The four-pole VT series is designed to pump particularly heavy wastewater. Its high capacity and large free passages make it suitable for use in industry, animal husbandry, sludge transport, tanneries, and anywhere liquids containing large solids need to be pumped.
Specifications
All main components are made of GG25 cast iron. Two separate mechanical seals (on the motor side in the oil chamber and on the impeller side in contact with the liquid), together with high-quality components, ensure excellent performance and reliability.
What are the advantages of the V4 sewage pump?
The four-pole V4 sewage pump is a professional product for municipal and industrial sewer systems, as well as specialized pumping stations. Thanks to the large space beneath its Vortex impeller, it can easily pump raw sewage containing solid and fibrous matter; small stones, gravel, and rubbish are no problem either. The multi-vane Vortex impeller resists clogging by wipes, strings, and kitchen waste. The water vortex created beneath and around the impeller means that much of the solid matter does not come into direct contact with it, so the impeller wears more slowly than channel impellers. The advantage of radially expanding channels is that solid matter entering through the inlet does not get stuck in the impeller channels, but is expelled and travels along the pump casing wall to the volute.
Control
The V4 sewage 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. Three-phase pumps are therefore controlled exclusively by an external signal, while single-phase pumps can be controlled by an external signal or a built-in float switch. To control V4 pumps, we recommend and offer professional power and control panels with relay-contactor or microprocessor-based controls.
Installation
The most common way to install V4 pumps is to mount 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 into the pumping station tank along the guide rails, use a sling made of stainless steel chain or stainless steel cable with suitable strength. Attach it to the holes in the bracket at the top of the pump to ensure the pump remains properly balanced while being lowered. When installing the coupling foot, make sure the bottom of the tank beneath the pump is flat; otherwise, cavitation may occur, causing the hydraulic components to wear out more quickly.
Features
• Vortex impeller with free passage,
• Moisture sensor in the oil chamber protects the motor from water ingress if the mechanical seal behind the impeller is damaged,
• Side flange outlet allows installation on a coupling foot and easy fitting of an elbow connector for a flexible hose with a clamp or quick coupling,
• Built-in float switch to control pump operation and protect against dry running,
• Built-in T1-T2 thermal protection in the motor winding, for connection to a suitable control panel,
• 10 m H07RNF power cable with a starter box,
• Warranty and post-warranty service,
• 24-month warranty.
Special versions designed for liquid temperatures up to 60°C with the pump fully submerged can be made to order (not for continuous operation).
