An orifice is a hole drilled into a tank's bottom or side that has a closed border and can be used to discharge fluid. A mouthpiece is a brief tube that is attached to a tank's circular hole of the same size to allow liquids to be expelled through it. Using an orifice and a mouthpiece, you can gauge the flow of liquid. The tool's purpose is to assess the mouthpiece's & orifice's co-efficient of discharge.

The device comprises of a supply tank with a universal fixture for attaching an orifice or mouthpiece attached to the side of it. The water supply tank was topped off using a centrifugal pump. A by pass valve located at the pump discharge regulates head over the orifice/mouthpiece. To measure the discharge, a measuring tank is offered. It is possible to gauge the X and Y coordinates of the jet coming from the orifice, which is used to determine the orifice's Cv.

SPECIFICATIONS:

•  Supply Tank – 0.4 X 0.3 X 0.5m height
•  Orifice – 8mm and 10 mm.
•  Mouthpiece
•  LID = 4
• L/D = 1
•  Bordas mouthpiece.
•  Convergent mouthpiece.
•  X-Y gauge for orifice jet co-ordinates.
•  Measuring tank of suitable capacity OR a calibrated water flow meter.
•  Sump tank of suitable capacity.
• 0.5 HP pump with valve. 

A technical manual accompanies the unit.

SERVICES REQUIRED:

•  Flow surface 2 mtrs. X 1 mtr. X 1.5 mtrs. height.
•  230 Volts, 5 Amp. Stabilized AC. Power Supply