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 (the motor side in the oil chamber and the impeller side in contact with the liquid), together with high-quality components, ensure the product performs excellently and reliably.
What are the advantages of the V4 sewage pump?
The four-pole V4 sewage pump is a professional product for municipal and industrial sewage systems, as well as special pumping stations. Thanks to the large space beneath its Vortex impeller, it can pump raw sewage containing solid and fibrous matter without difficulty. Small stones, gravel, and waste are no problem either. The multi-vane Vortex impeller resists clogging from tissues, strings, and kitchen waste. The water vortex that forms beneath and around the impeller keeps much of the solid matter from coming into direct contact with it, so the impeller wears more slowly than channel impellers. The advantage of the channels that expand radially is that solid matter entering through the inlet does not get stuck in the impeller channels, but is ejected and travels along the pump casing wall to the outlet.
Control
The V4 sewage pump is primarily a three-phase model with power ratings up to 7.5 kW, but single-phase pumps are also available with power ratings up to 1.5 kW. 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. For controlling V4 pumps, we recommend and offer professional power and control panels with relay-contactor or microprocessor control.
Installation
The most common way to install V4 pumps is to mount them on a DUTY or type B coupling foot in raw sewage pumping stations. Horizontal type type A coupling feet are used less often, as are mobile installations on a type P stand. A stainless steel chain or stainless steel cable of suitable strength is used to lower the pump along guide rails into the pumping station tank. It is attached to the holes in the handle at the top of the pump, ensuring the pump remains properly balanced while being lowered. When installing the coupling foot, ensure the tank bottom beneath the pump is flat; otherwise, cavitation may occur and hydraulic components may wear out faster.
Features
• Vortex impeller with free passage,
• Moisture sensor in the oil chamber, which protects the motor from flooding if the mechanical seal behind the impeller is damaged,
• Side flanged outlet allows installation on a coupling foot and easy fitting of an elbow connection for a flexible hose with a hose clamp or quick connector,
• T1-T2 thermal protection built into the motor winding, for connection to a compatible control panel,
• 10 m H07RNF power cable terminated with a start box,
• Warranty and post-warranty service,
• 24-month warranty.
On request, special versions for liquid temperatures up to 60°C can be made with the pump fully submerged (not for continuous operation).
