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ATT-PT500 Vertical Series Small Sewage Ejector
ATT-PT500 External Vertical Series – Large-Capacity Dual-Pump Sewage Ejector
The ATT-PT500 External Vertical Series is a high-capacity, dual-pump sewage lifting system designed for large commercial complexes, public institutions, high-traffic public spaces, and multi-residential buildings. It is ideally suited for continuous high-flow drainage applications. The redundant dual-pump system operates alternately under normal conditions and simultaneously during peak flow. In the event of a pump failure, the system automatically switches to single-pump operation, isolates the faulty unit, and triggers an alarm—significantly improving service life and reducing maintenance costs. Power supply: 380V.
The external vertical unit is constructed from corrosion-resistant, environmentally friendly polyethylene (PE) offering superior sealing and durability. With a tank capacity of approximately 500 liters, it includes multiple configurable vertical and horizontal inlet options for flexible installation.
Key Features & Specifications:
Clog-resistant vortex impeller
Power options: 5.5–11 kW
Pump body: HT250 / SUS304
Vortex impeller: HT250
Shaft: SUS410
Max particle passage: 60 mm
Max starts per hour: 120
Built-in DN80 check valve
Standard 5-meter cable for controller, pump, and 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 support)