The four-pole VT series is designed to pump particularly heavy wastewater. Its high capacity and large passageways make it suitable for use in industry, animal husbandry, sludge transport, tanneries and anywhere liquids containing large solids need to be pumped.
Specifications
All major 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 product 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 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 rubbish are no problem either. The multi-vane Vortex impeller resists clogging from wipes, strings and kitchen waste. The water vortex formed 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 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 outlet.
Control
The V4 sewage pump is primarily a three-phase model with power ratings up to 7.5 kW, but single-phase pumps with power ratings 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. For controlling V4 pumps, we recommend and offer professional power and control panels with relay-contactor or microprocessor control.
Installation
The most common installation method for V4 pumps is mounting on a DUTY coupling foot or a type B elbow in raw wastewater pumping stations. Horizontal coupling feet type A and mobile installations on a type P stand are used less frequently. For lowering the pump along guide rails into the pumping station tank, slings made of stainless-steel chain or stainless-steel cable of suitable strength are used. They are attached to the holes in the bracket at the top of the pump, allowing the pump to remain properly balanced while being lowered. When installing the coupling foot, ensure that the tank floor beneath the pump is flat; otherwise, cavitation may occur, causing faster wear of the hydraulic components.
Features
• Vortex impeller with free passage,
• Moisture sensor in the oil chamber, which protects the motor from water ingress 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 clamp or quick connector,
• 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.
On request, special versions can be made for liquid temperatures up to 60°C with the pump fully submerged (not for continuous operation).
