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ATT-PT450 Series Small Sewage Ejector
ATT-PT450 Series Large-Capacity Dual-Pump Sewage Ejector System
The ATT-PT450 is a high-volume, dual-pump sewage lifting unit designed for large commercial complexes, public institutions, multi-unit residential buildings, and other high-traffic facilities. Ideal for continuous high-flow drainage applications, its redundant pump system allows alternating operation under normal conditions and simultaneous operation during peak flow. If one pump fails, the system automatically switches to single-pump mode, isolates the faulty unit, and triggers an alarm—significantly enhancing operational reliability and reducing maintenance costs. Power supply: 380V/220V.
Constructed with corrosion-resistant and environmentally friendly polyethylene (PE) material, the tank offers excellent sealing and long-term durability. With a capacity of approximately 450 liters, it features multiple optional vertical and horizontal inlets for flexible installation.
Pump Features:
Clog-free vortex impeller
Available power: 2.2 kW – 3.7 kW
Pump body: HT250 / SUS304
Vortex impeller: HT250
Shaft: SUS410
Maximum passage diameter: 60 mm
Max pump starts: 120 times/hour
Built-in DN80 check valve
Standard 5-meter cable for both controller-pump and controller-float connections
DN80 vertical outlet (reducible)
Dual-level activation: air pressure + float switch for redundant protection
IP68 protection rating (control cabinet excluded)
Anti-float fixed mounting (anchor bolt compatible)