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, animal husbandry, sludge transport, tanneries, and wherever 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 seal in the oil chamber and the impeller-side seal 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 sewage systems, as well as in special pumping stations. Thanks to the large space beneath the Vortex impeller, it can easily pump raw sewage containing solid and fibrous fractions; small stones, gravel, and waste are not a problem either. The multi-vane 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 the 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 stuck in the impeller channels, but are expelled outward and travel along the pump housing wall to the volute.
Control
The V4 wastewater pump is available exclusively as a three-phase model with power up to 7.5 kW, so the pumps are controlled exclusively by an external signal. For controlling V4 pumps, we recommend and offer professional power and control panels with relay-contactor or microprocessor-based configurations. These can also provide fault notifications via SMS and internet monitoring.
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 wastewater pumping stations. Less commonly used are horizontal coupling feet of type A or mobile installations on a type P stand. To lower the pump along guide rails into the pumping station tank, 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, allowing the pump to remain properly balanced during lowering. When installing the coupling foot, remember to maintain a flat tank bottom beneath the pump; 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 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 using a hose clamp or quick coupling,
• Built-in float switch controlling pump operation and protecting against dry running,
• 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 up to 60°C with the pump fully submerged can be manufactured to order (not for continuous operation).
