sewage pumping station Termojet GRANDLIFT 150-370DW (2×3,7 kW, dual-pump)

Termojet GRANDLIFT 150-370DW is the flagship dual-pump sewage lifting station for facilities where any interruption in wastewater removal is unacceptable. Two 3.7 kW pumps, a 150 l tank, a head of 26.5 m, and a flow rate of 71 m³/h — an industrial-class solution in a compact design for hotels, restaurants, shopping centres, and large country complexes.

How it works. Wastewater flows into a sealed PE tank through DN150 or DN100 inlets. Two submersible pumps with cutting mechanisms operate alternately in normal mode — this distributes wear evenly and doubles the service life of each unit. During peak loads, both pumps operate simultaneously, providing a maximum flow rate of 71 m³/h. If one pump fails, the second automatically takes over the full load without interrupting drainage. The control unit with LCD display manages alternating starts, records operating statistics for each pump, and triggers alarms on faults.

Applications. The GRANDLIFT 150-370DW is chosen when pump station failure would have critical consequences or when wastewater volumes exceed the capacity of single-pump models:

• hotels, hostels, and sanatoriums with round-the-clock sewage loads;
• restaurants and food courts with significant kitchen and sanitary wastewater;
• shopping and office centres with a large number of bathrooms;
• large country complexes and cottage communities with centralised wastewater removal;
• production facilities where wastewater must be pumped to heights exceeding 20 m.

Advantages of Termojet GRANDLIFT 150-370DW. The dual-pump configuration provides 100% redundancy — stoppage of one unit has never interrupted drainage. Alternating starts double the pump service life and reduce maintenance costs. A head of 26.5 m and a flow rate of 71 m³/h cover the needs of most commercial and industrial facilities. Cutting mechanisms with a 60 mm passage handle any domestic and commercial solids in the wastewater. The DN80 check valve is included. IP68 protection class and a sealed odour-free housing meet the highest sanitary standards. The station is a worthy replacement for imported dual-pump sewage lifting systems of equivalent class at a competitive price.

FAQ

What happens if one pump fails at night? The control unit automatically transfers the load to the working pump and activates an audible and visual alarm. Drainage continues without interruption — maintenance staff can rectify the fault at a convenient time.

Can the GRANDLIFT 150-370DW be connected to a building management system? The control unit provides fault signalling via an audible and visual module. For integration with automated building management systems, please contact the Termojet technical department to clarify the available connection options.