The four-pole VT series is designed to pump particularly heavy sewage. 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 reliability.
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 rubbish are no problem either. The multi-vane Vortex impeller is resistant to clogging from tissues, strings and kitchen waste. The water vortex that forms beneath and around the impeller means that many solids do not come into direct contact with it, so it wears more slowly than channel impellers. The radially expanding channels prevent solids entering through the inlet from getting stuck in the impeller channels; instead, they are expelled and travel along the pump casing wall to the outlet.
Control
The V4 sewage pump is a three-phase-only model with a power rating of up to 7.5 kW, so the pumps are controlled exclusively by an external signal. To monitor and control V4 pumps, we recommend and offer professional power and control panels with relay-contactor or microprocessor-based control. They also provide fault notifications via SMS and online monitoring.
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. Less commonly used are horizontal Type A coupling feet or mobile installations on a Type P stand. For lowering the pump into the pumping station tank along guide rails, lifting equipment in the form of a stainless steel chain or stainless steel cable of suitable strength is used. These are attached to holes in the handle at the top of the pump, allowing it to remain properly balanced while being lowered. When installing the coupling foot, remember to keep the bottom of the tank beneath the pump flat; otherwise, cavitation may occur and hydraulic components may wear out faster.
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 mounting on a coupling foot and easy installation of an elbow fitting for a flexible hose with a clamp or quick connector,
• Built-in float switch controls pump operation and protects against dry running,
• T1-T2 thermal protection built into the motor winding, for connection to a suitable control panel,
• 10 m H07RNF power cable with unterminated ends,
• Warranty and post-warranty service,
• 24-month warranty.
Special versions for liquid temperatures up to 60°C with the pump fully submerged can be made to order (not for continuous operation).
