The VT 4-pole series is designed for pumping particularly heavy wastewater. High efficiency and large free passages make this series suitable for use in industry, animal husbandry, sludge transport, tanneries, and anywhere 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 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 the Vortex impeller, it can easily pump raw wastewater containing solid and fibrous particles; small stones, gravel, and rubbish 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 passages is that solid particles entering through the inlet do not become lodged in the impeller passages but are expelled outward and travel along the pump housing wall to the discharge throat.
Control
The V4 wastewater pump is exclusively a three-phase model with a power rating of up to 7.5 kW, so the pumps are controlled solely by an external signal. For controlling V4 pumps, we recommend and offer professional power and control panels with relay-contactor or microprocessor-based control. They can also provide failure notifications via SMS and remote monitoring over the internet.
Installation
The most common installation method for V4 pumps is mounting on a DUTY coupling foot or a type B coupling foot in raw wastewater pumping stations. Horizontal coupling feet of type A or mobile installations on a type P stand are used less frequently. To lower the pump along guide rails into the pumping station tank, stainless-steel chains or stainless-steel cables 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 more quickly.
Features
• Vortex impeller with 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 enables installation on a coupling foot and easy installation of an elbow connection for a flexible hose with a hose 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 to order (not for continuous operation).
