Difference between orificemeter and venturimeter [With PDF]

Want to know about the Difference between orificemeter and venturimeter?

Then you are on the right path. Here you will know the detailed comparison between these two devices.

So, I invite you to come with me and feel comfortable while I start the engine of this knowledgeable journey here at Engineers Rail.

So, Without further delay, Let’s dive in.

Before jumping in the title of the article, It would be nice to know about these devices briefly.

So, here we go…

What is an Orifice meter?

• Basically, an Orifice meter is referred as a type of flow meter that uses differential pressure measurement techniques and this helps to get discharge rate as well as calculate the flow rate.
• In short, Orifice meters is a device to measure the flow rate or discharge rate of any fluid. Oficemeter is used mainly in robust applications and an Orifice meter works based on the differential measurement technique.

Diagram of Orificemeter–

Now,

What is Venturimeter?

Volumatricmeter is a discharge measuring device, it measures volumetric flow.

Here, You may ask what is volumetric flow?

So, volumetric flow is the amount of the fluid flowing or volume of fluid flowing through the media per unit of time. In short, the volume of the flowing fluid per unit of time.

Diagram of venturimeter

Hence, knowing briefly about these two measuring devices above now let’s move on to the comparison section between these two devices, keeping your purpose of landing here.

So, here it is-

Difference between orificemeter and venturimeter-

Here is the side-by-side comparison of the orifice meter and venturimeter in the table down below-

	Orificemeter	Venturimeter
1.	Generally used to measure the liquid flow rate	Used to measure the flow rate of fluids
2.	Cheap	Expensive
3.	Easy to install	Fabrication is highly technical
4.	Simple Construction	Difficult construction
5.	More head loss	Less head loss
6.	High power losses	Less power losses
7.	Highly flexible	Less flexible
8.	Small in size	Large in size
9.	Less costly	Higher cost
10.	The coefficient of discharge is low	The coefficient of discharge is high
11.	Less space required	Large space needed
12.	Less accuracy	High accuracy
13.	Pressure loss	Balanced pressure
14.	Orifice meter consists of double-tapping	Venturi meter consists of single tapping
15.	Used to increase the pressure	Also used to increase the pressure
16.	5:1 Turn Down ratio	10:1 Turn Down ratio
17.	Low installation cost	High installation cost

These were the major 17 differences between the orifice meter and venturimeter which are given in the table above.

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Difference between orificemeter and venturimeter pdf-

 

 

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