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 wherever there is a need to pump liquids containing large solids.
Characteristics
All major 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 sewage pump?
The four-pole V4 sewage 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 sewage containing solid and fibrous particles; small stones, gravel, and debris are also not a problem. 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 portion of the solids does not come into direct contact with the impeller, meaning that it wears more slowly than channel impellers. The advantage of the radially expanding channels is that solid particles entering through the inlet do not become lodged in the impeller channels, but are expelled outward and travel along the pump housing wall to the volute.
Control
The V4 sewage pump is exclusively a three-phase model with a power rating of up to 7.5kW, so the pumps are controlled exclusively by an external signal. For controlling V4 pumps, we recommend and offer professional power and control panels in relay–contactor or microprocessor-based versions.
Installation
The most common method of installing V4 pumps is mounting them on a DUTY coupling foot or a type B coupling elbow in raw sewage pumping stations. Less commonly used are horizontal type A coupling feet or mobile installations on a type P stand. To lower the pump along guide rails into the pumping station tank, slings in the form of a stainless-steel chain or stainless-steel cable of suitable strength are used. They are attached to the holes in the handle at the top of the pump, ensuring proper pump balance during lowering. When installing the coupling foot, remember to maintain a flat tank bottom beneath the pump; otherwise, cavitation may occur and the hydraulic components may wear out more quickly.
Features
• Vortex impeller with a free passage,
• Moisture sensor in the oil chamber, protecting the motor from flooding if the mechanical seal behind the impeller is damaged,
• Side flanged outlet enabling installation on a coupling foot and easy installation of an elbow connection for 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 free leads,
• 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 to order (not for continuous operation).
