Flow Meter Demonstration Unit
Product Code : EL-FMLE-10658
QUICK ANSWER: The Flow Meter Demonstration Unit is a Hydraulics-Bench-mounted apparatus that lets students directly compare three flow-measurement devices – a Venturi meter, a variable-area meter and an orifice plate – fitted with a flow-control valve and an eight-tube manometer board (range 0-400mm) for reading the head loss across each device. Pressure tappings built directly upstream and downstream of each meter, plus additional tappings along the Venturi that are displayed on a multi-tube manometer, allow the pressure-loss curve to be plotted and each flow meter to be volumetrically calibrated against the bench's measuring tank, over a variable-area-meter range of 2-20 l/min.
The Flow Meter Demonstration Apparatus contains different flow-rate measurement devices that are clearly laid out with their associated pipework on a metal sheet; the measuring devices are made of transparent plastic so that their function can be observed. A flow-control valve permits variation of the flow rate through the circuit, and pressure tappings are incorporated so that the head-loss characteristics of each flow meter can be measured; these tappings are connected to an eight-tube manometer bank incorporating a manifold with an air-bleed valve, while a hand pump facilitates pressurization of the manometers.
The circuit and manometer are attached to a support framework, which stands on the working top of the Hydraulics Bench; the apparatus is placed on the bench, which provides the water supply to the unit and is also used for volumetrically calibrating each flow meter. A multiple-tube manometer is also included so that the pressure curve along the venturi flow meter can be displayed.
FEATURES:
Directly comparing flow measurement using a Venturi meter, variable area meter and orifice plate
Calibrating each flow meter using the volumetric measuring tank of the bench
Comparing pressure drops across each device
Venturi meter, variable-area meter and orifice plate with flow-control valve
Pressure tappings to measure head loss across each meter
Quick-release fitting for easy connection to Hydraulics Bench
Supplied with manometer board with eight tubes
SPECIFICATION:
Manometer range: 0-400mm
Variable area meter: 2-20 l/min
Number of manometer tubes: 8
Orifice plate diameter: 20mm
Venturi dimensions:
Throat diameter: 15mm
Upstream pipe diameter: 31.75mm
Upstream taper: 21° inclusive
Downstream taper: 14° inclusive
DIMENSIONS AND WEIGHT:
L x W x H: 800 x 800 x 1200 mm
Weight: 120kg
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Last Updated: September 2026Related Products: Orifice and Venturi Meter Demonstration, Bernoulli Theorem Demonstration Module, Pitot Tube Apparatus, Orifice and Mouth Piece Flow Apparatus
