HM 150.11 Losses In A Pipe System Vocational Training Equipment Didactic Equipment Fluid Mechanics Lab Equipment Description
Pressure losses occur during the flow of real fluids due to friction and turbulence (vortices). Pressure losses in pipes, piping elements, fittings and measuring instruments (e.g. flow meter, velocity meter) cause pressure losses and must therefore be taken into account when designing piping systems. HM 150.11 allows to study the pressure losses in pipes, piping elements and shut-off devices. In addition, the differential pressure method is presented for measuring the flow rate.
The experimental unit contains six different pipe sections capable of being shut off individually. The pipe sections are equipped with piping elements such as bends, elbows and branches. In one pipe section, different shut-off devices and measuring objects are installed to determine the flow rate. The measuring objects are made of transparent material and provide excellent insight into the inner structure. The pressure measuring points in the piping system are designed as annular chambers. This creates a largely interference-free pressure measurement. The experiments measure the pressure losses in pipes and piping elements, such as branches and bends. The opening characteristic of the shut-off devices are also recorded. The pressures are measured with twin tube manometers. The experimental unit is positioned easily and securely on the work surface of the HM 150 base module. The water is supplied and the flow rate measured by HM 150. Alternatively, the experimental unit can be operated by the laboratory supply. Technical details
Specification
investigation of pressure losses in piping elements and shut-off devices
different measuring objects for determining flow rate according to the differential pressure method
six pipe sections capable of being individually shut off, with different piping elements: sudden contraction, sudden enlargement, Y-pieces, T-pieces, corners and bends
one pipe section to hold interchangeable shut-off/measuring objects
measuring objects made of transparent material: Venturi nozzle, orifice plate flow meter and measuring nozzle
shut-off devices: angle seat valve, gate valve
annular chambers allow measurement of pressure without interaction
2 twin tube manometers for measuring the pressure difference
flow rate determined by HM 150 base module
water supply using HM 150 base module or via laboratory supply Technical data
Pipe section to hold fittings or measuring objects
20x1,5mm, PVC
Pipe sections
Inner diameter: d
straight: d=20x1,5mm, length: 800mm, PVC
sudden contraction: d=32x1,8-20x1,5mm, PVC
sudden enlargement: d=20x1,5-32x1,8mm, PVC
with 2x Y-piece 45° and 2x T-piece
with 2x 90° elbow/bend: d=20x1,5mm, PVC and 2x 45° elbow: d=20x1,5mm, PVC
2x twin tube manometers: 0…1000mmWC
Measuring ranges
pressure: 0…0,1bar
