INTRODUCTION :
Measurement of flow constitutes an essential part in all flow systems. The fluid flow in open channel definitely requires some system to measure the quantity of fluid passing through, Direct measurement of flow either gravimetric or volumetric is the most accurate method.
An apparatus for determination of co-efficient of discharge of orifices and mouthpieces consisting of a storage Tank, Collecting Tank, supply Tank and Pump (0.5HP) for lifting water. Control valves and measuring instruments like stop clock, scale X-Y coordinate measuring arrangement etc. will be provided.

* Set of orifices : 10mm. & 15mm.
* set of Mouthpiece : Dia. 10mm. L/D 2.5 and 4

This is the basic module required by all the experimental setups.

1. STORAGE TANK - :
Made out of fibreglass for corrosion prevention suitably mounted on a sturdy frame support. Size 100cm x 70cm x 23cm (approx.)

2. COLLECTING TANK - :
Made out of fibreglass for corrosion resistance, mounted on the top frame of the storage tank. Size of the collecting Tank is 55cm. x 45cm. x 40cm. Capacity approx. 60 litres, fitted with drain valve 1” size piezo meter Tube with calibrated lits. Marking scale.

3. MONOBLOCK PUMP
Monoblock 1ph, ½ HP pump shall be provided with the setup which shall be mounted on the base plate. Necessary piping with by-pass valve and suction piping are provided. The connection for the test equipment is made by flexible Hose-pipe.

 The present equipment is a set-up used to study the performance of Orificemeter & Mouth Piece. Any of the device can be adopted and the performance can be studied.
The equipment consists of a main tank to which the water is supplied. At the bottom of this main tank an oil seal is adopted. Through this oil seal a pipe slides up or down. The water over flows through this pipe & a constant head is maintained over the flow measurement device. A piezometer tube at one side of the tank shows the head. This head is measured by scale. The exit water through the meter is guided through a channel in to the measuring tank. The supply to the unit can be adjusted by the gate valve in the supply line..