Skip navigation

Armfield Engineering Education

Armfield limited engineering education equipment FLUID MECHANICS

F1-10 Accessory
F1-17a Orifice Discharge - Issue 19

The Orifice Discharge accessory enables full analysis of the flow through five different orifices over a range of flow rates.

ORDERING SPECIFICATION

• Cylindrical glass tank with orifice fitted in base

• Four interchangeable orifices

• Pitot tube and knife edge to measure jet velocity and diameter

• Quick release fitting for easy connection to hydraulics bench

• Educational Software available as an option

TOP

Description

The Orifice Discharge accessory consists of a cylindrical glass tank which has an orifice fitted in the base. A traverse assembly is provided which enables a pitot tube to be positioned anywhere in the jet.

Attached to this pitot tube is a sharp blade which can be traversed across the jet to accurately measure the jet diameter and the vena contracta diameter and so determine the contraction coefficient.

The pitot head and the total head across the orifice are shown on manometer tubes adjacent to the tank. In addition to the standard orifice, supply includes four additional orifices.These are supplied in an attractive storage case. A label inside the lid gives dimensional details of each orifice.

TOP

Technical Details

Technical Details
item value
Standard orifice:
sharp-edged 13mm diameter
Max. head:
365mm
Traverse mechanism: lead screw with adjusting nut calibrated 0.1mm per division
TOP

Demonstration Capabilities

> Determining the contraction and velocity coefficients

> Calculating the discharge coefficient

TOP

Requirements

F1-10 Hydraulics Bench

TOP

Shipping Specification

Individual accessories on request

TOP

Overall dimensions

Individual accessories on request

TOP