Flowmeter Measurement Apparatus

Flowmeter Measurement Apparatus .
The Flowmeter Measurement Apparatus consists of a Venturi meter, variable area meter and orifice plate, installed in a series configuration to permit direct comparison. A flow control valve permits variation of the flow rate through the circuit.

Pressure tappings are incorporated so that the head loss characteristics of each flow meter may be measured. These tappings are connected to an eight tube manometer bank incorporating a manifold with air bleed valve. Pressurisation of the manometers is facilitated by a hand pump.

The circuit and manometer are attached to a support framework which stands on the working top of the Hydraulics Bench. The bench is used as the source of water supply and for calibrating volumetrically each flow meter.


  • Venturi meter, variable area meter and orifice plate with control valve
  • Supplied with manometer board with eight tubes
  • Pressure tappings to measure head loss from each meter
  • Quick release fitting for easy connection to hydraulics bench

Technical Details



Flowmeter Measurement Apparatus

Manometer range

0 to 440mm

Number of manometer tubes


Orifice plate diameter


Variable area meter

2 to 20 litres/min

Venturi dimensions

Throat diameter: 15mm

Upstream pipe diameter: 31.75mm

Upstream taper: 21o inclusive

Downstream taper: 14oinclusive

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