The VTH 2-pole series is designed for pumping wastewater containing solids. Its high efficiency makes it ideally suited 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 wastewater pumps?
VTH two-pole wastewater pumps are professional products for use in municipal and industrial sewage systems, as well as special pumping stations. Thanks to the large space beneath the Vortex impeller, they can easily pump raw wastewater containing solid and fibrous fractions. Small stones, gravel, and debris are also not a problem. The multi-blade Vortex impeller is resistant to clogging by wipes, strings, and kitchen waste. By creating a water vortex beneath and around the impeller, a significant portion of the solids does not come into direct contact with the impeller, so it wears more slowly than channel impellers. The advantage of the radially expanding channels is that solid fractions entering through the inlet do not become blocked in the impeller channels but are expelled outward and travel along the pump housing wall to the volute.
Control
VTH wastewater pumps with power ratings above 10 kW are exclusively three-phase models, 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 elbow in raw wastewater pumping stations. Horizontal coupling feet type A or mobile installations on a type P stand are used less frequently. 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 the holes in the handle at the top of the pump, ensuring that the pump remains properly balanced during lowering. When installing the coupling foot, remember to maintain a flat tank bottom beneath the pump; otherwise, cavitation cavitation may occur, resulting in faster wear of the hydraulic components.
Features
• Vortex impeller with free passage,
• Moisture sensor in the oil chamber, protecting the motor against flooding in the event of damage to the mechanical seal behind the impeller,
• Side flanged outlet enables mounting on a coupling foot and easy installation of an elbow connection for a flexible hose with 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 of up to 60°C with the pump fully submerged can be manufactured to order (not for continuous operation).
