The VTH two-pole series is designed for pumping wastewater containing solids. Its high efficiency makes it suitable for use in: wastewater treatment plants, industrial sewage systems, agriculture, and drainage.
Characteristics
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 excellent performance and product reliability.
What are the advantages of VTH sewage pumps?
VTH two-pole sewage pumps are professional products for use in municipal and industrial sewage systems, as well as in special pumping stations. Thanks to the large space beneath the Vortex impeller, they can easily pump raw sewage containing solid and fibrous fractions; small stones, gravel, and waste are not a problem either. The multi-blade Vortex impeller is resistant to clogging by wipes, strings, or 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 radially expanding channels is that solid fractions entering through the inlet do not become lodged in the impeller channels but are expelled outward and travel along the pump housing wall to the throat.
Control
VTH sewage pumps are models with a power rating above 10 kW and are exclusively three-phase, so pump control is carried out solely via an external signal. For controlling VTH pumps, we recommend and offer professional power and control panels with relay-contactor or microprocessor-based systems. These can also provide fault notifications via SMS and internet monitoring.
Installation
The most commonly used method of installing VTH pumps is mounting them on a DUTY coupling foot or a 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. To lower the pump along guide rails into the pumping station tank, slings in the form of a stainless-steel chain or stainless-steel cable of suitable strength are used. They are attached to holes in the handle at the top of the pump, ensuring proper pump balance 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 free passage,
• Moisture sensor in the oil chamber, protecting the motor from 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 to a flexible hose using a clamp or quick coupling,
• 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 on request (not for continuous operation).
