MR-HL 113 Installation Technology: Losses In Valves And Fittings

MR-HL 113 Installation Technology: Losses In Valves And Fittings Didactic Equipment Vocational Training Equipment Thermal Laboratory Equipment

Description
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.

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
[1] investigation of the pressure losses at various shutoff valves and fittings
[2] pipe elements are commercially standard components in heating and sanitary engineering
[3] clear panel mounted on a sturdy, movable frame
[4] pipe sections can be individually selected via ball valves
[5] water connections with quick-release couplings
[6] flow can be adjusted via valves
[7] flow measurement using rotameter
[8] differential pressure measurement via differential pressure meter with display

Technical data
Ball valve, plastic, transparent, Ø: DN32
Ball valve, steel, Ø: DN15
Angle seat valve, Ø: DN15
Screw-down valve, Ø: DN15
Gate valve, Ø: DN15
Differential pressure meter
Measuring ranges
• flow rate: 200…1700L/h
• pressure: ±200mbar