News Prom-nasos

Dosing pumps from the Italian company AQUA have gained popularity thanks to their high reliability, ease of repair, and reasonable price. The largest segment consists of solenoid dosing pumps , which are used in various industries (washing stations, dosing of enzymes and yeast, water chlorination, grain disinfection, etc.). The design of a solenoid pump is quite simple. The main components are the solenoid itself, the dosing head, and the electronic control board. If the pump stops working or significantly deviates from the required parameters, the cause is usually a failure of one of the above-mentioned components. A pump model HC 150 (discontinued) was received for repair. The customer’s complaint was that the pump does not deliver the required dose of detergent. With a rated capacity of 5 l/h, the pump delivers only 1 l. After thorough inspection and test runs, the cause of the unsatisfactory performance was identified as deformation of the diaphragm. In the photo below, you can see the difference between a new diaphragm and a diaphragm that has reached the end of its service life. After replacing the diaphragm, the pump restored its performance and continues to successfully perform its function. In this case, the repair is cost-effective since the cost of the diaphragm is low. If several factors causing failure are identified during diagnostics, such as a burned-out solenoid and a failed electronic control board, purchasing a new dosing pump would be more appropriate. Specialists from our company are always ready to help you choose the right model.

A diesel-driven pumping station is an indispensable solution for operation in field conditions where there is no stationary power supply. This type of pumping equipment is especially relevant for farmers when carrying out irrigation works. In our range, you can select a pumping station suitable for almost any required capacity and pressure. When installed on a chassis, such a station can be used as a mobile fire-fighting unit, for emergency drainage, water supply, and other applications. A key feature of this type of equipment is the use of special high-performance diesel engines with a rotational speed of 3000 rpm, which is equivalent to the speed of a standard electric asynchronous motor. Only at this speed can the pump achieve its rated performance characteristics. A diesel pumping station includes: a pump, diesel engine, radiator, fuel tank, support frame, cardan shaft, air filter, control panel, and muffler. Materials: pump casing – cast iron with an anti-corrosion coating; shaft – chrome-plated steel; mechanical seal – Carbon-SiC-NBR. The advantage of this configuration is the absence of intermediate drive components (gearboxes, V-belts, or chain drives). Depending on power, the diesel engine consumes only 204–240 g/kWh of fuel. The station is equipped with an electronic digital device for monitoring all operating parameters of the internal combustion engine. Proper settings and timely maintenance ensure long-term and reliable operation of the pumping unit.

Undoubtedly, everyone knows that since the beginning of its existence, humanity has constantly used various systems for measuring distance (length), time, weight, and other quantities. Different cultures and peoples used different measurement methods. These included feet, yards, miles (nautical and land miles, which, by the way, differ in length), cubits, millimeters, phalanges, inches, and so on. In the context of our specialization — pumps , mechanical seals , and shut-off and control valves — let us clarify some specific aspects related to the use of length measurement units. Today, the most widespread measurement systems are the metric system (or the International System of Units, SI, based on the meter and, accordingly, the millimeter as part of the meter) and the English system of measures (Common System), which is based on the inch. The English system of measures is still widely used in the USA, Canada, Japan, and, of course, in the homeland of the inch — Great Britain. The metric system is used in Europe and most countries around the world, including Ukraine. With the development of science, technology, and trade, the need arose to “link” inches to millimeters. In 1930, the British Standards Institution adopted the inch value as 1 inch = 25.4 mm . The international designation for the inch is in . In practice, it is often denoted by a double quote symbol — “ ” ”. It would seem that the issue has finally been resolved. Although 25.4 is not a very convenient number for converting inches to millimeters or vice versa, with a calculator at hand even a primary school student can handle it. But there is one BUT! If you suddenly need to repair plumbing in your apartment and purchase a pipe fitting of, for example, 3/4" in a plumbing store, then measure its outer diameter, you will be surprised to find that it is approximately 26 mm (see photo below). 3/4’’ nipple Logically, if 1’’ = 25.4 mm, then 25.4 × 3/4 (0.75) = 19.05 mm. So where did 26 mm come from? Did the store clerk make a mistake? In fact, there is no mistake at all. Wherever you buy a fitting of this size, its outer diameter will be about 26 mm. Likewise, a plug or nipple of size 1’’ will have an outer diameter of about 33 mm (although logically it should be 25.4 mm). To understand this discrepancy, it is worth going back to the historical period when metal pipe production was just beginning. Since the inventor of the industrial method of manufacturing pipes from sheet metal was the English engineer James Russell, English units — inches — were used for pipe dimensions. In addition ( and this is the most important point! ), inches were used to measure the internal diameter of the pipe, not the external one. This is very convenient for calculating pipeline capacity, that is, for hydraulic calculations. The sheet thickness could vary slightly, and therefore the external diameter varied, while the internal flow diameter always had a constant value expressed in inches — 1/2’’, 3/4’’, 1’’, and so on. If you measure the internal diameter of the same fitting, you will see that it is about 20 mm (depending on the manufacturer, this dimension may vary from 19 to 21 mm). This size corresponds exactly to 3/4’’. Since pipes had to be connected, pipe threads (specifically, English inch threads) were cut on the pipe ends. Historically, it happened that this thread began to be called “inch” thread and was designated by the size of the internal pipe bore. Accordingly, it is clear that a certain wall thickness is required to cut a thread, because it is impossible to cut a thread of the actual size 3/4’’ (that is, 19.05 mm) on a pipe that has the same internal diameter. In our case, for this size the wall thickness is 3.5 mm. Thus: 19.05 + 3.5 + 3.5 = 26.05 mm. That is why if you buy a 3/4’’ fitting in a plumbing store, its outer diameter will be about 26 mm; for 1/2’’ — about 21 mm; and for 1’’ — about 33 mm. The table below shows other commonly used pipeline diameters. As you can see, the first column on the left shows the so-called nominal pipeline diameter (that is, the conditional internal diameter of the pipe). It is called conditional because the pipe may have different wall thicknesses, and accordingly the cross-sectional area may differ slightly. If you divide this value by 1 inch (25.4 mm), you will obtain exactly those English inches that are traditionally used to mark plumbing fittings. That is: 20 / 25.4 = 0.78 (3/4 inch), 25 / 25.4 = 0.98 (1 inch), 32 / 25.4 = 1.26 (1.25 inches or 1 ¼ inches). The column to the right shows the actual outer diameter of the pipe in millimeters. This specific feature of pipe inches and their actual discrepancy with millimeters should be taken into account when selecting pumping equipment and connecting elements for installation and piping.

Metering pumps are used for accurate and safe dosing of chemical substances, as well as for their transportation in various technological processes. Areas of application: chemical, pharmaceutical, food, water treatment industries, and others. Chemical industry: for precise dosing of reagents in production processes. Water treatment systems: for dosing coagulants or disinfectants. Food industry: for dosing additives, colorants, and flavorings. Pharmaceutical industry: for supplying medicinal products in the required dosage. The main purpose of metering pumps: accurate dosing; flow rate control; process automation. AQUA pumps are equipped with ball check valves; the standard configuration includes PYREX® ball valves and Viton® seals. All electromagnetically driven metering pumps, except DC models, are equipped with a level sensor input. AQUA offers a range of electromagnetic pumps capable of operating over a wide range of pressures and flow rates: pressure up to 20 bar and flow rates up to 45 liters per hour. Parameters that are important to consider when selecting a metering pump: Dosing accuracy (speed and precision of dose measurement). Type and properties of the liquid (viscosity, chemical aggressiveness, temperature). Capacity and pressure. Construction materials (special materials are required for aggressive and corrosive media).

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.

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.

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.

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 .

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.

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.