleanup and grounds maintenance crews – where you need to quickly pump water contaminated with solids, e.g. after flooding, a motor pump with high flow and resistance to mechanical contamination is useful.

The common denominator of all these applications is the use of clean or slightly polluted water - none of the BZP or H-BZP models is intended for pumping sewage or chemically aggressive liquids. In the case of clean, high-pressure water, e.g. for irrigation of orchards on slopes or hilly areas, the H-BZP series, as a high-pressure pump for pumping water to heights, will work best. The task of a well-selected pump when pumping clean water is to maintain a stable stream regardless of the distance between the intake and the destination point.

Why is it worth choosing professional IBO combustion motor pumps?

The choice of brand is important because it determines how long the equipment will work reliably in difficult field conditions. We have designed IBO professional combustion motor pumps for installers and companies that cannot afford equipment downtime at a crucial moment.

The four-stroke engine powered by Pb95 gasoline (in the smallest model - a two-stroke engine) works with SAE 10W-30 oil, which translates into stable operation and long-term operation with regular maintenance. High engine power, up to 6.5 HP in the BZP-20 and BZP-30 models, ensures high water pumping efficiency even at full load.

The reinforced frame and metal supporting frame are not only a matter of aesthetics - it is primarily high quality workmanship that protects the engine and pump when transported in a pickup truck, on a trailer or when carried manually between work points. The cast iron impeller used in the pump structure increases the resistance to abrasion when working with water containing small solid impurities, which directly extends the life of the entire pumping unit.

Each IBO motor pump is covered by a 24-month manufacturer's warranty - the 24-month warranty is valid from the date of purchase, and warranty and post-warranty service is provided directly by Dambat. Each device comes with a warranty card, which you should keep with your proof of purchase in case of a service request.

How to choose a motor pump model – parameters that matter

When selecting a motor pump model, it is worth paying attention to several technical parameters that have a real impact on whether the equipment will work in specific operating conditions:

• Water pumping efficiency – expressed in l/min, determines how quickly the motor pump will empty the trench, tank or flooded surface. The larger the cross-section of the connections, the higher the efficiency.
• Lifting height – a key parameter when water must be delivered to a higher level than the source, e.g. into a reservoir or up a slope. It is the lifting height that distinguishes the H-BZP series from standard BZP models.
• Suction depth – informs from what depth the pump is able to effectively suck water. In IBO models it is up to 7 m, which covers most typical off-road applications.
• Engine power – translates directly into the pump's efficiency and the ability to operate continuously under load, e.g. with longer sections of the delivery hose.
• Fuel tank capacity – affects how long the motor pump can operate without a break for refueling – important parameters when dewatering lasts many hours.
• Pump pressure – the higher the maximum pump pressure, the greater the horizontal and vertical range of the water stream, which is especially important in fire-fighting applications.

It is also worth remembering that the selection of the appropriate cross-section of the hose and the length of the suction installation affects the actual performance of the pump almost as much as the parameters of the engine itself - too long or too narrow a suction hose generates losses that are difficult to distinguish from a fault in the pump itself.

A set of accessories for motor pumps - a ready-made drainage solution

For installers who want to have a complete solution right out of the box, we have prepared kits with accessories. The set of accessories for BZP-20 and BZP-30 motor pumps includes a suction hose with a stiff braid, a discharge hose, a suction strainer with a non-return valve and a set of clamps and gaskets. Thanks to this, after refilling the fuel and oil, the motor pump is ready for operation without the need to complete the accessories yourself - which can be time-consuming if you do not have the appropriate connectors and hoses in compatible diameters at hand.

Ready-made sets with hoses and accessories can be found at the following links: BZP-20 set with hoses and accessories and BZP-30 set with hoses and accessories. This solution is especially recommended for companies that are buying a motor pump for the first time and want to avoid mistakes when selecting accessories.

Operation and maintenance – how to extend the life of the motor pump

The long-term operation of a combustion motor pump depends largely on a few simple habits that are worth remembering when working with the equipment on a daily basis:

• Check the engine oil level before each start - operating with too low an oil level is the most common cause of premature engine wear.
• Always fill the pump with water before starting - the self-priming design will not work properly "dry", and long-term operation without water may damage the seals and impeller.
• Make sure that the suction basket is fully immersed and the suction hose is tight along its entire length - a leak in this place makes it difficult or impossible to suck in water.
• After finishing work with contaminated water, it is worth flushing the system with clean water, which limits the deposition of contaminants inside the pump.
• A motor pump model with manual start requires periodic inspection of the rope and starter mechanism, especially before a season of intensive use.

Technical documentation, including operating instructions in the PL-EN-DE version, can be found in downloadable manual section on our website. If you have any questions about model selection or a service request, please contact us contact our team – we will be happy to help you choose a motor pump suitable for a specific application.

You can view the full range of combustion pumps, along with all available models and sets, at category of combustion pumps. If you are looking for a pump for agricultural applications powered by the tractor's PTO shaft, check out our offer tractor pumps. Our guide will be helpful in selecting the diameter of hoses and pipes pipe diameter converter, and the full catalog of the IBO brand can be found at IBO product collection.

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