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Notches are openings cut in metallic plates and are used for the purpose of measuring the discharge in stream. This apparatus is used to measure the coefficient of discharge of notches of various shapes.

The system is closed circuit:-

V - Notch of angle 600

Rectangular Notch of 100x100 mm

The apparatus consists of:

• A Centrifugal Monoblock Pump 1/2 HP Motor (ISI Kirlosker Make)
• S.S. Sump Tank 50 Ltr. to collect the water.
• S.S. Measuring Tank 30 Ltr fitted with piezometer tube to measure the discharge.
• Damper is used to collect the water in S.S. MEASURING TANK for certain time.
• Pipe & ISI mark Control Valve and regulating valves are used to circulate water.
• Bye-pass line is also used to regulate the discharge.
• This apparatus consists of a rectangular tank of 80 x 25 x 25 cm with rectangular opening at one end on which rectangular or V-Notch can be fitted with nuts.
• A pointer scale is used to measure the level of water in the tank.
• Powder coated paint — the tanks are well hence increase the life of tank.

Experimental capabilities:

• Determination of coefficient of discharge of:
  • 600 Notch,
  • Rectangular notch 100x100 mm