Orifice Discharge Apparatus

Orifice Discharge Apparatus for Educational Laboratory.

Product Code:


Orifice Discharge Apparatus

The water drains vertically from a transparent supply tank through a nozzle due to the hydrostatic pressure. The velocity of the jet can be measured with a Pitot tube and a U-tube manometer. The jet diameter is measured with a micrometer. 5 easy to interchange nozzles are included. The water level can be set precisely using an overflow.

The water supply is provided either from the laboratory mains or using the (closed water circuit).

Learning Objectives / Experiments

· Experiments on the discharge jet (diameter, velocity)

· Determination of flow rate for various water heads

· Determination of flow rate coefficients

· Comparison between experiment and calculation


1. Discharge tank

2. l x w x h 400x400x700mm, 12kg

3. Plexiglass tank with overflow

4. Tube manometer 500mmWC

5. Maximum flow rate 14ltr/min

6. 5 exchangeable nozzles

7. Micrometer to determine the jet diameter

Technical Data

Discharge tank: Approx. 13ltr, overflow height: max. 400mm

Nozzles, d=12mm: 1x “channel”, 1x cone outlet, 1x inlet with orifice, 1x cone inlet, 1x rounded inlet

Dimensions and Weight

l x w x h : 400 x 400 x 700 mm

Weight : approx. 12 kg