Discharge Through Venturimeter & Orificemeter

Note: Price is based on given specs. For other specifications, please submit an inquiry.

Discharge through Venturimeter and Orificemeter is one of the most important topics in fluid mechanics and flow measurement. Both devices are widely used to measure the rate of flow (discharge) of liquids flowing through closed pipes. These instruments are essential in engineering laboratories, industrial pipelines, water supply systems, chemical plants, oil & gas industries, and research institutions.

Venturimeter and Orificemeter work on the principle of Bernoulli’s theorem, which explains the relationship between pressure energy, velocity energy, and potential energy of a flowing fluid. Due to their simplicity, reliability, and accuracy, these flow-measuring devices are globally accepted in academic and industrial sectors.

Trusted platforms like scilabex.com and Scilabstore provide high-quality Venturimeter & Orificemeter apparatus with assured quality, PAN India delivery, and international shipping, making them a reliable choice for laboratories and industries worldwide.

What is Discharge Through Venturimeter & Orificemeter?

Discharge refers to the quantity of fluid flowing per unit time through a pipe. In Venturimeter and Orificemeter, discharge is calculated by measuring the pressure difference created due to change in cross-sectional area of the pipe.

• Venturimeter uses a gradually converging and diverging section.

• Orificemeter uses a thin orifice plate with a sharp-edged hole.

The pressure difference between upstream and downstream sections helps determine the flow rate accurately.

Principle of Venturimeter & Orificemeter

Both devices operate on Bernoulli’s principle, which states:

In a steady flow of incompressible fluid, the sum of pressure energy, kinetic energy, and potential energy remains constant.

When fluid flows through a restriction:

• Velocity increases

• Pressure decreases

This pressure drop is used to calculate discharge.

Venturimeter: Construction and Working

Construction of Venturimeter

A Venturimeter consists of:

1. Converging Cone – Gradually reduces area to increase velocity

2. Throat – Minimum cross-sectional area

3. Diverging Cone – Gradually increases area to recover pressure

4. Pressure Tappings – At inlet and throat

Working of Venturimeter

• Fluid enters with uniform velocity

• Velocity increases in converging section

• Maximum velocity occurs at throat

• Pressure difference is measured

• Discharge is calculated using Bernoulli’s equation

Venturimeters are known for high accuracy and very low energy loss.

Orificemeter: Construction and Working

Construction of Orificemeter

An Orificemeter consists of:

• A thin orifice plate with a circular hole

• Mounted between two pipe flanges

• Pressure taps provided upstream and downstream

Working of Orificemeter

• Fluid passes through the orifice

• Velocity increases suddenly

• Pressure drops sharply

• Pressure difference is measured

• Discharge is calculated

Orificemeters are simple, compact, and economical, making them suitable for many industrial applications.

Discharge Formula

Venturimeter Discharge Formula

$$Q = C_d \times \frac{A_1 A_2}{\sqrt{A_1^2 - A_2^2}} \times \sqrt{2gh}$$

Orificemeter Discharge Formula

$$Q = C_d \times A \times \sqrt{2gh}$$

Where:

• $Q$ = Discharge

• $C_d$ = Coefficient of discharge

• $A$ = Area of orifice

• $g$ = Acceleration due to gravity

• $h$ = Pressure head difference

Key Features of Venturimeter & Orificemeter

• Accurate flow measurement

• Easy installation in pipelines

• Suitable for laboratory and industrial use

• Compatible with manometers and pressure sensors

• Durable construction for long life

Advantages of Venturimeter

• Very low head loss

• High efficiency

• Accurate and reliable results

• Suitable for large diameter pipes

Advantages of Orificemeter

• Simple design

• Low cost

• Easy replacement

• Compact size

Comparison Between Venturimeter & Orificemeter

Applications of Venturimeter & Orificemeter

1. Engineering Laboratories

• Fluid mechanics experiments

• Practical demonstrations

• Academic research

2. Industrial Applications

• Chemical industries

• Oil & gas pipelines

• Power plants

• Pharmaceutical industries

3. Water & Utility Systems

• Water supply networks

• Irrigation pipelines

• Pumping stations

Countries Where These Devices Are Widely Used

Venturimeters and Orificemeters are globally used in:

• India

• USA

• Canada

• Germany

• UK

• UAE

• Saudi Arabia

• Australia

• Singapore

• South Africa

With international delivery support, Scilabstore and scilabex.com serve global academic and industrial clients efficiently.

Why Choose Scilabex & Scilabstore?

• ✔ Trusted scientific equipment suppliers

• ✔ High-quality fluid mechanics lab equipment

• ✔ PAN India delivery available

• ✔ International shipping supported

• ✔ Products meeting global standards

• ✔ Reliable customer support

scilabex.com and Scilabstore are recognized as trusted companies, delivering precision-engineered laboratory equipment to customers across India and abroad.

Frequently Asked Questions (FAQs)

Q1. Which is more accurate, Venturimeter or Orificemeter?

Venturimeter is more accurate due to lower energy loss.

Q2. Which device is cheaper?

Orificemeter is more economical and compact.

Q3. Are these devices suitable for laboratories?

Yes, both are essential apparatus in fluid mechanics labs.

Q4. Can these be used for industrial flow measurement?

Yes, they are widely used in various industries.

Q5. Is international delivery available?

Yes, Scilabex and Scilabstore provide PAN India & international delivery.