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Carbon dioxide (CO₂) – a colorless gas (under normal conditions), easily soluble in water. In addition to the widely known fact that it is an important element of the photosynthesis process, this substance is widely used in the food, pharmaceutical, agricultural, and mechanical engineering industries, among others. In the technological process of carbon dioxide production, transportation means are essential, namely a pump unit. Carbon dioxide is in a liquid state at low temperature and high pressure. In the photo below – a vertical multistage pump installed in the carbon dioxide production line. Frost (frozen water vapor contained in the air) is observed on the pump surface and shut-off valve . The feature of this type of pumps is the ability to generate high pressure due to the number of impellers located on a single shaft one after another. This design allows achieving significant pressures (from 3 to 25 bar). The disadvantage of vertical configuration is the danger of forming steam-air "plugs" in the upper part of the pump due to high liquid velocity and, consequently, local boiling of carbon dioxide. It is in this part of the pump that the mechanical seal is located. This element prevents liquid leakage from the working chamber and should be cooled by the pumped liquid, but since a steam-air zone is formed where the seal operates without liquid – "dry running", the service life of the mechanical seal is significantly reduced. In the case of "dry running", rapid wear of friction pairs and melting of rubber rings occurs. To eliminate this problem, a bypass tube can be used. This pump piping element allows directing vapors to the suction line, thereby preventing the formation of a steam-air "pocket" in the mechanical seal area.

Manual barrel pumps are the optimal solution for small enterprises, car service stations, food production facilities—anytime there is a need for product dispensing or drawing a small amount of liquid for a specific technological process. These pumps can be used for dispensing from large containers of automotive oil, vegetable oil, fertilizers, enzyme preparations, plant protection agents, antifreeze, glycol, alcohol, diesel fuel, gasoline, and more. Our range of manual barrel pumps is represented by the Italian manufacturer FLUIMAC. The “yellow” pump, model N-04, is designed for working with fuels, lubricants, and fat-based products. The pump's construction is simple and reliable. The extendable rod allows use in containers of various depths, and the FKM rubber seal ensures chemical resistance and long service life. The “blue” pump, model N-04 Blue, has a similar design, except it uses PTE rubber seals, allowing it to handle acid solutions, vinegar, adipic acid, and other chemically active substances. The pump delivers 0.3 L per handle stroke, with a ¾ inch connection. The telescopic suction tube is adjustable from 500 to 950 mm and has a diameter of 34 mm.

In general, for high-viscosity products, pump types such as impeller , lobe , gear , and diaphragm are commonly used — these are primarily positive displacement pumps. For a number of products such as oil, transformer oil, a mixture of water and flour in a 1:4 ratio, beer wort, mash, and similar liquids, a centrifugal pump with an open or wide impeller can be successfully used. An important aspect when using such a pump with the above-mentioned products is the need to rinse the pump chamber after the pumping process is complete. This type of pump is equipped with a mechanical seal , which generally does not require maintenance during operation. However, if the pumped product is prone to crystallization, sticking, or clumping, this may cause damage to the seal. The photo below shows damage to the rubber bellows of the mechanical seal. This occurred due to a failure to rinse the pump chamber in time. As a result, the friction surfaces were "glued" together by a starchy mixture, and when the pump was restarted, the rubber bellows tore. As a result, the product began to leak from the working chamber into the space between the pump support and the electric motor. In this case, the operator noticed the leak in time, and the mechanical seal was replaced. Otherwise, prolonged leakage could have caused damage to the electric motor, leading to significantly higher repair costs and delays in the technological process. Our company not only sells pumping equipment and spare parts but also provides qualified selection and maintenance recommendations.

Pumps with a "wet rotor" have received their name due to the design feature – the pump rotor is supported by sliding bearings and is fully immersed in water. The main advantage of this design is its noiseless operation. Since the rotor rotates on sliding bearings and lacks a cooling fan, the pump operates very quietly. Sometimes, the rotor's rotation can only be detected using a magnetic indicator. Another advantage of this design is the absence of seals. It is a practically hermetic pump with only a vent plug at the end. Moreover, most pumps with a "wet rotor" are equipped with a rotor speed switch, allowing optimal adjustment of the pump to your heating system even with minor calculation errors. Undoubtedly, in private heating systems and in thermal nodes of multi-apartment buildings, where noise level is a critical factor, these pumps are virtually irreplaceable. However, in industrial heating systems, boiler rooms, wood drying plants, and circulation cooling systems in the food industry, this design reveals its "downsides". Since the gap between the rotor and stator is very small (0.5–2 mm depending on the model), the water cleanliness requirements are very high. Inclusions like scale, dirt, gasket remnants, or electrode fragments from pipe repairs or valve replacements can lead to pump failure. This type of pump has low maintainability. Typically, service centers do not perform separate repairs of the rotor or stator or replace ceramic bearings. Instead, they offer complete replacement of the pump assembly, which costs about 80% of the pump's total price. Another significant drawback, especially for industrial pumps, is the price. Many global leaders in pump equipment, such as Wilo, Grundfos, and DAB, have discontinued models with mechanical speed switching and now offer similar models with frequency control, which can be more than twice as expensive as the "old" models. An alternative solution for replacing discontinued European-made pumps could be single-speed "wet rotor" pumps by EDWIN or using inline pumps with a "dry rotor" featuring a standard asynchronous motor.

Particulate filters are one of the main components of a vehicle’s exhaust system. This device ensures the purification of exhaust gases from an internal combustion engine from solid particulate matter, known as soot, which forms during fuel combustion. Modern automotive engines are equipped with automatic systems for filter regeneration, which operate without driver intervention. However, over time, this cleaning becomes insufficient, and the filter must be removed for cleaning at specialized facilities. There are two main methods of cleaning particulate filters – chemical and hydrodynamic . The chemical method requires the use of special reagents and appropriate equipment. In contrast, the hydrodynamic method is more cost-effective and environmentally friendly. It allows restoration of up to 98% of the filter’s capacity. The main component of the hydrodynamic cleaning system is a centrifugal pump . Depending on the filter type, pumps with flow rates from 50 to 150 l/min and pressure of 4–7 bar are used. The washing system can be of circulating or flow-through type. In circulating systems (where dirty water is filtered and reused), it is recommended to use single- or two-stage pumps with a pressure of 4–5 bar. These pumps have an impeller wide enough to prevent clogging by soot and dirt particles. In flow-through systems, vertical multistage high-pressure pumps (5–7 bar) can be used. The washing water does not return to the pump but is drained into the sewage, eliminating the risk of contamination. Our specialists are always ready to assist you in the selection of pumping equipment for particulate filter cleaning stations.

The use of vacuum in alcohol rectification significantly reduces the energy consumption of the process. At lower pressures, the boiling point of the mixture (mash) is greatly reduced. As a result of the lower temperature – energy savings – gas, electricity. Technologists at distilleries refer to this method of rectification simply as a “vacuum column.” To create this vacuum, liquid ring vacuum pumps are used. This type of pump has all the necessary features for use in alcohol production – high performance, ease of operation and maintenance, and sufficient vacuum depth for the technological process. Other important factors include the materials used to manufacture the pump and the explosion-proof design of the electric motor. Since the vacuum pump extracts not clean air but a rather aggressive medium in the form of alcohol vapors and related compounds, the wetted parts must be made of stainless steel AISI 304 or AISI 316. Our company regularly supplies liquid ring vacuum pumps manufactured by BTS Engineering and the Turkish company EMSE . The entire range of pumps we supply is supported by full service (spare parts supply, technical documentation support) and competes fully in terms of technical specifications and price with manufacturers such as GÜCÜM, GARUDA, Hydro-Vacuum, NASH, GENVAC, and Robuschi.

Impeller pumps are used in many industries and sectors: Food production of products and beverages, in contact with products such as butter, pastes, sugar, honey, chocolate, yogurt, extracts, and so on. Cosmetic and pharmaceutical production of liquid soap, lotions, creams, and shampoos. Paint and coating industry for liquids such as paint, ink, glue. The AD30.1 series pumps are pumps with a flexible impeller, made from synthetic materials (neoprene, EPDM, NBR), completely non-toxic and resistant to a wide range of acids. These pumps have proven to be effective for pumping sensitive liquids of various viscosities that may contain solid particles. To learn more or purchase such a pump, click here .

In the modern world, wind turbines are rapidly gaining popularity in various fields. They are used both for personal needs and for selling electricity for passive income. We are installing a vertical wind turbine with a 10 kW 380 V H-Type series. This wind turbine can withstand wind gusts of up to 65 m/s. The operating temperature range is from -40 °C to +80 °C. The diameter of the wind wheel is 3.9 m. It consists of three blades made of aluminum alloy and is protected from overload by an electromagnet, which serves to brake the wind turbine. The magnet is made of a rare earth neodymium iron-boron material, NdFeB, which is also called the "king of magnets".

Hydraulic motor pumps from the Italian company are reliable, easy to use, and simple to maintain. Due to the use of hydraulic drive, such a pump can easily fill tanks, barrels, etc. The main areas of application are: irrigation, fire fighting, creating water troughs, and so on. The maximum performance of this pump is 20 m³/h, and the lift height reaches 27 meters of water column. You can order or learn more about this pump by following this link .

Paddle mixer series ML is designed for mixing liquids and solutions without the presence of solid insoluble inclusions larger than 5 mm, with dynamic viscosity not exceeding 400-1000 cP, and temperature not higher than 90°C. All parts of the mixer that come into contact with the product are made of stainless steel AISI 304 (equivalent to 12Х18Н10Т). Operating conditions: ambient temperature not exceeding 40°C; relative humidity not exceeding 80%. The paddle mixer ML consists of the following main parts (see the diagram): 1 — electric motor, 2 — worm gear reducer, single-stage, 3 — support flange with shaft sealing, 4 — shaft, 5 — impeller. The operating principle of the mixer is based on transmitting torque from the electric motor to the impeller through a single-stage worm gear reducer. The reducer reduces the speed of the mixer shaft to the required level, while increasing the torque. The mixer is driven by a three-phase asynchronous electric motor (pos. 1). The worm gear reducer (pos. 2) is single-stage and housed in an aluminum casing. The ML mixer has a support flange with shaft sealing (pos. 3), designed for mounting the mixer on a tank or special stand. The shaft (pos. 4) is hollow and made of stainless steel. The impeller blades (pos. 5) are positioned at a 45° angle to the shaft axis. When the impeller rotates, the axial force directs the product being mixed down along the shaft axis and partially in the radial direction, ensuring proper mixing and preventing sedimentation at the bottom of the tank. For poorly soluble and more viscous products (viscosity 2000-5000 cP), it is advisable to use two-level mixers with two rows of impellers, offset at a 45° angle. Applications of Paddle Mixers The paddle mixer has a simple and reliable design and is widely used in the chemical industry. It is essential not only for mixing liquid reagents but also in cases where the mixing agent is gas or air, as well as for mixing liquids and gases. Besides chemical production, paddle mixers are used in: the paint and coatings industry for the production of coloring compounds and colorants; the oil industry for mixing petroleum products; the pharmaceutical industry for creating various liquid medicines; the construction industry for making building mortars and mixtures.