News and Information

How to install the paddle flow switch?

A target flow switch is a type of mechanical flow switch, also known as a vane flow switch. When fluid strikes the vane, the vane pivots, changing the relative position of the magnet and reed switch, triggering the switch to close or open. Once the fluid flow is interrupted, the vane returns to its starting position, again triggering the reed switch. The mutual repulsion of the two magnets provides the force needed to reset the flow switch, and the switch returns to its previous state.

2023-04-14

Reasons for inaccurate measurement using target flow switches in pipeline systems?

Target flow switches are used in various pipeline systems, but inaccurate measurements may occur during use. This requires consideration of installation, daily use, and the quality of the target flow switch. Let's discuss the possible causes of inaccurate measurements in target flow switches.

2023-04-07

What do you know about electromagnetic flow meters?

When a conductor moves in a magnetic field, cutting the magnetic lines of force, an induced electromotive force (EMF) is generated. The direction of this induced EMF is perpendicular to both the magnetic field direction and the direction of the conductor's motion. The magnitude of this induced EMF is proportional to the speed of motion and the magnetic flux density. This law was discovered by Faraday in 1831 and is therefore called Faraday's law of electromagnetic induction. An electromagnetic flowmeter is an instrument for measuring the volumetric flow rate of conductive liquids, based on Faraday's law of electromagnetic induction.

2023-03-31

What are the functions and characteristics of a target flow switch?

A target flow switch includes a vane system with a permanent magnet at its other end. Above this magnet is a reed switch, located outside the fluid flow. Additionally, the G&L flow switch has another magnet with the same magnetic properties, generating a force to reset the switch to the no-flow position.

2023-03-10

How many classifications of electromagnetic flowmeters are there?

An electromagnetic flowmeter consists of two parts: a sensor and a converter. It works according to Faraday's law of electromagnetic induction and is used to measure the volumetric flow rate of conductive liquids with a conductivity greater than 5 μS/cm. It is an inductive instrument for measuring the volumetric flow rate of conductive media. Electromagnetic flowmeters are widely used in various fields, including industrial pulp and black liquor, non-ferrous metallurgy ore pulp, coal slurry in coal plants, highly corrosive liquids in the chemical industry, pharmaceutical industry, food industry, bioengineering, water supply, and drainage engineering. Their widespread use is due to the wide variety of types available. So, how many types of electromagnetic flowmeters are there?

2023-02-17

Introduction to common types of flow switches from manufacturers. How many types of flow switches do you know?

There are many types of flow switches. To choose a suitable flow switch, you need to understand not only the flow switch manufacturer but also the different types of flow switches before purchasing. Below, the flow switch manufacturer will introduce three common types of flow switches.

2023-02-03

Maintenance methods for electromagnetic flowmeters during shutdown?

Electromagnetic flow meters are the most common type of flow meter, with a very wide and frequent range of applications. We can perform regular maintenance to extend their service life. So, how should we maintain an electromagnetic flow meter when it is not in use?

2023-01-29

Working principle and applicable range of imported orifice plate flowmeter?

The imported orifice plate flowmeter is a high rangeability differential pressure flow device composed of a standard orifice plate and a multi-parameter differential pressure transmitter (or differential pressure transmitter, temperature transmitter, pressure transmitter). It can measure the flow rate of gas, steam, liquid and water, and is widely used in process control and measurement in the fields of petroleum, chemical industry, metallurgy, power, heating, and water supply.

2023-01-13

How to use the three valves of an orifice flow meter

In today's rapidly developing industrial environment, orifice flow meters are frequently used measuring instruments in industrial measurement, with a very high frequency of use. Under high-frequency use, we need to understand its various components in order to achieve better and more accurate measurements in the future. Today, we will discuss the role of the three-valve assembly in an orifice flow meter.

2023-01-06

Common problems and solutions for target flow switches

While inexpensive, target flow switches suffer from design flaws that make them susceptible to external factors. This results in a shorter lifespan and higher maintenance costs, a major drawback of this type of switch. For your reference, we have compiled some common problems and solutions for target flow switches:

2022-12-23

Working principle and internal structure of paddle flow switch?

A target flow switch is a sensor controller that measures the flow rate of the medium in the pipeline and transmits the on/off signal to the backend device in real time. The flow switch is mainly installed online or inserted in pipelines of water, gas, oil and other media. When the flow rate is higher or lower than a certain value, it triggers the switch to output an alarm signal. After receiving the signal, the system can make the corresponding actuator operate.

2022-12-19

How should an earth pressure sensor be wired when measuring pipeline pressure?

Soil pressure measurement is an important task in the theoretical research of soil mechanics and engineering testing. Using soil pressure sensors, the contact stress between the surface of structures such as subgrades, retaining walls, dams, and roads and the soil medium, as well as the original stress state of the soil layer, can be obtained. This is used to evaluate the working state of the construction site and verify the theory of soil stress distribution. Soil pressure sensors are often used to measure the stress in soil such as airport runways, railway embankments, highway subgrades, and earth-rock dams. They are also used to measure the soil pressure exerted on underground oil, gas, and water pipelines, protective engineering, subways, tunnels, and other underground structures. How should the soil pressure sensor used to measure pipeline pressure be wired?

2022-12-02