Home           Products           Company           Contact us     
Theory of Machines and Properties of Materials
Mechatronics
Thermodynamics, Heating and Sanitary Systems
Fluid Mechanics and Hydrology
> Fundamentals of Fluid Mechanics
> Flow in Pipes
> Turbomachine Demonstrators
> Turbomachines
> Fundamentals of Aerodynamics and Airflow
> Hydrology and Hydraulic Engineering
> Components in Piping Systems
Process Control and Process Engineering
Overviews
Products  |  Fluid Mechanics and Hydrology  |  Flow in Pipes  |  HM 122
HM 122 Fluid Friction in Pipes and Fittings Show data sheet (pdf file) Print page
Technical Description
The measuring system includes various measured sections that are clearly laid out on a demonstration panel. There are straight pipe sections made of different materials, and also measured sections with different elbows and bends, pipe fittings, and a range of measured objects. To make their function visible, the measured objects are made of transparent plastic. The pipework on the stand is made of corrosion resistant materials. The closed water circuit and the installation of the measuring system on a laboratory trolley make it flexible in use. A water meter and 2 flowmeters with different measuring ranges are included for comparative measurements. A battery-operated differential pressure gauge, a leaf spring manometer and a liquid-level manometer are provided for pressure measurements.
Learning Objectives / Experiments
· Laminar and turbulent pipe flow with friction
· Determination of the pipe friction coefficient
· Drag coefficients for bends and elbows
· Determination of pressure loss at pipe fittings
· Volumetric flow measurement with nozzle/orifice
· Volumetric flow measurements with Pitot tube
· Volumetric flow measurements with Venturi tube
· Comparison of different measuring techniques
Features
Flexible in use measuring system
Closed water circuit with tank and pump
Part of measured objects transparent
Pressure measurement with annular chambers
Alternative products
HM 110 -- Hydrodynamics Trainer
HM 112 -- Hydrodynamics Trainer / PC
HM 125 -- Pipe Friction Bench
Specification
[1] Measuring system for investigating flow losses
[2] Closed water circuit with 70Ltr tank and submersible pump with max.13.8m³/h
[3] Measured section with standardised pipe lengths and pipes made of different materials and of different diameters
[4] Measured section with various elbows and bends
[5] Measured section with various isolating fittings
[6] Measured section with various transparent measured objects
[7] Battery-operated differential pressure gauge 0...2000mbar
[8] Two tube manometer 680mm WC
Technical Data
Measuring objects
Transparent nozzle/orifice d=18.5mm
Measuring nozzle d=14mm
Transparent Venturi tube 28.4-14-28.4mm
Transparent Pitot tube d=17mm

Spring-tube manometer 0...1.6bar
Variable-area flowmeter 400...4000Ltr/h
Variable-area flowmeter 60...700Ltr/h
Water meter, nominal flow rate 6m³/h
Dimensions and Weight
l x w x h: 2740 x 620 x 1800 mm
Weight : approx. 275 kg
Connections
230V,~50Hz
Scope of Delivery
1 measuring system, complete,
1 instruction manual
Order Details
070.12200 HM 122 Fluid Friction in Pipes and Fittings
Print
© 2005 G.U.N.T. Gerätebau GmbH