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HM 305 Industrial Centrifugal Pump
Education / GUNT Hamburg / Fluid Mechanics and Hydrology / Hydraulic Fluid Energy Machines /


 The HM 305 Centrifugal Pump Test Rig is a mobile system with a closed water circuit that is intended both for training in vocational colleges and also for laboratory experiments in higher education. The system is equipped with a centrifugal pump and various transducers, e.g. the torque on the shaft of the speed-controlled pump motor is measured and indicated on the switch box, as is also the rotational speed, current and voltage. Manometers indicate the pressure on the intake and delivery side of the pump. The flow rate is measured using an electronic pressure sensor and a nozzle or orifice. In this way the system provides a whole host of measured data that permit students to perform experiments on the basic principles of a hydraulic circuit.

Learning Objectives / Experiments
The range of experiments covers:

Volumetric flow measurement using nozzle / orifice
Recording of pump characteristic curves
Recording of a system characteristic curve
Calculation of efficiencies
[1] Experimental set-up on laboratory trolley
[2] l x w x h 2000x750x1720mm, 165kg
[3] Centrifugal pump 1.06kW, Qmax 10.7m³/h, max. head 4.8m, manometer on intake and delivery side
[4] Digital displays of rotational speed, moment, current and voltage on switch box
[5] Closed water circuit with tank 96ltr
[6] Differential pressure measurement with electronic sensor, measuring range 0...1000mbar
[7] 230V,~50Hz
Technical Data
Pump 1.06kW
Qmax: 10.7m3/h
Head: 4.8m
Speed measurement: 0...3000rpm
Water meter nominal flow rate: 10m3/h
Measuring range of differential pressure sensor: 0...1000mbar
Manometer: intake side: -1..0.6bar
Delivery side 0..1.6bar
Tank: 96litres
Dimensions and Weight
l x w x h : 2000 x 750 x 1720 mm
Empty weight: approx. 165 kg
Required for Operation
Scope of Delivery
1 test rig, fully assembled on laboratory trolley, 1 set of accessories, 1 instruction manual
Order Details
070.30500 HM 305 Industrial Centrifugal Pump