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  • Offer Profile
  • The family run enterprise ZUWA-Zumpe GmbH has been manufacturing high quality pumps and innovative pump systems for more than 70 years. The ample experience in designing and producing high end products enables us to offer a wide range of different devices.

    The entire product range consisting of pumps, fuelling stations, plant protection systems as well as charging and flushing stations is in high demand all over the world. ZUWA is working in accordance with the ISO 9001:2015 quality management system, regularly controlled by TÜV SÜD. Process safety and constant quality is guaranteed.

    The close contact with our customers provides us with proposals and impulses to improve and further develop our products. in house production and shop floor enable us to meet customer specific requirements, manufacture custom made products and complete repair jobs. Competent contact persons and lean management make for quick and reliable service.

Product Portfolio
  • IMPELLER PUMPS

  • DRY SELF-PRIMING UNIVERSAL PUMP FOR MANY LIQUIDS

    Impeller pumps by ZUWA are especially easy to maintain and cheap to run. Thanks to the flexible impeller the pumps are capable to move solid content or convey highly viscous fluids.

    The running wheels (impellers) in our impeller pumps are available in different, always flexible materials to meet the requirements of many fluids. The impellers are not arranged centered in the elliptical housing. Due to the rotation of the impeller and therefore the bending of the impeller's blades a vacuum is created which sucks in the liquid. Because our impeller pumps are self-lubricating, only a rather short dry run is possible. After utilisation a longer dry-run is possible, but not recommendable.

    ZUWA impeller pumps are available in several sizes with several drives and are made drom stainless steel, aluminum or plastic. We provide impellers made from NBR, EPDM, CR, FKM, FPM and TPU.

    Our impeller pumps can be used with different drives: electric motors, air motors, belt drive, hydraulic motors, with a power drill or a cordless drill with an adapter.

    Where impeller Pumps are being used

    • electroplating
    • biotechnology
    • heating and sanitary
    • workshop, machine shop
    • agriculture and horticulture
    • food and beverage industry
    • boating, marine engineering
    • water and sewerage treatment
    • manufacturing, industrial plants and construction
    • chemical, pharmaceutical and cosmetics industry
      • DRY SELF PRIMING FROM A DEPTH OF THREE METERS

      • What makes impeller pumps outstanding – they do not need to be fi lled prior to operation. Impeller pumps are dry self priming from a depth of three meters. Pre-filling is required for a suction depth of three metres and more. The suction depth is max. 7 metres.

        The flexible impeller turns within an eccentrically formed casing creating a suction via the flexing of the impeller blades, which draws the fluid into the pump casing. The medium itself acts as a lubricant between the blades and the casing, therefore minimizing friction and allowing smooth fluid transfer. In order to avoid possible damages to the pump it is recommended to install dry run protection to each flexible impeller pump by ZUWA.

          • 1. SUCTION

          • On the suction side the blades begin to straighten. The chamber space between each blades enlarges and creates a vacuum pulling the fluid into the pump.
          • 2. TRANSPORT

          • With the turning of the impeller the fluid is positively displaced from the inlet to the outlet. Small particles are also able to be pumped freely through the chambers.
          • 3. PRESSURE

          • On the pressure side the blades of the impeller begin to flex causing the chambers to shrink, therefore forcing the fluid in a constant flow out of the pump.
        • PORTFOLIO

            • IMPELLER PUMP UNISTAR

            • A multi-purpose pump designed for transferring clean or contaminated liquids. Not suitable for handling abrasive or corrosive fluids.

              DRY SELF-PRIMING UNIVERSAL PUMP FOR MANY LIQUIDS

              ZUWA-Impeller pumps are easy and inexpensive to maintain. They are insensitive to solid content in the fluid due to the flexible impellers and can even promote high-viscosity fluids.

              The pump series UNISTAR is made of aluminum and suitable for all non-abrasive and non-corrosive media. Below for liquids like:

              • water
              • Diesel and biodiesel
              • vegetable oil
              • Antifreeze
              • coolants

              The maximum delivery rate is between 15 and 90 liters / min.

               

            • IMPELLER PUMP COMBISTAR

            • This pump is particularly suitable for all fluids containing abrasives. It is an economic alternative to the NIROSTAR series for transferring abrasive or slightly corrosive fluids.

              DRY SELF-PRIMING UNIVERSAL PUMPS FOR A WIDE VARIETY OF LIQUIDS.

              Our COMBISTAR consists of a material mix. All wetted parts are made of stainless steel. The pump body is made of aluminum. Therefore suitable for all liquids which also contain abrasives.

              This type of pump offers a low-cost alternative to the NIROSTAR series to promote abrasive or slightly corrosive media such as contaminated fluids and debris.

               

            • IMPELLER PUMP NIROSTAR

            • A high quality stainless steel pump with numerous applications in industrial plants and production facilities, the appropriate choice for transferring corrosive fluids.

              DRY SELF-PRIMING UNIVERSAL PUMPS FOR A WIDE VARIETY OF LIQUIDS.

              As a manufacturer of impeller pumps, we pay special attention to quality. They are particularly easy to maintain and inexpensive to maintain. They are due to the flexible wheels insensitive to solids in the medium and can promote even highly viscous liquids.

               

            • IMPELLER PUMP ACOSTAR

            • The synthetic impeller pump is for a wide variety of applications in the chemical sector. Perfect for fluids with various viscosities plus agressive acids, bases and solvents.

              FOR A WIDE VARIETY OF APPLICATIONS IN THE CHEMICAL SECTOR

              Perfect for fluids with various viscosities plus agressive acids, bases and solvents.

              Using top quality seals and Impellers made of VITON provide excellent operation safety. Various motors (220, 400 V; 1.400, 2.800 U/min; 50, 60 Hz). “Star knobs” make for quick and simple replacement of the Impeller.

              The Ceramic sleeve to protect the motor shaft comes as standard equipment. Using a frequency converter permits to adjust the pump speed or rotation direction.

          • NIROSTAR 2000-C PLUS WITH MOTOR, DIRECTLY FLANG

          • More Power, Greater Adaptability, Less Downtime

            The plus model NIROSTAR 2000-C flexible impeller pump is particularly distinguished by the fact that the pump can be opened without any tools.  Not only does this shorten cleaning time for the pump, but also simplifies changing out the impeller.

            The new design offers the possibility to rotate the pump head in 45° increments, thereby allowing easy adaptation for difficult installation requirements.

            Capacity range has been increased, as the plus model NIROSTAR 2000-C achieves a delivery rate of 120 l/min over the standard version’s 90 l min.

            The ZUWA NIROSTAR 2000-C plus is available with 230 V and 400V drive.

            Pump with Frequency Converter

            Upon request the NIROSTAR 2000-C plus can be equipped with a frequency converter. The frequency converter or also known as frequency inverter enables the adjustability of the rpm. Therefore a especially efficient operation is possible.

            The NIROSTAR 2000-C plus is also available with dry run protection.

              • NIROSTAR 2000-C plus with motor, directly flanged

              • Features:

                • with clip lock and locking screw
                • Pump housing made of stainless steel 1.4404
                • Direction of rotation left / right
                • Media temperature up to 90 ° C
                • Rotate pump head in 45 ° increments

                The pump is suitable for continuous operation.

                 

              • NIROSTAR 2000-C plus with motor, directly flanged

              • Connections:

                In addition to metric BSP external thread on request also available with milk thread according to DIN 11851, Dutch connector, Tri-clamp connection, SMS thread, BSM thread and various other connection options.

              • NIROSTAR 2000-C plus with motor, directly flanged

              • Fluids:

                • fuel oil, diesel
                • food, drinks
                • mash
                • chemicals
                • acids
                • lye
                • fertilizers liquid
                • colors, glue
                • vegetable oil
                • surface treating
                • cooling lubricants
                • extinguishing foam
                • concrete additive
            • NIROSTAR ATEX: Mobile impeller pump with ATEX certification

            • The NIROSTAR ATEX is the first flexible impeller pump in the world with ATEX approval. The pump unit and electronic controls are mounted together on a sturdy trolley with large solid rubber tires (electrically conductive). The trolley includes a height-adjustable telescopic handle to ensure easy mobility in and around the worksite. Due to the compact design of the NIROSTAR ATEX, it is transportable in most passenger cars.

              The NIROSTAR ATEX brings all the advantages of a high quality flexible impeller pump including dry self-priming, suitability for abrasive and corrosive liquids, and pulsation-free flow.

              This flexible impeller pump meets the strict requirements of Category 2G of Directive 2014/34/EU. It is designed to convey flammable liquids per Gas Group IIB and Temperature class T2. The unit can be used in areas where an explosive atmosphere of gas and vapor per Gas Group IIB and Temperature Class T2 can occu

              The ATEX-NIROSTAR series has a type examination by a notified body in accordance with Annex III of Directive 2014/34/EU, including the essential health and safety requirements in accordance with Annex II of Directive 2014/34/EU as a category 2 non-electrical device.

              Type Examination Certificate No.: BVS 18 ATEX H 004 X

              EQUIPMENT LABEL AND CLARIFICATION:

              EX II2/2G EX IIB T2 GB/GB+5°C ≤ TA ≤ +40°C

                • HVAC FILLING AND FLUSHING PUMPS

                • On account of their robust construction ZUWA filling and flushing stations for solar collectors, heat pumps and panel heatings are suitable for on site application. The Cleaning Mobile Center is also suitable for cooling lubricants in CNC-machining centers and heat transfer fluids in heat exchangers. The fully developed devices have been proved and tested for more than a decade in heating installation. For filling, flushing and venting we recommend our Flush Pro Mobile Center. We like emphasize the gentle cleaning when it comes to flushing a heating system. Instead of using a pulsating air-water-mix which strips larger particles away which may lead to blockage we suggest to use our device with soft water or a similar fluid to bind particles and collect them in the filter bag.

                  The Cleaning Mobile Center is also suitable for cooling lubricants in CNC-machining centers and heat transfer fluids in heat exchangers. The fully developed devices have been proved and tested for more than a decade in heating installation. For filling, flushing and venting we recommend our Flush Pro Mobile Center. We like emphasize the gentle cleaning when it comes to flushing a heating system. Instead of using a pulsating air-water-mix which strips larger particles away which may lead to blockage we suggest to use our device with soft water or a similar fluid to bind particles and collect them in the filter bag.

                    • SOLARCHECK MOBILCENTER

                    • Flushing, filling with heat transfer fluid and venting thermal solar plants with one unit in one operation.

                      FLUSHING AND FILLING OF SOLAR SYSTEMS

                      Flushing, venting and filling heat transfer medium into solar systems in one process. The latest member of the ZUWA filling stations family: small, easy to transport, fits upright into the trunk of a Volkswagen Golf/ Rabbit!

                    • FLUSH PRO MOBILE CENTER

                    • Filling and flushing unit for all kinds of heating installations with optional accessory for heat pumps.

                      Our FLUSH PRO Mobile Center is a handy filling system for professional use. Besides filling large solar plants with several collectors, earth collectors of geothermal energy plants, heating systems, especially floor heating or central heating, flushing and venting is also possible.

                    • DESCAL MOBILE CENTER

                    • Decalcification for professional and demanding applications using descaler.

                      DECALCIFY WARM WATER TANKS AND HEAT EXCHANGER

                      The DESCAL Mobile Center is a decalcifying unit for professional use to flush warm water tanks and heat exchangers with descaler.

                      In several industrial processes diverse fluids like process water, glycolic coolant, cooling lubricants and other fluids are used.
                      + increases running time and process reliability
                       - reduces costs and downtimes

                      FUNCTION

                      The descaler circulates between heat transfers and the DESCAL MC. Thanks to that limescale comes loose and are collected in the container of the unit. This procedure is continued until the fluid is free of lime residuals, which is visible thanks to the transparent hoses and at the filter cup.

                    • CLEANING MOBILCENTER

                    • Perfectly suitable for filtration and flushing within industrial application, e.g. for milling and drilling machines.

                      In industrial plants and workshops many different fluids are applied. The Cleaning Mobile Center is designed to suck up liquids like process water, glycolic coolant, cooling lubricants and other special fluids.

                      cleaning and rehabitating machines in industrial application

                      Due to the natural aging process of machines or pollution and contamination with dirt processes may be influenced in a negative manner. Debris, silting and corrosion are a known threat and lead in the worst case to downtime. To avoid that, filtering the fluids is essential, as well as flushing, cleaning and decalcifying the relevant units.

                      application:

                      • CNC-machines
                      • grinding machines
                      • drilling machines
                      • milling machines
                      • saws
                    • WATERING UNIT

                    • for watering and fertilizing larger areas, battery powered

                      WATERING UNIT F-120 - WITH 120 L CONTAINER

                      Dry self priming impeller pump with a robust cart for parks or cemetaries. The pump is battery powered (battery is not included in the package) and thanks to that especially quiet. The unit is equipped with a ZUMATIC control which automatically switches the pump on when opening the watering pipe and off when closing it.

                      • max. flow rate: 30 (optional 60) l/min
                      • 12 or 24 Volt drive with at least 80 A/h