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HM 150.29 Losses in Bends and Fittings
Education / GUNT Hamburg / Fluid Mechanics and Hydrology / Fundamentals of Fluid Mechanics /


The HM 150.29 unit is used for the investigation of pressure losses in bends, fittings and valves, as well as in constrictions and increases in size. The measured section consists of a pipe system with different fittings, a ball-cock, an increase in size and a constriction. The flow rate can be adjusted using the ball-cock. A 6 tube manometer and a spring-tube manometer are used to determine individual differential pressures. Annular measuring chambers guarantee interference-free pressure measurement. The water supply is provided by the HM 150 Basic Hydraulics Bench.


Learning Objectives / Experiments

- Investigation of the pressure losses at bends and

- Comparison of different bends and fittings
- Determination of a valve characteristic curve


[1] Experimental set-up for placing on the HM 150 Basic Hydraulics Bench
[2] With HM 150 Basic Hydraulics Bench a closed water circuit is set up
[3] 6 tube manometer 0…300mmWC
[4] Spring-tube manometer 0...0.6bar
[5] Pipework as well as fittings made of plastic
[6] Constriction, increase in size, ball-cock, pipe bend, elbows and bends as measured objects


Technical Data

6 tube manometer 0...300mmWC
Spring-tube manometer 0...0.6bar
Nominal diameter of pipework 17mm


Dimensions and Weight
l x w x h: 875 x 640 x 900 mm
Weight: approx. 31kg
Scope of Delivery
1 experimental set-up, 1 manual
Order Details

070.15029  HM 150.29  Losses in Bends and Fittings