Pumps are available in many different types. The most common and popular - centrifugal, among which are particularly popular - the console and console-monoblock. With their help, problems are solved in many sectors: domestic, municipal, energy, industrial, agricultural. We offer you the best cantilever (console-monoblock) pumps for heating, water supply, air conditioning, irrigation and fire fighting. Choose.
Top cantilever water pumps
Grundfos NK - console pump for any user
Normally self-priming centrifugal unit with a single-stage cantilever pump, 1-, 3-phase asynchronous electric motor and frame base. The first is created with a radial or tangential tap. The second is 2-, 4-, 6-pole, equipped with a fan.
At the ends of their shafts, the nodes are connected by a coupling (rigid or with a spacer). Head from 5 to 150 m; flow rate from 8 to 2000 m3 / h; power from 0.25 to 355 kW. Mounted on a concrete foundation. Filled with water before starting. Controlled by a terminal box.
Pros:
- wide range of applications: water supply and transportation of liquids, pressure boosting and ventilation, heating, air conditioning, as well as agriculture and industry;
- innovation, energy efficiency, reliability, durability, resistance to corrosion and wear: the product consists of stainless galvanized parts; bearings serve to 100 thousand h;
- hydraulic balance, minimal leakage and a wide range of operating temperatures: from –25 (–40) to +140 (+220) ° С;
- one-man service (using a crane): motor, clutch, support bracket are easily dismantled;
- a huge range and structural diversity: various engine options (IE1 / IE2, IE3), materials (cast iron, bronze, brass, stainless steel) and mechanical seals (standard BAQE / types B, A, D) are available;
- the possibility of reducing vibrations and noise with special inserts and supports for pipes;
- cutting of the impeller for specific operational parameters is allowed;
- free warranty service from 2 to 5 years.
Minuses:
- the need for a specially equipped room: dry, ventilated, with a positive temperature, without an explosive atmosphere;
- viscous, aggressive and flammable substances must not be pumped;
- high prices: 62.9-2070.7 thousand rubles.
Wilo-CronoNorm-NL - cantilever pump for long life
Single stage with axial suction unit on the support frame. Consists of a cantilever pump with a radial pressure nozzle and an electric motor with thermal sensors. It is equipped with a flanged bearing unit with a bracket, a coupling with a casing and a terminal box with control buttons.
DN1 discharge port from 32 to 300 mm; DN2 impeller from 125 to 550 mm; power from 0.37 to 315 kW. It is mounted horizontally on a concrete foundation: it is fastened with anchor bolts. Turns on "under the bay" from the launch box.
Pros:
- practicality: utility, industrial and agricultural purpose - for irrigation and water supply, heating, cooling, air conditioning;
- high energy efficiency, reliability, corrosion resistance: production materials - stainless steel, cast iron, bronze, EPDM / carborundum / graphite;
- variety of delivery: with free shaft end; additionally with clutch and frame; in addition with an electric motor;
- optional equipment: interchangeable coupling, bronze impeller, motor with higher efficiency;
- individual advantages: proprietary shaft protection, mechanical seal, large bearing with regular lubrication;
- significant temperature limits of the pumped medium: from –20 to +120 ° С;
- long model line, simple maintenance, wide service network;
- Warranty for 2 years.
Minuses:
- only for clean / slightly polluted water without abrasive inclusions;
- installation - difficult: it is forbidden in an explosive room;
- expensive: 110.6-2724.7 thousand rubles.
DAB KDN - console pump for everyday use
Normal suction unit with centrifugal cantilever pump, 2-, 4-pole electric motor and steel frame. It has a ball bearing unit, clutch, starting box. Leaks are prevented by stuffing box or face seal.
Head from 5.5 to 100 m; delivery from 1 to 500 m3 / h; power from 0.37 to 110 kW. It is installed using a crane on the foundation, which is 1.5 times more powerful than an aggregate. It is controlled mechanically: it is turned on and off with the buttons located on the terminal box.
Pros:
- Popular uses: for water supply, circulation, pressure boosting;
- strength, durability, resistance to wear and corrosion: basic materials: cast iron, stainless steel, powder-coated sheet steel;
- availability of the product order in a special version: for transporting a liquid with characteristics other than that of water;
- various additional compaction options: in combinations of silicon carbide, EPDM, graphite, Viton;
- standard operating pressure: maximum 10, 16 bar;
- wide temperature range of the pumped liquid: from –10 to +140 ° С;
- self-contained model range: you can always choose the right pump;
- 2 years warranty period.
Minuses:
- for water only: non-viscous, non-aggressive, chemically neutral, without solid inclusions;
- considerable price: 51.0-836.4 thousand rubles;
- Installation is done exclusively by professionals.
K - console pump for budget use
Surface centrifugal unit with three support units: cantilever pump (with impeller, inlet / discharge nozzles), housing with bearings and asynchronous electric motor. The basis for the whole structure is a rectangular steel frame.
Head from 16 to 80 m; delivery from 8 to 400 m3 / h; power from 1.5 to 90 kW. It is installed in a special room: it is mounted horizontally on a foundation with subsequent alignment. Run - only in the state filled with water. Produced by many factories of Russia.
Pros:
- strength, reliability, durability, corrosion resistance of working parts;
- practicality: lower and upper channels are provided for draining water and removing air;
- possibility of a choice of stuffing packing / face seal (permissible fluid temperature - up to +85 / +105 ° С);
- a wide range of models: the choice is made according to the desired parameters and pump operation schedule;
- ease of operation and maintenance: the availability of lowering vibrations with special inserts;
- maintainability: due to the simple dismantling of structural elements;
- relatively low price (5.8 - several hundred thousand rubles), standard one-year warranty;
- wide application and high popularity: the most popular models are K 50-32-125, K 65-50-160, K 80-50-200, K 100-65-200.
Minuses:
- big sizes (in comparison with console and monoblock models);
- high demands on the characteristics of water or a liquid similar in composition: pH from 6.5 to 8.5; particle content Ø0.2 mm to 0.1% by mass;
- not for seawater and flammable liquids.
The best cantilever monoblock pumps for water
Grundfos NB - console-monoblock pump with great features
Single-stage centrifugal unit with a console-monoblock pump (with tangential or radial branch) and a 2-, 4-, 6-pole motor with a fan. Equipped with horizontal and vertical nozzles, a short coupler and brackets in different combinations.
Head from 4.9 to 160 m; flow rate from 10 to 1000 m3 / h; power from 0.25 to 200 kW.It is installed on a massive concrete foundation, is connected to a single-phase / three-phase network, and is turned on after pouring with water. Operated by buttons on the terminal box.
Pros:
- Multipurpose purpose: at CHP, in apartment buildings, at factories, in agriculture - for irrigation and water supply systems, heating, air conditioning;
- durability, reliability, resistance to wear and corrosion: stainless materials are used (some of them are electroplated);
- optimization of production areas: due to its small size (compared to the NK series models);
- wide range: available to choose the unit for domestic use, and that for industrial use;
- the possibility of transporting a liquid with a temperature of –25 to +140 ° С (when made on request from –40 to +180 ° С);
- different base options: with paws under the pump, with brackets under the engine, with supports under two knots, with a common frame;
- possibility of service by 1 person: it is available to remove the motor with the impeller without dismantling the pump housing and disconnecting the pipes;
- warranty for a period of 24 to 60 months.
Minuses:
- slightly increased noise level (from 40 to 75 dB): available to lower special inserts;
- do not pump liquid and flammable liquids, install them in explosive areas;
- high prices: 60.4-1660.5 thousand rubles.
Wilo CronoBloc BL - console-monoblock pump with high efficiency
Superficial centrifugal unit in a compact design. Consists of a console-monoblock pump, asynchronous electric motor and starting box. In the design: horizontal inlet pipe, radial outlet, motor support legs and the connecting module.
DN1 discharge pipe from 32 to 150 mm; DN2 impeller from 110 to 400 mm; head from 5 to 105 m; flow rate from 15 to 380 m3 / h; power from 0.37 to 90 kW. It is installed on the foundation, it is poured before switching on, switched on / off with buttons.
Pros:
- An extensive selection of models: it is available to choose an option for both a private house and an apartment building, an irrigation system, a cooling complex;
- durability, reliability, corrosion resistance: due to stainless materials and KTL coating;
- compactness: there is no need for a large room, as a result, money is indirectly saved;
- individual features: condensate holes in the motor and lantern; sliding seals of the end gaps;
- wide operating range of water / glycol mixture: from –20 to +140 ° С;
- simplified installation (performed by specialists), relatively simple maintenance;
- maintainability: units are equipped with highly efficient, but standard engines, so it is easy and simple to pick up a replacement;
- 2 year warranty period.
Minuses:
- only for clean or slightly polluted water: inclusions with abrasive particles are not allowed;
- inconvenience of dismantling the motor (during repair): the pump has no support brackets;
- considerable price: 83.7-1202.0 thousand rubles.
Calpeda NM - console-monoblock pump with a big guarantee
Centrifugal single-stage unit with a console-monoblock pump and an asynchronous 2-pole electric motor. Equipped with a starting box, fan, support brackets, suction horizontal and pressure radial nozzles.
The device with a power of 30 kW has a thrust bearing, the product with P <30 kW has a common shaft. Head up to 95 m; delivery - up to 300 m3 / h, power - up to 75 kW. It is installed on the foundation, fastened with anchor bolts, filled with water before starting, switched on with a button.
Pros:
- wide range of applications: civil engineering, industry, utilities and agriculture, including water supply, air conditioning, heating, fire fighting;
- huge choice: models of different rulers are offered - with threaded and flange sockets;
- modifications with 2 impellers that balance axial force;
- continuous mode of operation: it is provided by structural solutions, reliability, durability, resistance to mechanical and atmospheric influences;
- availability of special pumping: sea water, liquids with sand, corrosive media, petroleum products, alkalis, and with temperatures below –10 and above +90 ° С;
- no need for maintenance: due to mechanical shaft seal;
- each product is tested before it goes on sale;
- price availability of many models, a large warranty period (5 years).
Minuses:
- strict water requirements: solids content up to 0.2% by weight;
- installation in a separate room and only by specially trained people;
- large price range: from 8.0 to 916.1 thousand rubles.
KM - console-monoblock pump with a low price
Single stage surface unit with 1-way water supply. It consists of a console-monoblock pump (with horizontal inlet and vertical discharge nozzles) and an asynchronous electric motor (with an impeller on an extended shaft).
Two nodes have a common flange connection and their own floor supports. Delivery from 10 to 200 m3 / h, head from 16.0 to 80.0 m; power from 2.2 to 45.0 kW. It is installed on the foundation (horizontally), it works “under the bay”. Produced by many factories of the CIS countries, optionally offered without a motor.
Pros:
- compactness (as opposed to K series models) - space optimization is available;
- durability, reliability and corrosion resistance: gray cast iron, stainless steel and powder coating are used;
- variety of model range: products differ in size, design features, technical parameters;
- availability of changes in performance: using the external trimming of the impeller;
- the possibility of pumping water with a high temperature (up to +140 ° C): when using an end (not stuffing) seal;
- large overhaul life: an average of 20 thousand hours;
- democratic price (4.5 - 98.3 thousand rubles), a year of the warranty period;
- competitiveness: due to a balanced ratio of cost, quality and efficiency;
- demand: popular models - KM 50-32-125, KM 65-50-160, KM 80-50-200, KM 100-80-160, KM 100-65-200.
Minuses:
- increased noise level, the possibility of flooding - the units should be installed in specially adapted premises;
- not for installation in fire and explosion hazard zones;
- additional parameters that are taken into account when choosing: the allowable margin for cavitation is 3.5 ... 4.0; pH - 6 ... 9; solid 0.2 mm inclusions - no more than 1/1000 by weight.
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