Armfield Engineering Education

FLUID MECHANICS

F1-10 Accessory
F1-21 Flow Meter Demonstration - Issue 19

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This accessory is designed to introduce students to three basic types of flow meter.

Order Specification |
Description |
Technical Details |
Demonstration Capabilities

| Shipping Specification and Dimensions

ORDERING SPECIFICATION

• Venturi meter, variable area meter and orifice plate with control valve

• Pressure tappings to measure head loss from each meter

• Supplied with manometer board with eight tubes

• Quick release fitting for easy connection to hydraulics bench

• Educational Software available as an option

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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 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.

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Technical Details

Technical Details
item	value
Manometer range:	0 to 440mm
Number of manometer tubes:	8
Orifice plate diameter:	20mm
Variable area meter:	2 to 20 litres/min
Venturi dimensions:	-Throat diameter: 15mm -Upstream pipe diameter: 31.75mm -Upstream taper: 21° inclusive -Downstream taper: 14° inclusive