Pumps - Import export

Villina-VS1-M type pumps are designed for use in oil and gas and chemical industries for transit of explosive and highly flammable liquids as well as corrosive media and natural gas liquids. A distinctive feature of these pumps is the ability to transit contaminated liquids with particle size of 3 to 12 mm (depending on the pump rate). MAIN SPECIFICATIONS - Pump rate ranges: 2 to 108 m3/h; - Head: 11 to 178.5 m; - Temperature of the pumped fluid: -50°С to +440°С.

ADVANTAGES - GNVC-P vertical semi-submersible pumps are developed and manufactured according to individual parameters of the Customer and in compliance with normative documents. - Time of manufacture: 90 days. - Warranty period: 24 months. - Chemical pumps are capable of pumping liquids with viscosity up to 35 cSt, and density up to 2,000 kg/m3. PERFORMANCE SPECIFICATIONS - Purpose: transit of corrosive, toxic, explosive and flammable fluids; - Pump rate ranges: 1 to 55 m3/h; - Head ranges: 5 to 250 m; - Seal type: a magnetic coupling according to API 685 with a sealing sleeve made of Hastelloy alloy (standard version) ensures 100% tightness; - Temperature of the pumped fluid: up to plus 250°С; - Shaft speed: 2,900 rpm; - Structural design: type VS4 according to API 610, vertical type, fixed installation on the container neck on the base plate; - Submergence: 1 to 6 metres, with a length increment of 10 cm for the choice of a specific immersed part length of the pump.

Centrifugal pumps have well-known advantages such as uniform pumping without surges, the ability to create high pressures at low pump rate in multi-stage designs, long service life and others. Advantages: the fluid can be taken in at a point lower than the axis of the inlet suction pipe without using a pre-installed vacuum pump. - Purpose: transit of corrosive, toxic, explosive and flammable fluids at insufficient suction pressure; - Pump rate ranges: 0.8 to 450 m3/h; - Head ranges: 3 to 132 m; - Self-priming height (depth): up to 6 metres; - Seal type: magnetic coupling according to API 685 or tandem mechanical seal according to API 682; - Climatic version: for moderate and for moderate and cold climate; - Temperature of the pumped fluid: for GNGC-S, GNGC-S-M up to plus 350°С, for NCG-S up to plus 450°С; - Shaft speed: 1,450 or 2,900 rpm; - Structural design: ОН-2 single-stage back pull-out pump according to API 610 or a single block.

Magnetic couplings are used as transmission mechanisms in modern pumps, which makes it possible to obtain a qualitatively new 100% tight device without making essential changes to the design of the electric drive and the wet end of the pump. At present Villina offers GNVC, GNGC and GNVC-P series vertical, horizontal and semi-submersible centrifugal pumps with magnetic couplings, designed for pumping explosive and flammable, toxic and corrosive fluids (petroleum products, alkalis, acids, alcohols, etc). PURPOSE Magnetic couplings for Villina centrifugal pumps allow for transmission of torque from the electric motor to the pump shaft using magnetic fields generated by permanent magnets instead of mechanical engagement devices. At the same time, there is no need to withdraw the shaft from the pump wet end to the drive device, therefore the wet end can be made in the form of a completely sealed system free of leaks which are typical for pumps with mechanical shaft seals.

During the construction of an industrial facility, much attention is paid to the strength of the service pipelines fasteners. It is also necessary to provide reliable connection of all units of industrial equipment with the pipelines. In this case, it is not always possible The use of a permanent welded joint is not always possible, therefore, there are various types of weld-free tight joints. FLANGE JOINT COMPONENTS At present, one of the most effective connections used in industrial facilities is a flange joint. This is an airtight connection that provides high structural integrity, consists of two flanges, fasteners (studs or bolts, washers, nuts) and gaskets. An important matter in choosing a set of flanges is tightness. The gasket material must have good elasticity, strength, resistance to the operating temperature conditions and to the media with which direct contact is expected. For flange joints, Villina company uses the following types

The design of an electric pump section is similar to the design of a standard vertical electric pump with a GNVC series magnetic coupling, which allows for the use of already proven technical solutions: impeller blades with curved surfaces create an angle of attack and partially allow for switching to the laminar mode of wall-adjacent flow on their surface and provide more efficient deflection of liquid to the periphery; a closed type impeller has a higher efficiency and longer service life compared to open and semi-closed impellers; bell-type fit of the impeller on the pump shaft precisely keeps the geometric position of the impeller with respect to the guide vanes; the vertical position of the shaft resting on a heavy-duty carrying cushion in the vertical plane, and sleeve type bearings in the horizontal plane help prevent sagging of the shaft, as for instance, in the horizontal design of the pump, and play and runout; the use of sleeve type bearings

The main parts of magnetic couplings used in GNVC series vertical pumps are the driving (external) and the driven (internal) half couplings, and a sealing sleeve between the half couplings. The exceptional reliability of Villina magnetic couplings is the result of a high-tech design: the enclosed capsular design of the half couplings (enclosed body) secures the magnetic systems from environmental effects; the use of special adhesives allows for fast fixture of domestically produced permanent magnets based on rare-earth elements on the half coupling ferrules; double protection against overheating and demagnetization is implemented using the temperature sensor of the sealing sleeve, which is triggered when the maximum acceptable operating temperature is exceeded by 20 to 50°C, with the use of magnets with Curie point of more than 100°C higher than the maximum acceptable operating fluid temperature; the sealing sleeve made of high-strength Hastelloy alloys

Villina-GNVCP-2T type vertical electric semi-submersible pumping units are designed for transit in stationary conditions of neutral, corrosive, toxic, as well as explosive and fire hazardous liquids, the vapors of which can form explosive mixtures with air. These are used in gas, petrochemical, petroleum refining and other industries. The vertical semi-submersible pump – the pump part is fully or partially in the pumped liquid. The unit consists of a pump part, drive sections, a base plate, a device that transmits torque from the drive, an electric motor (drive). The ground part comprises a console fastened to the base plate, an electric motor mounted and fastened to the console, and a mechanical seal support system fastened to a base plate. The semi-submersible part comprises drive sections fastened to the base plate, an elastic coupling body connected to the lower drive section, a pump connected to the elastic coupling body and a discharge line.

Vertical semi-submersible pumps are designed to solve the problem of pumping liquid out of a tank when a part of the pump is within the pumped medium. Pump units are used with the engine speed up to 3,000 rpm. Therefore, the temperature conditions for semi-submersible pumping units are up to 250 degrees. Centrifugal semi-submersible pumps are widely used both in petroleum refining (petroleum and drainage pumps) and the chemical industry, and in the food industry. They are used for transit of various liquids and mixtures including explosive and flammable fluids (oil and gas products, etc.). Semi-submersible pumps are in between surface and submersible units and combine all their advantages, nevertheless, a semi-submersible pump is not designed to carry out specialized tasks for which these two types of units were created. Semi-submersible pumps consist of an electric motor, a working section and immersed sections. The engine is placed on a base plate

Villina-VS1-М, Villina-GNVC-K and Villina-GNGC-K type centrifugal canned pump units with combined seals are widely used in modern gas industries, petrochemical and petroleum refining industries. They are designed for transiting neutral, corrosive, toxic, as well as explosive and flammable liquids in stationary conditions, the vapors of which can form explosive mixtures with air. For such conditions, mechanical seals with operating temperatures up to 425°C of well-known companies are used, such as: OOO NPC ANOD, JSC TREM ENGINEERING, UNICHIMTEK Group of Companies and others, as well as permanent magnets (SmCo) with operating temperatures up to 450°C. Villina type units are made in three versions as regards the spatial location of the pump rotor: vertical ground-level (Villina-VS1-M) - the pumped liquid is supplied to the pump part of the unit through a suction pipe located radially to the pump rotor. The unit consists of a pump part, a device

Horizontal canned pumps with welded bodies (Villina-GNGC) are designed for transit in stationary conditions of neutral, corrosive, toxic, as well as explosive and fire hazardous liquids, the vapors of which can form explosive mixtures with air. These pumps are used in petrochemical, petroleum refining and other industries. single-stage or multi-stage version of the unit design (increased discharge pressure, in contrast to back pull-out pumps); high efficiency of the impellers; a possibility to pump contaminated liquids with 100% tightness (for pumping units with combined seals); Temperature of the pumped fluid: up to +420°С.

The Villina GNGC series horizontal canned centrifugal pumps with magnetic couplings are widely used in oil and gas companies of Russia and its neighbouring countries for transit of explosive and flammable, toxic and corrosive fluids. The horizontal arrangement allows the use of a GNGC as a replacement for technically obsolete and physically worn pumps without significantly changing the geometry of the location and pump lines group assembly systems. 100% tightness, structural design in accordance with API 610, 685 (ISO 13709) standards and explosion-proof design of GNGC pumps are approved by design institutes and Rostekhnadzor for use in projects for modernization, reconstruction or construction of new facilities. GNGC horizontal pumps with magnetic couplings provide for axial position of the suction pipe and radial position of the delivery pipe. The motor and pump body are mounted on supports (OH 2 according to API 610), the drive shaft of the motor

Our products include Villina-GNGC-2T type centrifugal horizontal pumps with tandem mechanical seals type according to your parameters. These are used for transit in stationary conditions of neutral, corrosive, toxic, as well as explosive and fire hazardous liquids, the vapors of which can form explosive mixtures with air. The units are mainly used by petrochemical industry companies. Parameters of operating fluids (liquids): temperature from -50oС to +400oС viscosity up to 160 cSt density 2,000 kg/m3 max, with a high concentration of particles particle size over 0.2 mm, but not exceeding free passage of the impeller (3 to 12 mm depending on the pump rate) For such conditions, mechanical seals (operating temperature up to 425°C) of well-known companies are used, such as: OOO NPC ANOD, JSC TREM ENGINEERING, UNICHIMTEK Group of Companies and others DESIGN FEATURES The unit consists of a pump, a base plate, an electric motor, a casing and a support system.

One of the priority areas in the production of Villina pumping equipment was initially the development of a specialized line of pumps designed for pumping harsh chemical fluids. At present, we are ready to offer you Villina high-end lined centrifugal canned pumps having design life of 20 years for pumping mineral and organic acids, alkalis, salts, oxides and anhydrides, including chlorides, as well as alcohols, esters, aromatic hydrocarbons, ketones, aldehydes and other media which contain various concentrations of mordant substances. Modern technology makes rapid progress, and in place of pumps used earlier for transit of corrosive fluids made of chemically resistant yet expensive steels such as KhN65МV, N70MFV, 06KhN28MDT, lined pumps are widely used now. In accordance with para. 51 of the Safety Rules of chemically hazardous production facilities, corrosion-resistant non-metallic coatings (polyethylene, fluoroplastic) can be used to protect equipment and pipelines

Modern petrochemical and gas industries typically use horizontal centrifugal canned pump units with magnetic couplings similar to Villina-GNGC type pumps. They are designed for transiting neutral, corrosive, toxic, as well as explosive and flammable liquids in stationary conditions, the vapors of which can form explosive mixtures with air. Magnetic coupling pumps combine complete tightness, smooth operation, long service life and high maintainability. A sub-type of horizontal pumping units are high-temperature pumps Temperature of the pumped fluid: -50°C to +420°C; viscosity up to 26 cSt; density 2,000 kg/m3 maximum; mass concentration of solid non-abrasive inclusions up to 0.2%; size 0.2 mm maximum Permanent magnets (SmCo) with an operating temperature of up to 450°C are used for operation in these temperature conditions. The pump, a part of the pumping unit, is a single-stage or multi-stage horizontal centrifugal section-type

Centrifugal pumps have well-known advantages such as uniform pumping without surges, the ability to create high pressures at low pump rate in multi-stage designs, long service life and others. However, operation of centrifugal pumps requires building positive pressure (pressure boosting) upstream of the inlet suction pipe for the following reasons: to fill the pump body with the pumped fluid in order to avoid a "dry start" to prevent cavitation during pump operation. Classic methods for creating pressure boosting before centrifugal pumps can be: installation of a tank from which the fluid is pumped, several meters above the axis of the pump shaft and placing the pump in the draw-off sump; inclusion of an additional vacuum pump into the process, which is capable of building the desired pressure boosting of several metres. HOW IS THE PROBLEM OF CREATING A PRESSURE BOOSTING IN MODERN SELF-PRIMING CENTRIFUGAL PUMPS SOLVED? Villina company offers you Villina self-priming GNGC series

One-plunger pumping units PT 1.1 with capacity up to 8 m3/h and pressure up to 40 MPa Three-plunger pump units according to API 674 (3-d edition) PT 1.3 and PT 2.3 with a capacity of 0.2 m3/h to 60 m3/h and pressure up to 80 MPa Five-plunger pumping units Pumping units are designed for pumping various liquids, including chemically active ones, with temperatures from -15 ° С to + 450 ° С, kinematic viscosity of not more than 8 cm / s, with the content of solid non-abrasive particles up to 0.2% by weight and size up to 0.2 mm.

We offer bowls and impellers for centrifugal pumps made of: steel 20H13L, steel 12H18N9TL, steel 12H18N12M3TL according to GOST 977-88.