SPECIFICATIONS

A self-contained unit to demonstrate the characteristics of flow meters used in measurement of water flow through pipes or open channels.
Anodized aluminium structure and panel in painted steel.
Diagram in the panel with similar distribution to the elements in the real unit.
This unit has wheels for its mobility.

PIPE CIRCUIT, INCLUDING

• Flow regulation valve.
• Several pressure measurement tappings.
• Air entrainment device.
• Flexible pipe to connect to the Hydraulics Bench.
• Additional pipes to change the pipe circuit configuration.

Water manometer of 1 m. length and 2 Bourdon type manometers from 0 to 2.5 bar, precision 1%., to measure the pressure drop.
Flow meters are mounted in pipes that can be fitted into the unit test zone quickly and easily.

Meters included:

FM 25-1 ORIFICE PLATE:

• Made of transparent methacrylate.
• Pipe diameter D1: 35 mm.
• Orifice diameter D2: 20 mm.
• Area 1=9.079 x10-4 m2. Area 2=3.14 x10-4 m2

FM 25-2 VENTURI:

• Made of transparent methacrylate.
• Diameter h1: 32 mm. Diameter h2: 20 mm. Diameter h3: 32 mm.
• Distance between h1 and h2: 67.5 mm. Distance between h2 and h3: 87.5 mm.
• Area 1= 8.04 x10-4 m2 Orifice diameter: 20 mm. Area 2= 3.14 x10-4 m2
• Upstream narrowing: 14º.
• Downstream narrowing: 21º

FM 25-3 SHUNT GAPMETER:

• Made of steel.
• Range: 0 to 20 m3 /h.

FM 25-4 PITOT:

• Made of transparent methacrylate.
• Pipe diameter: 35 mm.

FM 25-5 VOLUMETRIC ROTARY PISTON:

• Precision: +/- 0.8%.
• Repeatability: +/- 0.3%.
• Measurement range: 30/1800 l./h.

FM 25-6 SWINGING FLAP:

• Pipe Dn40 flowmeter.
• Range: 1 to 12 m3 /h.

FM 25-7 HELICAL ROTARY:

• Made of stainless steel.
• Range: 1 to 150 l. /min.
• Precision: +/- 1% of the reading.
• Repeatability: +/- 0.05%.
• Maximum pressure: 450 bar.

FM 25-8 ELECTRO-MAGNETIC:

• PVC pipe Dn32.
• Range: 0.05 to 10 m/s.
• Measure error: +/- 2%.
• Linearity: +/- 1%.
• Reproducibility: 0.25% of medium value.
• Conductivity: minimum 20 mS/cm.
• Operation temperature: 0 to 80ºC.

FM 25-9 CURRENT VELOCITY METER:

• Measurement range: 0 to 40 m/s.
• Precision: 0.5% of the value.
• Resolution: 0.1 m/s.

FM 25-10 INFERENTIAL MULTISTREAM:

• Maximum flow Qmax.: 20 m³/h.
• Nominative flow Qn.: 10 m³/h.
• Minimum flow Qmin.: 200 l./h.
• Sensibility: 48 l./h.
• Minimum reading: 0.05 l.
• Maximum reading: 1000000 m³
• Maximum pressure Pmax.: 16 bar.

FM 25-11 Broad crested weir

FM 25-12 Crump weir

FM 25-13 “H” flume

FM 25-14 Washington flume

FM 25-15 Channel for FM 25-10, FM 25-11, FM 25-12, FM 25-13 and FM 25-14

FM 25-16: DIGITAL MANOMETER

• Differential pressure manometer. 2 measure scales,
• Ranges: 0 to 199.9 mbar.
• 0-2000 mbar.
• Precision: 0.15% above the range.

FM 25-17 HOOK AND POINT GAUGE

Auxiliary supply box (for FM 25-7, FM 25-5 and FM 25-8)
Reference flow meter permanently fitted: a turbine flow meter or an electro-magnetic meter.
Quick and easy removal of pipes with test flow meters for evaluation and inspection
Meters can be used independently to support research or student project work.

HYDRAULICS BENCH

• Mobile hydraulic bench, made in polyester reinforced with fibreglass, and mounted on wheels for mobility.
• Centrifugal pump, 0.55 KW, 2.5 Bar, 150 l. /min., single phase 220V./ 50Hz or110V./ 60Hz. Pump breaker starting.
• Sump tank capacity: 165 litres.
• Small channel: 8 litres.
• Flow measurement: volumetric tank, gauged from 0 to 7 litres for low flow values and from 0 to 40 litres for high flow values.
• Remote hand-operating dump valves in the base of the volumetric tank.
• Level tube with a scale that shows the water level in the upper tank.

Flow stilling baffle for reducing the turbulence rate.
Manufactured with corrosion resistant materials ensuring a long life of the unit. Safety and contact light.
Cables and Accessories, for normal operation