ZUWA Impeller Pumps Contents Declaration of conformity ...................4 Introduction ......................5 Further applicable documents ................5 Legend ......................5 General safety instructions................6 Construction and functionality................6 Pump types ....................6 Designs ......................6 Technical Data ....................7 Type plate ......................8 Impeller materials...................9 Transportation and unpacking ................9 Installation and connection ................9 Assembly .......................9...
2000/14/EC (Noise Emissions for Outdoor Equipment) The manufacturer, ZUWA - Zumpe GmbH, 83410 Laufen, Germany, hereby declares that the pump models listed below for the decanting of non-flammable or explosive liquids comply with the provisions of the above-mentioned CE Directives.
ZUWA Impeller Pumps 2.3 General safety instructions The manufacturer shall not be held liable for damage resulting from non- adherence to the operating instructions. Store these instructions in such a way that they are accessible at all times for pump operating personnel. Urge employees to read and follow these instructions.
ZUWA Impeller Pumps 3.4 Type plate Type plate, example: Drive: without motor, bare shaft end double bearing with V- belt drive hydraulic drive DC 12 V DC 24 V DC 48 V Impeller Sleeve electr. motor 230 V digit) digit)
ZUWA Impeller Pumps 3.5 Impeller materials Impeller pumps are equipped with NBR impellers as standard. Material designation Suitable for: Properties Diesel, mineral oils and High impact elasticity and greases good mechanical strength Acrylonitrile butadiene rubber Good for applications (Perbunan®, Buna-N®)
ZUWA Impeller Pumps The pump can be fitted vertically or horizontally. In case of vertical fitting, it is advantageous to direct the pump head downwards, so that in case of a pump defect the motor is protected against escaping liquid.
ZUWA Impeller Pumps Motor damage can arise due to unsuitable extension cable > For extension cables of length up to 20 metres: Use cables with at least the same cross section as the pump cable. Caution > For extension cables with a length of more than 20 metres: Use cables with a larger cross section than the pump cable.
ZUWA Impeller Pumps Operation with hand drill For operation of the pump with a hand drill, a stepped support is necessary (see Fig.). The height of the step must be such that the pump shaft - drill connection is in a horizontal plane.
Caution the impeller material will become attacked. ZUWA impeller pumps are self-priming, thus, in case of a suction depth of up to 3 metres, it is not necessary to fill the pump prior to commissioning. Material damage due to dry running >...
ZUWA Impeller Pumps 8. Maintenance Danger of death due to electric shock > Prior to work on the pump, always disconnect the drive from the power Danger supply. 8.1 Routine inspection > Regularly check the line connections for leaktightness (particularly on intake side) 8.2 Disassembling the pump...
ZUWA Impeller Pumps Seals Replace O-rings and push firmly into the recesses Replacing shaft gasket: Remove retaining ring with suitable pliers Push out bearing and shaft gasket Push in new shaft gasket and bearing Insert retaining rings 8.4 Assembling the pump 8.4.1...
ZUWA Impeller Pumps 9. Accessories 9.1 Dry run protection Dry run protection keeps the Impeller from overheating when running dry. In a dry run periode the pump heats up. A thermo sensitive switch stops the motor at approximately 70°C. After cooling to 60°C the pump can be restarted.
IP 65 with plug switch box: stainless steel or brass membrane: FKM as standard pressure switch and connector plug 9.4 Tool for changing the impeller A useful tool to install the impeller easily into the casing. Suitable for all ZUWA impellers.
ZUWA Impeller Pumps Troubleshooting Fault Possible cause Remedy Pump does not take in Intake line is not leaktight Seal connection or line liquid Impeller worn or damaged Replace impeller Suction line or foot valve is Clean suction line or foot...
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