You Professional Vortex Flowmeter Suppliers!
Dongyi Company will be a professional manufacturer of liquid level meters, flow meters, online water quality analyzers and pressure transmitters integrating R&D, design, production, sales and after-sales.
Why Choose Us
Our Factory
The company has a factory building of nearly 2,000 square meters and is professional There are more than 10 technical staff and more than 20 utility model patents.
Production Equipment
Our production facilities are equipped with advanced tools, including ultrasonic and radar testing devices, laser welding equipment, flow calibration devices, pressure debugging equipment, high and low temperature aging boxes, and circuit aging devices.
Our Certificates
We hold several certifications, including utility model patents, design patents, software works, and quality management system certifications.
Vortex Flowmeter - Overview
The vortex flowmeter is a broad-spectrum flow meter which can be used for metering, measurement and control of most steam, gas and liquid flow for a very unique medium versatility, high stability and high reliability with no moving parts, simple structure and low failure rate.
Product Specification
We offer the following Specifications:
|
Accuracy |
1.00% |
Output method |
4-20mA output and pulse output |
|
Repeatability |
0.33% |
Communication method |
RS485 communication protocol or Hart communication protocol can be selected |
|
Nominal diameter |
DN15~DN300 |
Connection method |
Flange connection or flange clamp (clamp type). |
|
Power supply |
+12VDC~36VDC, or 3.6V lithium battery |
Body material |
304 stainless steel; |
|
Display |
LCD display, displaying parameters such as instantaneous flow rate, cumulative total amount, frequency, etc |
Detection probe |
316L |
|
Medium humidity |
Medium temperature M-type ≤ 280 ℃, high temperature H-type ≤ 350 ℃ |
Rated pressure |
PN1.6 (standard) PN2.5, PN4.0,PN6.4MPA |

Inline vortex flow meters
Inline vortex flow meters, also known as wafer-style meters, are directly installed in the pipeline. They feature a compact design and are suitable for applications with limited space. The streamlined construction ensures minimal pressure drop, making them ideal for high-flow applications.
Insertion vortex flow meters
Insertion vortex flow meters is inserted into the pipeline through a tap or flange. These meters are versatile and can be used in pipes of various sizes. They offer flexibility in terms of installation, as they can be easily adjusted or repositioned as per the flow conditions.Insertion meters are cost-effective and suitable for applications where the pipeline cannot be modified or shut down for installation.
Advantages of Vortex Flowmeter
Versatility These flow meters are highly versatile, capable of effectively measuring the flow of liquid, gas, or steam. This adaptability makes them invaluable in diverse industrial settings.
Durability This model has few moving parts. This design simplicity means there's less room for failure, resulting in low maintenance and a reduced risk of malfunction.
Independence from temperature and pressure fluctuations. Vortex flow meters can measure flow rates independently of temperature and pressure fluctuations within the system. They provide consistent and reliable data even in dynamic conditions.
No conductivity requirement Unlike some flow measurement technologies, vortex meters do not require a specific level of conductivity in the flow media. This makes them a great solution for deionized water systems.
Low setup cost: These meters are cost-effective to install. That feature makes them especially attractive for businesses looking to improve flow measurement without a significant financial outlay.
Application of Vortex Flowmeter
Industrial
In industrial process control, accurate flow measurement is essential for monitoring and regulating fluid movement. Vortex flow meters are widely used because they can measure both liquids and gases with high accuracy. Their ability to handle high pressures and temperatures makes them suitable for critical applications like chemical dosing, cooling water management, and compressed air monitoring.
01
Oil and Gas Industry
The oil and gas industry relies on precise flow measurement for safety and efficiency. Vortex flow meters are preferred because they can withstand harsh conditions, such as high pressures, extreme temperatures, and corrosive fluids. They are commonly used to measure natural gas, crude oil, and steam flow, offering reliable readings without frequent maintenance.
02
Chemical plants
Chemical plants use vortex flow meters to measure aggressive liquids, steam, and gas flows in production lines. Their non-moving parts design makes them resistant to wear, even when handling corrosive or abrasive chemicals. Proper vortex flow meter installation helps maintain measurement accuracy, especially in systems with variable flow rates or pulsating pressures.
03
Water and Wastewater
Vortex flow meters play a key role in water and wastewater management by providing accurate flow data for monitoring distribution networks, treatment processes, and discharge lines. Their ability to handle varying flow rates and tolerate impurities makes them suitable for measuring raw water, treated water, and even sludges.
04
Power Plants
In power plants, measuring fluid and steam flow is essential for maintaining system efficiency. Vortex flow meters are widely used for monitoring cooling water, fuel flow, and steam applications in boilers and turbines. Their ability to withstand high temperatures and pressures makes them ideal for energy-intensive processes.
05
Installation Recommendations
When installing a vortex flowmeter in an existing process where the flow range is not known, it is recommended to first make some approximate measurements (using portable pitot tubes or clamp-on ultrasonic devices). Otherwise, there is no guarantee that a line-size vortex meter will work at all.
The vortex meter requires a well-developed and symmetrical flow velocity profile, free from any distortions or swirls. This necessitates the use of straight up and downstream piping to condition the flow. The straight length of pipe must be the same size as the meter and its length should be about the same as required for an orifice installation with a beta ratio of 0.7. Most vortex flowmeter manufacturers recommend a minimum of 30 pipe diameters downstream of control valves, and 3 to 4 pipe diameters between the meter and downstream pressure taps. Temperature elements should be small and located 5 to 6 diameters downstream.
About half of all vortex meter installations require the "necking down" of oversized process piping by concentric reducers and expanders. Even if flow straighteners are installed, some straight (relaxation) piping will still be required.
Mating flanges (on the schedule 40 or schedule 80 mating piping) must have the same diameter and smooth bore as the flow meter. Weld neck flanges are preferred and reducing flanges should not be used. The inner surface of the mating pipe should be free from mill scale, pits, holes, reaming scores and bumps for a distance of 4 diameters upstream and 2 diameters downstream of the meter. The bores of the meter, the gaskets and the adjacent piping must be carefully aligned to eliminate any obstructions or steps.
Design Confirmation and Quotation: Our process begins when a customer sends us specific product details such as the specifications and dimensions of the product they want. We will provide a quote for the entire process according to customer requirements.
Sample Making: After agreeing the quotation, Our designers will make samples for you in the shortest time, after the samples are finished, we can send them to our customers by post for testing, or provide you some pictures for your reference.
Mass Production & QC: Once the samples are finalized, the design will be forwarded to our factory to start mass production. Our dedicated quality control team monitors every step of the process to ensure that every product meets our standards before it leaves the factory.
Delivery: Once the order has been manufactured, we will arrange for delivery of the product to the customer, thus completing the process.

Packaging & Delivery

Certificate

FAQ
We're well-known as one of the leading vortex flowmeter manufacturers and suppliers in China. Please feel free to buy high quality vortex flowmeter made in China here from our factory. Contact us for customized service.
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