EF30.50 .11.E.2.50B GRUNDFOS EF AUTOADAPT pump is a portable pump for both domestic and industrial applications.
The pump has a single-vane, semi-open impeller for 30 mm free passage and is appropriate for pumping
- wastewater from commercial buildings without discharge from toilets
- wastewater without discharge from toilets
- wastewater with fibres, e.g. from laundries
- drainage and surface water with small impurities
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The space-efficient design makes the pump appropriate for both temporary and permanent installation.
The pump is a Cast Iron submersible pump with integrated submersible 3-phase motor. Approvals: EN 12050-2
The pump has an intermediate oil chamber pre-filled with non-toxic special oil.
The pump is equipped with a cable plug for straightforward dismantling. This plug is hermetically sealed with polyurethane to prevent water from penetrating through the cable into the motor.
A clamp between pump housing and motor ensures straightforward and safe dismantling and assembly. Inspection can be done in the field without any special tools.
The pump is equipped with a double shaft seal in the unique cartridge design. This makes it straightforward to replace the shaft seal very quickly in the field without any special tools. It also eliminates the risk of faulty installation.
The motor is insulation class F and has long-life, deep-groove, greased-for-life ball bearings.
The Grundfos EF AUTOADAPT pumps incorporate a controller, sensors and motor-protection. They only need to be connected to the mains supply. If several pumps are installed in the same tank, the control logic incorporated in the pump will ensure that the load is distributed evenly among the pumps over time.
The pump incorporates an alarm relay output. NC and NO are available and can be used as required, for example for acoustic or visual alarms.
- Anti-seizing system
- Self-calibration after each pump cycle
- The pump does not start unless the phase sequence is correct
- Random start delay in case of general power shutdown
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The anti-seizing system start the pump at programmed intervals to prevent the impeller from seizing up. This function will overwrite the dry-run sensor for non EX versions.
- After-run possibility (foam draining)
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After-run is possible in programmed intervals if risk of floating layer.
The Grundfos CIU unit can be connected permanent or temporarily for changing the pre-setting, further settings or read out from the logging and operation parameters like no. of starts and operating hours.
Suitable for: Commercial wastewater, Wastewater transport
Real-world product applications
- Handling liquids containing suspended solids
- Supporting drainage in foul-water installations
- Assisting with wastewater movement on sites and properties
Key Product Features
- Net weight: 44.8 kg
- Mains frequency: 50 Hz
- Approvals: EN 12050-2
- Rated Head: 10.4 m
- Max Head: 17.9 m
- Rated Flow: 5.46 l/s
- Product Voltage: 3 x 400-415 V
- Temperature Liquid Range: 0 .. 40 °C
- Connection Size: 2 inch
- Type of connection: R
- Maximum Operating Pressure: 6 bar
- Impeller Material: Cast Iron
- Pump Housing Material: Cast Iron
This is a Grundfos Wastewater/Sewage pump for foul water transfer duties.
Grundfos (est. 1945) is a Danish pump manufacturer known for high-efficiency circulators, multistage boosters, borehole and wastewater pumps, plus packaged pressure systems. The range covers HVAC circulation, domestic hot water recirculation, pressure boosting, industrial water transfer and public water management, with strong focus on energy efficiency and intelligent controls.
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