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Grundfos EF Submersible Wastewater Pump

EF30.50 EF30.50 EF30.50 EF30.50

The Grundfos EF submersible sewage pump is a professional-grade solution for wastewater discharge.Featuring a high-efficiency hydraulic design,it delivers flow rates up to 200 m³/h and heads up to 45 meters,making it suitable for municipal projects,construction sites,and industrial wastewater treatment.Its robust construction—combining a cast-iron housing with a stainless steel impeller—offers excellent corrosion and wear resistance,ensuring reliability in harsh operating conditions.
Function
Parameters
Size
Video Introduction

Function

I. Scope of Application

1. Multi-scenario suitability

Suitable for both domestic and industrial use.
Can be used for drainage, including surface water containing minor impurities.
Capable of handling wastewater containing fibers, such as laundry discharge.
Suitable for wastewater discharge (excluding toilet waste) in residential and commercial buildings.

II. Structural Design

1. Impeller design
Semi-open impeller with a single vane and a 30 mm free passage.
2. Compact design
Compact size makes it suitable for either temporary or permanent installation.
3. Materials and integration
Cast-iron submersible pump with an integrated single-phase submersible motor.
EN 12050-2 certified.
4. Lubrication system
Features an intermediate oil chamber pre-filled with special non-toxic oil.
5. Cable connection
Equipped with a convenient, easy-to-install/remove cable connection; the connector utilizes a polyurethane seal to prevent water from entering the motor via the cable.
6. Ease of disassembly/assembly
A clamp connection between the pump body and motor facilitates easy disassembly and assembly, allowing for on-site inspection without special tools.
Features a unique cartridge-style double shaft seal design, enabling quick on-site replacement without special tools and eliminating the risk of incorrect installation.
7. Motor characteristics
Motor insulation class F.
Equipped with long-life, deep-groove, sealed ball bearings.

Parameters

model Voltage/Frequency Flow rate (L/s) Head (m) Impeller type Maximum particle size (mm) Power (kW) Current (A) Full-load efficiency (%) caliber
EF30.50 380V/50Hz 5.61-12.9 11.87-22.5 Semi-open 30 1.5 3.8 67.00% 2 inches
EF30.50 220V/50Hz 5.26-12 10.54-19.3 Semi-open 30 1.1 7.4 74.00% 2 inches
EF30.50 220V/50Hz 4.8-10.8 8.84-16.8 Semi-open 30 0.9 6.1 67.00% 2 inches
EF30.50 220V/50Hz 4.08-9 6.21-13.6 Semi-open 30 0.6 4.8 61.00% 2 inches

Size

Video Introduction

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