3. An orifice meter is a device which used to measure
the flow rate of a gas or a fluid.
The orifice meter works on the principle Bernoulli’s
theorem.
It is also known as Pipe orifice and orifice plate.
6. Advantages
• Very cheap,
• Direction possibility can be vertical, horizontal, and inclined.The space required
for installation is less.
• It is usually thin enough to fit between an existing pipe.
• The maintenance cost is low.
• It offers very less pressure drop.
• The construction and design of this orifice meter are very simple.
• It is capable to determine a wide range of flow rates that the main advantages.
7. Disadvantages
• Orifice meter downstream pressure can not be recovered in
Orifice Meters.
• It requires a single phase of liquid.
• The orifice accuracy can be affected by the viscosity, density,
and pressure of the fluid.
• It requires a straight pipe for good precision and accuracy.
• The 40% to 90% overall head loss of the differential pressure.
• The obtained coefficient of discharge is low.
