A metal tube variable area flow meter is a device used to measure the flow rate of gases and liquids. This type of flow meter consists of a metal tube with a float inside that is suspended in the tube. As flow rate increases, the float will move up the tube, and as flow rate decreases, the float will move down the tube. The float is connected to a scale or pointer that is used to read the flow rate.
The metal tube variable area flow meter is a simple and reliable type of device that is used in many different industries. It is particularly useful in the oil and gas industry, where it is used to measure the flow rate of liquids in pipelines and wells. It is also used in water treatment plants to measure the flow rate of water and wastewater.

The metal tube variable area flow meter is a rugged and durable device that is designed to withstand high pressures and temperatures. It works best for clean fluids and can be used with a variety of materials including stainless steel, brass, and other metals. The device can be adjusted to suit the flow rate and pressure of the liquid or gas being measured, making it highly versatile.
The metal tube variable area flow meter is a low-cost, low-maintenance device that is easy to install and use. It has a long life expectancy and can be used in a wide range of applications. This device can be found in many industrial settings and is an essential part of any process that requires accurate measurements of flow rate.
Below are the best 5 Metal Tube Variable Area Flow Meter Providers 2023
1, Silverinstruments

Website: https://www.silverinstruments.com/
Silver Automation Instruments provides a variety of process instruments for a variety of applications, including agriculture, water treatment, factory control, oil and gas production, and the power sector. They are also used in large installations worldwide, and their instruments are able to meet a variety of standards that are intended to ensure quality, safety, and industrial quality.
Through close ties with Nanjing University of Science and Technology and Chang Zhou University, they stay abreast of technological advancements in instrumentation. To achieve ISO9001:20008 certification, their products undergo stringent quality control procedures. Because of the company’s highly qualified staff and strong technical abilities, several patent certificates for process instrumentation have been obtained.
2, Yuyao Kingtai Instrument Co., Ltd.

Website: https://kingtai.en.alibaba.com/
YUYAO KINGTAI INSTRUMENT CO.,LTD was founded in 1989 and specializes in industrial instrumentation research, development, manufacture, sales, and service. KINGTAI is one of the draftsman of national inspection regulationJJG257-2007《ROTAMETER》, has the National Technical Supervision issued by the manufacturing meter license, certificate number for the Zhejiang system 02810146.and it is a high-tech enterprise in Ningbo, the production of products have passed ISO9001 international quality management system certification. The major products they manufacture are flowmeters, pressure gauges, and solenoid valves. The largest acrylic flowmeter manufacturer in the world. Oxygen flowmeter for concentrator is featured products of KINGTAI, They use Euramerican’s experience in oxygen flowmeter’ s production process and detection Means, they continuous attention to excellence whether the appearance, accuracy or other technical, therefore the qualities of their products enjoy a high reputation in Euramerican’s oxygen concentrator manufacturing industry.
3, Ningbo KIO Flow Instruments Co., Ltd.

Website: https://flowmeter.en.alibaba.com/
Since 1991, the company has been a leading manufacturer of flow instruments and has been active in this field for over 20 years through its various subsidiaries. This company mainly manufactures electromagnetic flowmeters, paddle wheel and turbine transducers, battery-powered electromagnetic flowmeters, and electromagnetic water flowmeters, which are the main products that they produce.
4, Q& T Instrument Co., Ltd.

Website: https://qtyb.en.alibaba.com/
In 2005, Q&T Instrument founded itself as a High-Tech Enterprise that integrates R&D, manufacturing, and marketing. There are five business units in the company, including liquid flow, gas flow, intelligent water meter, level meter, and flow testing device, which occupy 69000 square meters.
By offering one-stop purchasing service platform, Q&T covers 12 products series: electromagnetic flow meter, vortex flow meter, liquid / gas turbine flow meter, ultrasonic flow meter, thermal mass flow meter, gas turbine flow meter, precession vortex flow meter, coriolis mass flow meter, PD flow meter, intelligent water meter, ultrasonic & radar level meter, flow testing device etc.
5, Holykell Technology Company Limited

Website: https://holykell.en.alibaba.com/
The company was founded in 2001. The company has developed and sold submersible level sensors, ultrasonic level sensors, smart wireless solutions, electronic pressure switches, and air differential pressure sensors. The majority of HOLYKELL’s employees hold a bachelor’s degree or higher. The company has more than 120,000 customers worldwide and exports its products to 175 countries in Europe, North America, Australia, Africa, and South East Asia. The new products they have developed have the advantages of being small, temperature-resistant, stable, and reliable in the petrochemical industry. There are several national patents held by HOLYKELL.