V-Cone DP Flow Meters: Precision in Gas, Liquid, and Steam Flow Measurement

Flow measurement is an essential aspect of various industrial processes, ensuring the effective and efficient use of resources. There are numerous types of flow sensors available, each with its unique advantages and drawbacks. However, V-Cone Differential Pressure (DP) flow meters have emerged as a popular choice for measuring the flow of gasses, liquids, and steam in various industries.

V-Cone DP Flow Meters: A Brief Overview

V-Cone DP flow meters utilize the principles of differential pressure measurement to determine the flow rate of fluids. The V-Cone, a cone-shaped object placed in the flow path, creates a controlled disturbance, leading to a pressure differential. The flow rate is accurately calculated by measuring this differential pressure and applying specific equations. The V-Cone DP flow meters are highly versatile, capable of handling various flow conditions for gasses, liquids, and steam.

Comparative Advantages of V-Cone DP Flow Meters

Accuracy and Reliability

V-Cone DP flow meters have a reputation for exceptional accuracy and reliability, with typical accuracy rates ranging from ±0.5% to ±1.0%. This precision is attributed to the flow conditioning effect of the V-Cone, which reduces the need for a long upstream straight pipe run, minimizing the impact of flow disturbances. The result is consistent and reliable measurements across a broad range of applications.

Versatility

V-Cone DP flow meters offer unparalleled versatility, accommodating various fluids, including gasses, liquids, and steam. This adaptability enables industries to use a single type of flow meter for numerous processes, reducing the need for multiple flow measurement devices and simplifying maintenance and calibration procedures.

Low-Pressure Loss

The design of V-Cone DP flow meters ensures a low permanent pressure loss, providing energy savings and reducing the overall cost of operation. The cone's shape and position create a stable, self-conditioning flow profile, reducing the pressure loss associated with other flow sensors.

Wide Turndown Ratio

V-Cone DP flow meters boast a wide turndown ratio, often reaching 10:1 or higher, allowing for accurate measurement over a broad range of flow rates. This broad operating range enables industries to optimize their processes, reducing waste and ensuring efficient resource utilization.

Low Maintenance and Longevity

The robust design and construction of V-Cone DP flow meters contribute to their low maintenance requirements and extended service life. With no moving parts, V-Cone flow meters are less prone to wear and tear, reducing the need for frequent maintenance and replacement. The V-Cone's resistance to erosion and debris buildup makes it suitable for harsh environments and applications involving corrosive or abrasive fluids.

V-Cone DP flow meters offer numerous advantages over other flow sensors, making them a preferred choice for measuring the flow of gasses, liquids, and steam in various industries. With exceptional accuracy, reliability, versatility, low-pressure loss, wide turndown ratio, and low maintenance requirements, V-Cone DP flow meters have become indispensable for optimizing industrial processes and ensuring efficient resource utilization.

McCrometer, a leading flow instrumentation company, has succeeded remarkably with its V-Cone flow meter. Leveraging over six decades of industry expertise, McCrometer has designed the V-Cone flow meter to deliver unparalleled accuracy, reliability, and versatility in measuring gasses, liquids, and steam. The company's innovative approach to flow measurement has made the V-Cone a popular choice in various industries, including oil and gas, chemical, power, and water management. Through continuous research and development, McCrometer remains committed to providing advanced flow measurement solutions that meet the ever-evolving needs of its customers.

Process Technology, Inc.

https://process-tech.com

801-264-1114

Advanced Differential Pressure Based Flow Metering Technology

McCrometer's V-Cone Flow Meter, an advanced dP meter, is used in many applications in power plants, paper mills, chemical and petrochemical plants, metals and mining, and food & beverage production. Where accuracy, low maintenance and cost are critical, the McCrometer V-Cone is the perfect solution.

McCrometer's V-Cone® Flow Meter is an advanced differential pressure instrument, which is ideal for use with liquid, steam or gas media in rugged conditions.  Designed for mild to harsh operating environments, and for a wide variety of fluids, the V-Cone combines exceptional performance, low maintenance and long life for superior value. It consistently outperforms traditional DP devices and other flow technologies.

For more information, contact Process Technology by calling 801-264-1114 or by visiting their web site at https://process-tech.com.

The Unique Challenges of Measuring Steam Usage for Colleges and Universities

ExactSteam™ V-Cone® Flowmeter

Steam poses a unique challenge for colleges and universities.

Many schools want to accurately track, and then internally bill, for steam usage in each of their buildings as part of a wider effort to improve resource management. However, traditional steam metering technologies tend to be a less than optimal choice.

Most times, it’s necessary to place campus steam meters in the basements of buildings where there isn’t a lot of room for piping. That causes issues because flow meters typically require significant runs of straight pipe upstream and downstream of the meter to work correctly.

School administrators also encounter issues by trying to measure steam usage during the low-demand summer months. Common vortex meters, which contain a shedder bar mounted across the diameter of a pipe to measure flow, work well at higher flows. When it comes to low flows, however, they can stop working completely (i.e., low flow cutoff problems). Differential pressure (DP) flow meters coupled with the proper electronics, by comparison, can push the low flow cutoff value downward. However, most DP meters can’t get around the straight-run requirements.

McCrometer’s ExactSteam solution is designed to overcome those hurdles.

The ExactSteam V-Cone Flowmeter works well with short straight-pipe runs, so it addresses the lack of space issues faced by colleges and universities. It also measures steam across the entire range, performing better at lower flows.

The High Cost of Low Flow Cutoff

Steam system operators can pay a steep price for generating product that passes through a meter but fails to get measured. Also known as low flow cutoff, those losses are a function of the turndown ratio of flow meters. The ratio — defined as the maximum measurement capability of a device compared to its minimum — dictates how wide a flow spectrum can be measured. On campuses, this creates a major issue because demand for steam in the colder weather can be extremely high compared to off-peak times.

ExactSteam is a DP-style flow meter that can be adjusted for colleges during winter months. It contains McCrometer’s established V-cone flow meter combined with a newer electronics package to aid in the downward adjustment of the turndown ratio. A growing number of college campuses, especially larger schools, are seeing the benefits of ExactSteam and adopting the technology.

Some examples include:

Case Study #1 - An East Coast University Steam Operation

This school designed its system to measure from 84,000 lbs/hr to 8,400 lbs/hr, which accounted for a 10:1 turndown ratio and velocities of 420’/second to 42’/second. After the meter was installed, system operators determined their actual flow range was 20,000 lbs/hr to 1,000 lbs/hr (a 20:1 turndown ratio) and velocities were 100’/second to 5’/second.

Because flow rates were overstated, the university dropped below the low flow cutoff and wasn’t measuring at all during the off-season.

The solution: Purchase another meter with a larger cone that would produce more differential pressure at the correct flows. The school has since installed an ExactSteam V-Cone Flowmeter.

Case Study #2 – A University Hospital Using Both Condensate And Steam Meters

During the winter, the steam meters were always measuring more steam than the condensate meters.  The difference was justified because the condensate meters were not capturing steam usage of the autoclaves.  However, during the summer, the condensate meters were measuring more than the steam meters, which was impossible.

The steam meter was designed for flows from 14,000 lbs/hr to 1,400 lbs/hr.  During the summer months the hospital flows frequently dropped below 1,400 lbs/hr, which was below the low flow cutoff.  It was also determined that their highest flow during the summer was 5,000 lbs/hr.  The hospital needed more turndown and a lower flow range.

The solution: The ExactSteam V-Cone Flowmeter was installed.  It was designed for flows from 6,000 lbs/hr to 300 lbs/hr and was able to fit in the basement between two elbows.

Well Positioned For Campus Use

Key aspects of McCrometer’s ExactSteam solution include: a complete flow meter for steam metering, factory-configured for energy metering or mass flow; the ability to measure saturated (dry), superheated, and unsaturated (wet) steam; the V-Cone acts as its own flow conditioner by disrupting all centralized flow disturbances; signal stability allows it to measure a wider range of flow than other meters, minimizing pressure loss; and minimum installation requirements, so retrofitting and new installations are easier.

Because of the inherent conflicts, traditional steam metering technologies are not a good fit for many colleges and universities. However, there are solutions available to campus steam system operators to capture readings from most — if not all — of their steam production, even in less than ideal conditions.

For more information about measuring steam usage on campuses and universities, contact Process Technologies, Inc. by calling 801-264-1114 or by visiting their web site at https://process-tech.com.

Reprinted with permission from McCrometer.

The McCrometer FPI Mag® Full Profile Insertion Flow Meter

The McCrometer FPI Mag® is ideal for capital or maintenance projects, retrofits and sites never before metered. The unique combination of accuracy, ease of installation and total cost savings make the FPI Mag® the perfect choice for a wide range of industrial applications.

The FPI Mag® meets or exceeds exacting industry standards of 0.5% accuracy with 3rd party testing verification. The multi-electrode design and unique operating principle delivers accuracy unmatched by other insertion meters and rivals the performance of full-bore mag meters.

The insertion design of the FPI Mag® allows for easy, hot tap installation, which allows the meter to be installed without interrupting service, de-watering lines, cutting pipe, welding flanges, or inconveniencing customers.

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GET MORE INFORMATION AND THE FPI MAG® BROCHURE FROM THE PTI WEBSITE 

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Process Technology, Inc.

https://process-tech.com

801-264-1114