Article
Pumps for clean water - blue series
Objavljeno Aug 12, 2025

Potable water pumps or pumps for clean water represents our blue series.

Our pumps from blue series demonstrates robust long lifetime reliable operations. Their advanced constructions enables extended number of starts and no need for maintenance.

Their characeristisc are most suitable:

  • In pumping arrangement for clean and cold water.

  • For drinking water distribution.

  • For home usage (house water supply, garden watering, car wash).

  • In pumping arrangements in wells or swimming pools.

  • In industry for different purposes in water distribution arrangements.

  • As boosters in local pipe line with not enough pressure for servicing facilities.

Depends of your needs you can select betweem:

  • MULTI-STAGE CENTRIFUGAL PUMPS

  • HORIZONTAL MULTI STAGE PUMPS

  • MONOBLOCK CENTRIGUFAL PUMPS - STANDARD D I N

  • VERTICAL MULTI-STAGE PUMPS and

  • VERTICAL MULTI-STAGE STAINLESS STEEL PUMPS

For the pumps from blue series are available following custom-made configuration:

  • Pumps equipped with motors for various voltage levels.

  • Pumps equipped with 60 Hz motors.

  • 3-phase motors reaching the power to 2,2 kW are designed for direct start, motors with power above 2,2 kW featured soft start.

  • Motors fitted with thermal probes in the winding.

  • Pumps equipped with silent non-return valves.

  • Control units with thermal motor protection and liquid level detection.

For all pumps spare parts are available as well as service.

MULTI-STAGE CENTRIFUGAL PUMPS

Available types of Multi stage centrifugal pumps are TVC and EVC, self-priming pumps.

TVC, EVC, self-priming pumps. Source: ELKO ELEKTROKOVINA

EVC and TVC pumps are used for pumping clean water with up to 30°C. They are useful for supplying buildings with low water consumption, for watering gardens, washing cars. Due to their self-priming properties, they are useful in holiday homes and other facilities where pump starts are not common. Also, due to the self-priming, the pump is not sensitive to the appearance of air bubbles in the pipes.

The pumps are built in a monoblock version with a joint shaft of the electric motor and the pumping part. They are manufactured as single-stage self-priming pumps with a pump part made of gray cast iron and bronze castings and with a characteristic star impeller with flat blades. This design feature allows the pump to operate when air cushions appear in the suction pipe. However, the pump cannot independently fill an empty suction pipe which must be equipped with a suction hopper with a non-return valve and filled with water at the first start-up. The suction and discharge connections are equipped with internal threaded flanges. The drive electric motors have windings with F class insulation and correspond to the IP54 degree of protection. Single-phase electric motors have built-in thermal protection elements which are switched off when overloaded and switched on again after cooling.

Main purposes of use:

  • drinking water management

  • single-family house supply

  • supply of facilities with low water consumption

  • other as gardens watering, car wash, wells, plumbing systems, watering and irrigation systems, holiday homes and other facilities where pump starts are not common.

Technical characteristics:

  • Flow: up to 40 l/min

  • Lifting pumping height: up to 50m

  • Motor power: 1.0 kW

  • Power supply: 1-phase (230V) or 3-phase (400V)

  • Medium temperature: from 0°C to + 30°C

  • Ambient temperature: from 0°C to + 40°C

  • Suction height: up to 7m

  • Maximum permissible operating pressure of the housing: 10bar

  • Weight: 14.7 – 17 kg

    TVC, EVC, Q/H, diagram. Source: ELKO ELEKTROKOVINA
    TVC, EVC, drawing. Source: ELKO ELEKTROKOVINA

    HORIZONTAL MULTI STAGE PUMPS
    Horizontal multi stage pumps ara available as smaller VC(E) type 53 and 55 and horizontal VC types

Small VC(E) multistage horizontal pump. Source: ELKO ELEKTROKOVINA

Smaller VC (E) horizontal multistage water pumps type 53 and 55 are designed to pump clean cold water. Multi-stage pumps with one or three-phase electric motors are robust, with a long service life, designed to pump clean water up to a temperature of 40°C. They can also operate connected to the local water supply, in which the pressure is too low to supply the facilities. The technologically advanced design allows a large number of pump starts and requires no maintenance. We provide spare parts and service for all our products, and according to the customer’s wishes, we can also manufacture pumps and electric motors tailored to the customer (special versions) – pumps with motors for different voltages and pumps with motors for a frequency of 60 Hz.

Horizontal multistage pumps are made in a monoblock version with a common shaft of the electric motor and the pumping part. The drive electric motors are cooled with IP 54 protection degree and insulation class F. They have radial closed bearings. All single-phase electric motors are equipped with thermal protection switches. The design of the pump with axial suction connection and radial pressure connection with flange enables quick and easy installation and connection of steel or plastic pipes.

Main pourposes of use:

  • drinking water management

  • single-family house supply

  • agriculture

  • industry

  • watering and irrigation systems

  • other as gardens watering, car wash, wells, plumbing system, swiming pools

Technical characteristics:

  • Flow: up to 90 l/min

  • Lifting pumping height: up to 55m

  • Motor power: 1 ÷ 1.5 kW

  • Power supply: 1-phase (230V) or 3-phase (400V)

  • Medium temperature: from 0°C to + 40°C

  • Ambient temperature: from 0°C to + 40°C

  • Suction height: up to 7m

  • Maximum permissible operating pressure of the housing: 10bar

  • Weight: 20.5 – 29 kg

    Small VC(E), Q /H, diagram. Source: ELKO ELEKTROKOVINA

Small VC(E), drawing. Source: ELKO ELEKTROKOVINA

Horizontal VC multistage pump. Source: ELKO ELEKTROKOVINA

Horizontal VC multistage pumps are designed to pump clean cold or hot water with a temperature of up to 130°C. They are useful for supplying residential houses and settlements with water or for pumping process water. They are installed in irrigation systems, hydrophore devices, hydrant networks or hot water systems. In technological processes, they are useful for pumping all chemically neutral liquids that do not contain abrasive particles with a viscosity similar to the viscosity of water.

Horizontal multistage pumps are made in a monoblock version with a common shaft of the electric motor and the pumping part (the pumping part with castings made of gray cast iron and brass). Each stage of the pumping part consists of an impeller, a guide and a stage housing. The housings are sealed with seals. Pump shafts (VC…S) are sealed with mechanical seals. The pressure connections of the pumps are equipped with an internal thread. The suction connections of the pumps are made without internal flanges with an internal thread in the pump cover. The drive motors are air-cooled three-phase motors with IP54 degree of protection and insulation class F. The electric motors have built-in radial closed bearings. Motors with power up to 2.2kW are intended for direct start, and motors with power up to 3kW and more are designed for soft (y/Δ) start.

Main pourposes of use:

  • drinking water management

  • single-family house supply

  • supply of facilities with hot and cold water

  • agriculture

  • industry

  • watering and irrigation systems

  • for pumping chemically neutral liquids

  • plumbing systems

  • other as gardens watering, car wash, wells, plumbing system, swiming pools

    Technical characteristics:

  • Flow: from 70 to 350 l/min

  • Lifting pumping height: up to 78m

  • Motor power: 1.5 ÷ 4kW

  • Power supply: 3-phase (400V)

  • Medium temperature: from 0°C to + 130°C

  • Environment temperature: from 0°C to + 40°C

  • Suction height: up to 7m

  • Maximum permissible operating pressure of the housing: 15bar

  • Weight: 36 – 60kg

Horizontal VC multistage pumps Q/H diagrams. Source: ELKO ELEKTROKOVINA

Horizontal VC multistage pumps drawing. Source: ELKO ELEKTROKOVINA

MONOBLOCK CENTRIGUFAL PUMPS - STANDARD D I N

Monoblock centrigual pump - D I N. Source: ELKO ELEKTROKOVINA

Standard DIN pumps are designed to pump water that does not contain solid particles. They can be used to pump cold or hot water up to 140°C. They have a versatile use in industry and agriculture, especially for irrigation. They can be used as circulating pumps for central heating or cooling installations and are also intended for swimming pool equipment. In technological processes, they are useful for pumping all chemically neutral liquids that do not contain abrasive particles with a viscosity similar to the viscosity of water.

All pumps are single stage with a spiral housing. They are made in a monoblock version. A feature of standard DIN pumps is the joint shaft of the electric motor and the pump part. The shafts are made of stainless steel, and the pump parts are made of quality gray cast iron. The sealing of the pumps at the shafts is carried out with seals with sliding rings which allow a permanent pressure of 10 bar in the pump housing. The electric motors all come with three-phase design. They are equipped with legs that serve to attach the unit to the base. The mechanical protection of the electric motor is IP 54 according to IEC 34-5. This is protection against accidental contact, settling of dust particles in the engine and against splashing water from all directions. The design of the pumps meets the requirements of DIN 24255 which prescribes the connection dimensions and characteristics of the pumps. This means that it is possible to replace any equivalent pump built to a given standard with a standardized pump, without the need to rearrange the installation during replacement. The type designation of the pump indicates the size of the pressure connection and the diameter of the impeller. The spiral housing has three G¼ connections which are intended for the connection of the manometer, for venting or filling the pump with water and for emptying the pump. All G¼ connections are closed with threaded plugs.

Main purposes of use:

  • drinking water management

  • single-family houses supply

  • supply of facilities with hot and cold water

  • for irrigation systems

  • agriculture

  • industrial purposes

  • pumping chemically neutral liquids

  • central heating circulators

  • cooling systems

  • others such as car wash, swiming pools, plumbing systems, watering and irrigation systems.

    Technical characteristics:

  • Flow: from 180 to 8000 l/min

  • Lifting pumping height: up to 76m

  • Motor power: 1.1 ÷ 22kW

  • Power supply: 3-phase (400V)

  • Medium temperature: from 0°C to + 140°C

  • Environment temperature: from 0°C to + 40°C

  • Suction height: up to 7m

  • Maximum permissible operating pressure of the housing: 10bar

  • Weight: 41 – 280kg

    Monoblock centrifugal pumps - D I N, Q/H diagram. Source: ELKO ELEKTROKOVINA

    Monoblock centrifugal pumps - D I N, drawing. Source: ELKO ELEKTROKVOINA

    VCV VERTICAL MULTI-STAGE PUMPS

    VCV Vertical multistage pump. Source: ELKO ELEKTROKOVINA

    VCV Vertical multistage pumps are designed to pump clean cold or hot water with a temperature of up to 130°C. They are useful for supplying residential houses and settlements with water or for pumping process water. They are installed in irrigation systems, hydrophore devices, hydrant networks or hot water systems. In technological processes, they are useful for pumping all chemically neutral liquids that do not contain abrasive particles with a viscosity similar to the viscosity of water.

    Vertical multistage pumps are made in a monoblock version with a joint shaft of the electric motor and the pumping part – the pumping part with castings made of gray cast iron and brass. Each stage of the pumping part consists of an impeller, a guide and a stage housing. The housings are sealed with seals. The pump shafts are sealed with mechanical seals. The pressure and suction connections of the pumps are equipped with internal threaded flanges. The drive motors are air-cooled three-phase motors with IP54 protection degree and insulation class F. Only VCVE 50/8S pumps are manufactured with single-phase motors with integrated starting and drive capacitors. Electric motors have built-in radial closed bearings. Motors with power up to 2.2kW are intended for direct start, and motors with power up to 3kW and more are designed for soft (y/Δ) start.

    Main purposes of use:

  • drinking water management

  • single-family houses supply

  • supply of facilities with hot and cold water

  • agriculture

  • industrial purposes

  • pumping chemically neutral liquids

  • other, car wash, swiming pools,cplumbing systems, watering and irrigation systems.

    Technical characteristics:

  • Flow: from 30 to 350 l/min

  • Lifting pumping height: up to 190m

  • Engine power: 0.45 ÷ 11kW

  • Power supply: 1-phase (230V) or 3-phase (400V)

  • Medium temperature: from 0°C to + 130°C

  • Environment temperature: from 0°C to + 40°C

  • Suction height: up to 7m

  • Maximum operating pressure of the housing: 20bar

  • Weight: 21 – 132kg

    VCV Vertical multistage pumps Q/H diagrams. Source: ELKO ELEKTROKOVINA

    VCV Vertical multistage pump, drawings. Source: ELKO ELEKTROKOVINA

    VCV-I VERTICAL MULTI-STAGE STAINLESS STEEL PUMPS

VCV-I Vertical multistage stainless steel pump. Source: ELKO ELEKTROKOVINA

Vertical multistage VCV-I pumps are designed to pump clean cold or hot water with a temperature of up to 130°C. They are useful for supplying residential houses and settlements with water or for pumping process water. They are installed in irrigation systems, hydrophore devices, hydrant networks or hot water systems. In technological processes, they are useful for pumping all chemically neutral liquids that do not contain abrasive particles with a viscosity similar to the viscosity of water.

Vertical multistage VCV-I pumps are made in a monoblock version with a joint shaft of the electric motor and the pumping part, wherein the pumping part and all parts in contact with the medium are made of stainless steel. Each stage of the pumping part consists of an impeller, a guide and a stage housing. The housings are sealed with seals. The pump shafts are sealed with mechanical seals. The pressure and suction connections of the pumps are equipped with internal threaded flanges. The drive motors are air-cooled three-phase motors with IP54 degree of protection and insulation class F. The electric motors have built-in radial closed bearings. Motors with power up to 2.2kW are intended for direct start, and motors with power up to 3kW and more are designed for soft (y/Δ) start.

Main purpose of use:

  • drinking water management

  • single-family houses supply

  • supply of facilities with hot and cold water

  • for irrigation systems

  • agriculture

  • industrial purposes

  • pumping chemically neutral liquids

  • other, car wash, swiming pools, plumbing systems, watering and irrigation systems.

Technical characteristics:

  • Flow: from 30 to 350 l/min

  • Lifting pumping height: up to 170m

  • Motor power: 0.75 ÷ 6.7 kW

  • Power supply: 3-phase (400V)

  • Medium temperature: from 0°C to + 130°C

  • Environment temperature: from 0°C to + 40°C

  • Suction height: up to 7m

  • Maximum operating pressure of the housing: 20bar

  • Weight: 25 – 112kg

On demand:

  • pumps could be fitted with motors for different voltages

  • pumps could be fitted with motors for a frequency of 60Hz

  • pumps could be fitted with motors with integrated thermal sensors in the winding

  • pumps could be equipped with non-return valves with silent operation

  • control box with built-in motor protection and fluid level control could be delivered.

VCV-I Vertical multistage stainless steel pumps, Q/H diagrams. Source: ELKO ELEKTROKOVINA

VCV-I Vertical multistage stainless steel pump drawing A. Source: ELKO ELEKTROKOVINA

VCV-I Vertical multistage stainless steel pump drawing B. Source: ELKO ELEKTROKOVINA

Contact us and request catalogue with detailed description and technical characteristics and current price lists.

We ara available via E-mail on: info@s-ei.eu

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