Orifice and Mouthpiece Apparatus

Orifice and Mouthpiece Apparatus Manufacturer

The Orifice and Mouthpiece Apparatus is used to determine the hydraulic coefficients of orifices and mouthpieces, the coefficient of discharge (Cd), coefficient of velocity (Cv), and coefficient of contraction (Cc). Both orifices and mouthpieces are connected to the side of a tank with a closed perimeter to discharge the fluid; a mouthpiece is a short tube fitted to a same-size circular opening in the tank so fluid discharges through it. A jet-collecting tank collects the discharge, and X-Y trajectory probes measure the jet coordinates, so Cd, Cc and Cv of the orifice and Cd of the mouthpiece can be determined.

Applications:

• Determining Cd, Cv and Cc for orifices and Cd for mouthpieces
• Studying jet trajectory and flow through small openings
• Fluid-mechanics and hydraulics laboratory teaching
• Engineering and polytechnic practical courses

Specifications:

Component	Detail
Set of orifices	4 mm & 8 mm (brass or acrylic)
Set of mouthpiece	10 mm dia (brass)
Trajectory probes	X-Y probe / 5 Nos. trajectory probes
Constant head tank	300 × 300 × 400 mm, MOC: Perspex
Sump tank	75 litres, MOC: SS-304 with matt buffing
Volumetric tank	40 litres, MOC: SS-304 with matt buffing
Pump	Monoblock type, 0–60 litre/min, 0.5 HP motor
Piping	With necessary valves and fittings
Timing	Digital stopwatch, 1/10 second accuracy
Included	Detailed technical manual and on-site training

FAQ:

• Q. What can you measure with this apparatus? 
• The discharge, velocity and contraction coefficients (Cd, Cv, Cc) of orifices and the discharge coefficient of mouthpieces.
• Q. What material is the tank? 
• The constant-head tank is Perspex; sump and volumetric tanks are SS-304.
• Q. Do you provide training and a manual? 
• Yes, a detailed technical manual and on-site training are included.

 

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