Features and working principle
The main working structure of all motor pumps is the same - it is a centrifugal pump and a diesel internal combustion engine. The principle of operation of the unit is that special blades are fixed on the shaft rotating from the engine, located at a certain angle - opposite to the movement of the shaft. Due to this arrangement of the blades, when rotating, they capture the liquid substance and feed it through the suction pipe into the transfer hose. The liquid is then transported along the transfer or ejection hose in the desired direction.
Due to the resulting internal high pressure, suction and further pumping of liquid substances is ensured. Despite their small size and simple design, diesel motor pumps have high power, long-term trouble-free operation and good performance. Therefore, they are very popular in various fields, the main thing is to choose the right device.
Review of popular models
There is a wide range of diesel motorized pumps on the market today from various manufacturers. The most popular and demanded models of units, tested and recommended by professionals.
- "Tanker 049". The manufacturing plant is located in Russia. The unit is designed for pumping various dark and light oil products, fuels and lubricants. The maximum performance of liquid distillation is up to 32 cubic meters per hour, the diameter of the inclusions is up to 5 mm. The unit is capable of pumping out from a depth of up to 25 meters. The permissible temperature of the pumped liquid is from -40 to +50 degrees.
- Yanmar YDP 20 TN is a Japanese motor pump for dirty water. Pumping capacity - 33 cubic meters of liquid per hour. The permissible size of foreign particles is up to 25 mm, it is capable of passing particularly hard elements: small stones, gravel. Starting is done with a recoil starter. The maximum water supply height is 30 meters.
- Caffini Libellula 1-4 is an Italian-made mud pump. Designed for pumping oil products, liquid fuel, fuels and lubricants, other viscous substances with a high content of acids and inclusions. Pumping capacity - 30 cubic meters per hour. Allows particles up to 60 mm in diameter to pass through. Lifting height - up to 15 meters. Engine start - manual.
- Vepr MP 120 DYa is a motorized fire pump of Russian production. Designed only for pumping clean water without large foreign inclusions. It has a high head of water column - up to 70 meters. Productivity - 7.2 cubic meters per hour. Starter type - manual. Installation weight - 55 kilograms. The size of the nozzles is 25 mm in diameter.
- "Kipor KDP20". Country of origin - China. It is used for pumping clean non-viscous liquids with foreign particles no more than 5 mm in diameter. The maximum pressure level is up to 25 meters. The pumping capacity is 36 cubic meters of liquid per hour. Four-stroke engine, recoil starter. The weight of the device is 40 kg.
- Varisco JD 6-250 is a powerful unit from an Italian manufacturer. It is used for pumping contaminated liquid with particles up to 75 mm in diameter. The maximum productivity is 360 cubic meters per hour. Four-stroke engine with automatic start.
- Robin-Subaru PTD 405 T - suitable for both clean and highly contaminated water. Allows particles up to 35 mm in diameter to pass through. Equipped with a centrifugal pump unit and a four-stroke engine. It has a high power and productivity - 120 cubic meters per hour.Head height - up to 25 meters, unit weight - 90 kg. Manufacturer - Japan.
- "DaiShin SWT-80YD" is a Japanese diesel motor pump for polluted water with a productive capacity of up to 70 cubic meters per hour. Able to pass blotches up to 30 mm. The head of the water column is 27-30 meters, depending on the viscosity of the liquid. It has a powerful air-cooled four-stroke engine.
- "Champion DHP40E" is an installation from a Chinese manufacturer for pumping clean water with foreign elements up to 5 mm in diameter. Pressure capacity and water column height - up to 45 meters. Liquid pumping capacity - up to 5 cubic meters per hour. The diameter of the suction and discharge nozzles is 40 mm. Engine start type - manual. Unit weight - 50 kg.
- Meran MPD 301 is a Chinese motor pump with a productive pumping capacity of up to 35 cubic meters per hour. The maximum height of the water column is 30 meters. The unit is intended for clean and slightly contaminated water with inclusions up to 6 mm. Four-stroke engine with manual start. The weight of the device is 55 kg.
- "Yanmar YDP 30 STE" - diesel pump for clean water and medium-dirty liquid with the entry of solid particles no more than 15 mm in diameter. Raises water to a height of 25 meters, pumping capacity is 60 cubic meters per hour. Has a manual engine start. The total weight of the unit is 40 kg. Outlet pipe diameter - 80 mm.
- "Skat MPD-1200E" is a joint Russian-Chinese device for medium-level liquid. Productivity - 72 cubic meters per hour. Allows particles up to 25 mm to pass through. Automatic start, four-stroke motor. Unit weight - 67 kg.
In different models, during repairs, both interchangeable and only original spare parts can be used. For example, Japanese and Italian units do not provide for the installation of non-original parts. In Chinese and Russian models, it is permissible to use similar spare parts from other manufacturers. This fact must be taken into account when choosing a product.
For an overview of a powerful diesel motor pump, see the video below.