Applied Scientific Instruments Co., Ltd.

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Flow Meter Demonstration

หมวดหมู่สินค้า: F SERIES - FLUID MECHANICS
รหัส : F1-21
This accessory is designed to introduce students to three basic types of flow meter: Venturi meter / Variable area flowmeter (Rotameter) /Orifice plate /8 pressure tappings are connected and displayed on the manometer bank to visualise pressure profiles

18 เมษายน 2566

ผู้ชม 430 ผู้ชม

DESCRIPTION

The equipment 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 an 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 volumetrically calibrating each flow meter.

 

EXPERIMENTAL CONTENT

  • To investigate the operation and characteristics of a Venturi meter, variable area meter and orifice plate including accuracy and energy losses
  • Comparison of pressure drops across each flow measurement device
  • Calibrating each flow meter using the volumetric measuring tank of the bench
  • Application of the Bernoulli equation for incompressible fluids

 

TECHNICAL SPECIFICATIONS

Manometer range: 0-400mm
Number of manometer: tubes 8
Orifice plate diameter: 20mm
Variable area meter: 2-20 l/min

VENTURI DIMENSIONS

Throat diameter: 15mm
Upstream pipe diameter: 31.75mm
Upstream taper: 21° inclusive
Downstream taper: 14° inclusive

 

 

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