Grundfos - EF30.50.11.Ex.2.50B Submersible Wastewater Pump - 400V - Three Phase - 738 Ltr/min. - Cast Iron

GRUNDFOS EF 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

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 explosion-proof 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.

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: 42 kg
• Mains frequency: 50 Hz
• Approvals: EN 12050-2
• Rated Head: 10.4 m
• Max Head: 20.9 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: Rs2
• 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.