Losses In Valves And Fittings
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Product Description
INSTALLATION TECHNOLOGY: LOSSES IN VALVES AND FITTINGS
Pressure losses occur in pipe systems as a result of friction and turbulence. In practice, the use of shut-off valves and fittings causes pressure losses that need to be taken into consideration when designing pipe networks. The unit used to investigate the pressure losses of different shut-off valves and fittings. The pipe elements used are commercially standard components in heating and sanitary engineering. The clear panel is mounted on a sturdy, movable frame.
The trainer consists of five pipe sections, in each of which different shut-off valves and fittings are fitted. The pipe sections can be individually selected via ball valves. One of the pipe sections is transparent with a transparent ball valve in order to visualise the flow conditions upstream and downstream of a shut-off valve. The flow is adjusted using valves in the inlet and outlet and read on a rotameter. The pressure measuring points in the pipe system are designed as annular chambers and are located directly upstream and downstream of the valves and fittings, ensuring a precise pressure measurement. The sensors are connected in pairs to a differential pressure meter and the respective differential pressure read on the display.
The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.
Learning Objectives / Experiments
- Pressure losses in valves and fittings
- Measuring the pressure difference
- Effect of the valve orifice shape on the pressure loss
- Effect of the flow velocity
- Determination of resistance coefficients
- Comparison between experiment and calculation
Specification
- Investigation of the pressure losses at various shut-off valves and fittings
- Pipe elements are commercially standard components in heating and sanitary engineering
- Clear panel mounted on a sturdy, movable frame
- Pipe sections can be individually selected via ball valves
- Water connections with quick-release couplings
- Flow can be adjusted via valves
- Flow measurement using rotameter
- Differential pressure measurement via differential pressure meter with display
Technical Data
- Ball valve, plastic, transparent, diameter: Dn32
- Ball valve, steel, diameter: Dn15
- Angle seat valve, diameter: Dn15
- Screw-down valve, diameter: Dn15
- Gate valve, diameter: Dn15
- Differential pressure meter
Measuring ranges
- Flow rate: 200...1700L/h
- Pressure: -200...200mbar
Dimensions and Weight
- LxWxH: 1650x700x1850mm
- Weight: approx. 90kg
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