The 4-pole VT series is designed for pumping particularly heavy wastewater. Its high capacity and large free passages make this series suitable for use in industry, zootechnics, sludge transport, tanneries, and anywhere there is a need to pump liquids containing large solids.
Characteristics
All main components are made of GG25 cast iron. Two separate mechanical seals (the motor side in the oil chamber and the impeller side in contact with the liquid), together with high-quality components, ensure excellent performance and product reliability.
What are the advantages of the V4 wastewater pump?
The four-pole V4 wastewater pump is a professional product for use in municipal and industrial sewer systems, as well as in special pumping stations. Thanks to the large space beneath its Vortex impeller, it can easily pump raw wastewater containing solid and fibrous fractions. Small stones, gravel, and waste are not a problem either. The multi-blade Vortex impeller is resistant to clogging by wipes, strings, and kitchen waste. By creating a water vortex beneath and around the impeller, a significant proportion of solids does not come into direct contact with the impeller, so it wears more slowly than channel impellers. The advantage of the radially expanding channels is that solid fractions entering through the inlet do not become blocked in the impeller channels; instead, they are expelled outward and travel along the pump housing wall to the outlet.
Control
The V4 wastewater pump is primarily a three-phase model with a power rating of up to 7.5 kW, but single-phase pumps with a power rating of up to 1.5 kW are also available. Therefore, three-phase pumps are controlled exclusively by an external signal, while single-phase pumps are controlled by an external signal or a built-in control float. For controlling V4 pumps, we recommend and offer professional power and control panels with relay-contactor or microprocessor-based designs.
Installation
The most common method of installing V4 pumps is mounting them on a DUTY or type B coupling foot in raw wastewater pumping stations. Horizontal type A coupling feet or mobile installations on a type P stand are used less frequently. To lower the pump into the pumping-station tank along guide rails, stainless-steel chains or stainless-steel ropes of suitable strength are used. They are attached to holes in the handle at the top of the pump, ensuring that the pump remains properly balanced during lowering. When installing the coupling foot, remember to keep the bottom of the tank beneath the pump level; otherwise, cavitation may occur, leading to faster wear of the hydraulic components.
Features
• Vortex impeller with a free passage,
• Moisture sensor in the oil chamber, protecting the motor against water ingress if the mechanical seal behind the impeller is damaged,
• Side flanged outlet enables installation on a coupling foot and easy connection of an elbow fitting to a flexible hose using a clamp or quick coupling,
• T1-T2 thermal protection built into the motor winding, for connection to a suitable control panel,
• 10 m H07RNF power cable terminated with a starter box,
• Warranty and post-warranty service,
• 24-month warranty.
Special versions for liquid temperatures of up to 60°C with the pump fully submerged can be manufactured on request (not for continuous operation).
