News Prom-nasos
January 19, 2026
WM vortex oil pumps

WM vortex oil pumps are used for pumping hot water, ethylene glycol, light oils, lubricants, and fuels without solid impurities or fibrous inclusions. The temperature of the pumped liquid can reach up to 200 °C.
The operating principle is based on creating a vortex in the working chamber. The liquid enters the pump, is captured by the impeller blades, and as a result of centrifugal force and vortex formation receives an energy impulse. This allows the liquid to move toward the outlet under high pressure.
Pumping temperature ranges for various liquids: water +5 °C ~ +160 °C; thermal oil +5 °C ~ +200 °C; ethylene glycol −30 °C ~ +180 °C. This is possible thanks to a special mechanical seal that can withstand high temperatures.
The manufacturer supplies the pumps with mating flanges and gaskets.
January 14, 2026
Multistage pumps

Multistage pumps are a type of pump that features several working stages (impellers or wheels), allowing the pressure of a liquid or gas to be increased at each stage of operation. Each stage raises the pressure of the fluid by a certain amount, and as a result, the pump can provide high pressure with a relatively small pumped volume.
Operating principle: The fluid enters the first stage, where its pressure is increased. It is then transferred to the next stage, where the pressure rises again, and so on through all stages.
Types of designs:
Horizontal: commonly used in industry for pumping water, chemical solutions, and petroleum products.
Vertical: used for pumping water to great heights, particularly in water supply and wastewater systems.
Advantages:
Ability to achieve high pressure values.
Capability to pump large volumes of fluid with relatively compact dimensions.
High reliability and stable operation under heavy loads.
Applications: water supply and wastewater disposal; high-temperature and chemical processes; cooling and heating systems; pumping petroleum products and chemicals.
January 12, 2026
Pumps driven by PTO

PTO-driven pumps (power take-off shaft) are used for irrigation in agriculture and horticulture. They are connected to a tractor or other machinery via the PTO, which makes it possible to use the mechanical power of the vehicle to operate the pump.
The PTO is a system that allows mechanical energy to be transmitted from the engine to various units and devices, such as pumps, mowers, plows, etc.
In roller pumps, such as ML20 , a roller rotation system is typically used to pump the liquid. These pumps can vary in power and design depending on the specific application requirements.
The pump housing is made of cast iron, the rotor has nylon rollers, and the cover is also made of cast iron. The set includes a chain for fastening to a fixed point on the tractor.
January 10, 2026
Kodzi Angel Leaven alcohol yeast

Alcohol yeast Kodzi Angel Leaven are specially fermented yeast developed for processing grain raw materials (rice, corn, wheat, barley, etc.) without prior mashing, that is, without cooking and saccharification.
Advantages of using Kodzi Angel yeast:
do not require the addition of enzyme preparations;
ensure fast fermentation;
high alcohol yield from grain;
well tolerate the addition of sugar at various concentrations and temperature fluctuations.
Currently, there is a PROMOTION on Kodzi Angel Leaven yeast. When purchasing from 2 to 5 packs, a DISCOUNT applies.
For the production of alcoholic beverages in professional environments, high-quality alcohol yeast resistant to high temperatures, ethanol, and acids are used — Angel Thermal Tolerance Alcohol Active Dry Yeast .
January 9, 2026
Pump protection control panel

Pump protection control panel is a device that monitors the operation of the pump and protects it against emergency operating conditions.
It is used in water supply and wastewater systems. The control panel enables automatic pump control and monitors various operating parameters, ensuring reliable and uninterrupted operation. It is suitable for the following types of pumps: centrifugal, sewage, borehole (submersible), and others.
The pump protection panel performs the following functions:
phase loss protection;
undervoltage protection;
dry-run protection;
overvoltage protection;
short-circuit protection, and others.
On our website, you will find a wide selection of pump protection panels of various power ratings.
January 7, 2026
Grain disinfection (fumigation) system

When preparing grain material for sowing, in addition to generally accepted measures such as sorting and screening (removal of husks and foreign impurities), an important element is disinfection against quarantine insect pests.
Seed treatment with fungicidal dressings is a mandatory element of grain crop cultivation technologies.
Special disinfection stations are used for this task, the main components of which are grain mixers of various types and a pumping system for dosing the disinfecting agent.
The method consists in the fact that when grain is loaded into the elevator, the grain flow is evenly coated with fine mist particles containing the treatment agent.
The figure below shows an example of a disinfectant dosing station
The pumping station is implemented on the basis of a peristaltic pump. The functional design allows the operator to set the dosage of the agent depending on the type of grain and the productivity of the processing line.
Such a station can be assembled using dosing pumps of various types. For low flow rates, a solenoid dosing pump with a capacity from 1 to 15 liters per hour is sufficient.
Higher-capacity stations use peristaltic , diaphragm , or plunger dosing pumps, with flow rates from 15 to 300 liters per hour.
The agent is dosed either directly through a nozzle (in small systems) or into the treatment supply pipeline, where it can be additionally diluted with water and atomized by a high-pressure pump .
Diaphragm dosing pump
On our website, you can select any of the above-mentioned pumps to solve the task of grain crop disinfection.
We especially recommend paying attention to the FLUIMAC HELIOS series of peristaltic pumps.
In this pump series, it is possible to choose models with fixed flow rates, with capacity adjustment via a variator, as well as with a built-in frequency converter.
December 8, 2025
Pump flow control diagram during decanting

Decanter centrifuges are used for separating mixtures, emulsions, and various products into solid and liquid fractions by means of centrifugal force.
These units are widely used in various industries — chemical, food, mining, pharmaceutical, etc. Accordingly, the range of processed liquids is very broad.
To achieve the highest efficiency of the decanter, it is important to feed the product at a constant, stable flow rate, because if the volume of liquid supplied to the decanter fluctuates, the output products will have varying properties (the moisture content of the solid phase and the clarity/purity of the liquid fraction will constantly change).
The diagram below shows an example of maintaining a constant, stable flow rate using a flow meter (specifically, a rotameter with a milliamp signal).
This simplified diagram illustrates the principle of maintaining a constant supply of soybean oil to the decanter.
The product is fed to the decanter by means of a cantilever stainless steel pump . A rotameter with a 4–20 mA signal is installed on the supply pipeline; the signal transmitted by the rotameter to the control unit allows the pump speed to be adjusted in order to maintain a constant flow rate, thereby ensuring the highest quality of the output products.
December 5, 2025
Masts for wind turbines

The installation of a wind turbine requires a mast (tower) on which it will be mounted. The height and design of the mast are calculated individually for each case.
The designs of vertical supports can vary significantly.
Guyed mast
This type of support is used for horizontal-axis wind turbines with a capacity of up to 10 kW.
Advantages:
low cost due to the use of pipes and profiles with a smaller cross-section;
possibility of installation without using a crane.
Disadvantages:
occupies a large area, since the guy wires must be anchored around the mast at a specific angle;
lower reliability compared to other types of supports;
requires maintenance.
Segmented mast
The support for a wind turbine consists of several segments (pipes of different diameters). The segments are connected to each other with flanges.
This type of structure is used for installing wind turbines across a wide power range. The mast height can reach 36–40 m.
Advantages:
high structural reliability;
simple and fast installation;
does not require maintenance.
Disadvantages:
the need to use a crane to install the wind turbine;
relatively high cost, as thick-walled pipes or profiles are used.
Monolithic conical mast
The vertical support is manufactured by welding steel strips into a hexagonal or octagonal shape.
The support is a solid conical structure with two flanges: a base flange for mounting to the foundation and a flange for mounting the wind turbine. The height of the support is limited to 12 m.
Advantages:
high structural reliability;
fastest installation;
does not require maintenance.
Disadvantages:
the need to use a crane to install the wind turbine, as well as transportation difficulties, since the support is non-dismantlable;
relatively high cost due to the use of thick-walled pipes or profiles.
Lattice mast
This is a mast manufactured using standard structural steel sections (angle steel, square or rectangular tube, round tube, etc.).
The mast height can range from 12 to 36 m.
Advantages:
high structural reliability;
does not require maintenance.
Disadvantages:
the need for welding work;
complexity of manufacturing.
Each structure requires an individual approach and is calculated for strength, rigidity, and stability.
When calculating the support, the main input data are the mass of the wind turbine, the mast height, and the wind pressure in the region where the wind turbine will be installed.
December 3, 2025
New series of impeller pumps from Italian manufacturer LIVERANI

LIVERANI impeller pumps are low-speed rotary pumps made of stainless steel with a flexible impeller. They are especially suitable for pumping delicate, fragile, and viscous liquids, as well as liquids containing solid particles in suspension.
LIVERANI pumps are widely used in the ECOLOGICAL sector (wine, must, grape must and destemmed grapes), in the FOOD INDUSTRY (beer, fruit pulp and juice, honey, liquid sugar, syrups, glucose, milk, melted butter, yogurt, liquid eggs, oil, tomato pulp and juice, brine, etc.), in the CHEMICAL INDUSTRY (starch, water-based adhesives, emulsions, glycerin, wax, detergents, rubber latex, photographic processing liquids, polyelectrolytes, paints, inks, industrial effluents, etc.), as well as in COSMETIC and PHARMACEUTICAL production (liquid soap, cleaning lotions, creams, shampoos, etc.).
Simple installation principle, a wide choice of materials and pump unit configurations
The quality systems applied throughout the entire production process allow us to offer a wide, versatile, and customized product range.
Each pump series can be manufactured with different types of impellers, mechanical seals, couplings, and in various configurations, namely:
pump with open shaft;
coaxial motorized pump (with an electric motor or an orbital hydraulic motor);
with gearbox;
with pulley (on a trolley or base);
with a mechanical speed variator or with a frequency converter.
December 1, 2025
Reasons for end seal and gland seal leakage

A mechanical seal or a reinforced lip seal (packing), according to the manufacturer’s instructions, does not require maintenance during operation. Undoubtedly, this is an exceptional advantage for anyone using a pump with such a sealing element. But there is one BUT!
The operating instructions for the product contain clear guidelines under which conditions the hydraulic part will maintain its tightness:
absence of “dry running,” i.e., operation of the pump without liquid present in the flow path. “Dry” operation is accompanied by rapid heating of the friction pairs and melting of the rubber bellows or rubber ring;
bearing wear leads to increased vibrations and impact loads on the seal’s friction pairs, resulting in leakage and possible subsequent flooding of the electric motor;
pumping liquids that contain abrasives or inclusions that may damage the seal;
ignoring the need to flush the pump after completion of operation. When pumping liquids prone to crystallization or sticking, the pump should be flushed to prevent the friction pairs from sticking together or the edge of the rubber packing lip from adhering to the shaft.
In the photos below, you can observe the consequences of packing leakage. When pumping milk, the containers were emptied “to zero,” followed by dry running. Pump flushing was also not performed.
As can be seen in the photos, the pump was operated for a long time after the packing began to leak. This led to the need to rewind the motor, replace the bearings, and replace the packing.






























































































































