When it comes to measuring the flow of fluids in pipelines, two common types of flowmeters are full-bore and insertion pipeline flowmeters. As a leading supplier of pipeline flowmeters, I often get asked about the differences between these two types of flowmeters. In this blog post, I'll explain the key differences between full-bore and insertion pipeline flowmeters, their advantages and disadvantages, and when to use each type.
What is a Full-Bore Pipeline Flowmeter?
A full-bore pipeline flowmeter, as the name suggests, is installed directly into the pipeline, replacing a section of the pipe. The flowmeter body becomes an integral part of the pipeline, and the fluid flows through the meter. Full-bore flowmeters are typically used in applications where high accuracy and a wide turndown ratio are required.
One of the main advantages of a full-bore pipeline flowmeter is its high accuracy. Since the entire flow of the fluid passes through the meter, it can provide a very accurate measurement of the flow rate. Full-bore flowmeters also have a wide turndown ratio, which means they can accurately measure flow rates over a wide range. This makes them suitable for applications where the flow rate can vary significantly.
Another advantage of full-bore flowmeters is their ability to handle high flow rates. Because the meter is installed directly in the pipeline, it can handle large volumes of fluid without causing significant pressure drop. This makes them ideal for applications in industries such as oil and gas, water treatment, and chemical processing, where high flow rates are common.
However, full-bore pipeline flowmeters also have some disadvantages. One of the main disadvantages is their high cost. Since the meter replaces a section of the pipeline, it requires more material and installation time, which can increase the overall cost of the system. Full-bore flowmeters also require more space for installation, which can be a limitation in some applications.
What is an Insertion Pipeline Flowmeter?
An insertion pipeline flowmeter is installed through a small opening in the pipeline wall, with the sensing element inserted into the flow stream. Insertion flowmeters are typically used in applications where cost, ease of installation, and flexibility are important factors.
One of the main advantages of an insertion pipeline flowmeter is its low cost. Since the meter does not require the replacement of a section of the pipeline, it is generally less expensive than a full-bore flowmeter. Insertion flowmeters are also easier and faster to install, which can reduce installation costs and downtime.
Another advantage of insertion flowmeters is their flexibility. They can be easily installed in existing pipelines without the need for major modifications. This makes them suitable for applications where retrofitting is required or where the pipeline layout may change in the future.
However, insertion pipeline flowmeters also have some limitations. One of the main limitations is their lower accuracy compared to full-bore flowmeters. Since the sensing element is only inserted into a small portion of the flow stream, it may not accurately represent the entire flow rate. Insertion flowmeters also have a more limited turndown ratio, which means they may not be suitable for applications where the flow rate can vary significantly.


When to Use a Full-Bore Pipeline Flowmeter
Full-bore pipeline flowmeters are typically used in applications where high accuracy, a wide turndown ratio, and the ability to handle high flow rates are required. Some common applications for full-bore flowmeters include:
- Oil and Gas Industry: In the oil and gas industry, full-bore flowmeters are used to measure the flow of crude oil, natural gas, and refined products. High accuracy is essential in these applications to ensure accurate billing and custody transfer.
- Water Treatment Plants: In water treatment plants, full-bore flowmeters are used to measure the flow of water in the treatment process. Accurate flow measurement is important to ensure the proper operation of the treatment equipment and to meet regulatory requirements.
- Chemical Processing Industry: In the chemical processing industry, full-bore flowmeters are used to measure the flow of various chemicals and fluids. High accuracy and the ability to handle high flow rates are important in these applications to ensure the quality and efficiency of the production process.
When to Use an Insertion Pipeline Flowmeter
Insertion pipeline flowmeters are typically used in applications where cost, ease of installation, and flexibility are important factors. Some common applications for insertion flowmeters include:
- HVAC Systems: In HVAC systems, insertion flowmeters are used to measure the flow of water or air in the heating and cooling systems. Low cost and ease of installation are important in these applications to keep the overall cost of the system down.
- Industrial Wastewater Treatment: In industrial wastewater treatment plants, insertion flowmeters are used to measure the flow of wastewater. Flexibility and ease of installation are important in these applications to accommodate changes in the pipeline layout or treatment process.
- Agricultural Irrigation: In agricultural irrigation systems, insertion flowmeters are used to measure the flow of water in the irrigation pipes. Low cost and ease of installation are important in these applications to make the system affordable for farmers.
Our Z-6000 Series Pipeline Flowmeter
At our company, we offer a wide range of pipeline flowmeters, including both full-bore and insertion flowmeters. One of our popular products is the Z-6000 Series Pipeline Flowmeter. This series of flowmeters is available in both full-bore and insertion configurations, providing customers with the flexibility to choose the right flowmeter for their application.
The Z-6000 Series Pipeline Flowmeter offers high accuracy, a wide turndown ratio, and excellent reliability. It is suitable for a variety of applications, including oil and gas, water treatment, chemical processing, and more. With its advanced technology and user-friendly design, the Z-6000 Series Pipeline Flowmeter is a cost-effective solution for measuring the flow of fluids in pipelines.
Conclusion
In conclusion, the choice between a full-bore and an insertion pipeline flowmeter depends on several factors, including accuracy requirements, flow rate, cost, ease of installation, and flexibility. Full-bore flowmeters are ideal for applications where high accuracy and the ability to handle high flow rates are required, while insertion flowmeters are more suitable for applications where cost, ease of installation, and flexibility are important factors.
If you're looking for a reliable and accurate pipeline flowmeter for your application, we invite you to contact us for more information. Our team of experts can help you choose the right flowmeter for your needs and provide you with a customized solution. Whether you need a full-bore or an insertion flowmeter, we have the products and expertise to meet your requirements.
References
- ISO 5167 - Measurement of fluid flow by means of pressure differential devices inserted in circular cross - section conduits running full
- ASME MFC - 3M - Measurement of Fluid Flow in Closed Conduits by Means of Orifice, Nozzle, and Venturi
- Flow Measurement Handbook: Industrial Designs and Applications by Richard W. Miller
