Jiwei has launched a high-temperature-resistant and corrosion-resistant level switch ——Hastelloy Tuning Fork Liquid Level Switch. Hastelloy Tuning Fork Level Switch is made for tough conditions, effectively solves the problem of corrosion-resistant Tuning Fork Liquid Level Switches with coatings that are prone to peeling off in high-temperature environments. Hastelloy C...
Both double rods and single rod Vibrating Rod Level Switches are rod-shaped in appearance, but their internal structures are completely different. Tube-11 Vibrating Rod Level Switch is a double-rods structure. Tube-11 Vibrating Rod Level Switch has been specifically designed for high level or low level point level detection of solids with a density of 0.02 kg/cm³ or gr...
Recently, Tube-11 Interface Vibrating Rod Level Switches were successfully won the bid in the procurement of high/low level control instruments for the slicing water storage tanks and extraction towers of a Shandong Chemical Plant. Tube-11 Interface Vibrating Rod Level Switch can detect a solids interface (separation layers) within a liquid. With a minimum density diff...
In practical applications, some of the rapidly changing fluid levels in small containers or pipelines can result in overflow. In the small-volume containers and pipes, the fast liquid flow rate is a potential problem of danger. A proper signal output selection of the liquid level switch can avoid or solve the problem. Tuning Fork Liquid Level Switch comprises a two fo...
Tuning Fork Liquid Level Switches can be found in applications such as chemical and petrochemicals, food and beverage, production process monitoring and water treatment. In practical applications, working conditions vary widely in different industries, also the products’ properties. For example, in the chlor-alkali industry, alcohol is a kind of raw material during the...
Fork Level Switch and the Vibrating Rod Level Switch are point level switches, which are commonly used for high and low level alarms in solid level measurement to prevent overflow and dry operation. Fork Level Switch and Vibrating Rod Level Switch are both based on the vibration principle of the cantilever beam. The probe (fork tines or rod tube) is driven by a piezo-c...
For a better measurement solution, Jiwei developed 2 models of liquid level switches for measuring various liquids with different chemical properties: Ring-21 Compact Liquid Level Switch for simple conditions and Ring-11 Liquid Level Switch for difficult conditions. Ring-11 Liquid Level Switch has a larger junction case with modular design, also adaptive to AC and DC. T...
Recently, the successful level measurements of viscous powder by Jiwei Tube-11 Double Rods Vibrating Rod Level Switch earned high consumer ratings. The reliable performance and high cost performance of Tube-11 are favored by the automated measurement industry. Tube-11 has excellent preeminent in anti-hanging, and its measurement sensitivity and irrelevance of dielectri...
Tuning Fork Level Switch comprises a two fork tines which is driven by a piezo-crystal assembly to oscillate at its natural frequency. The fork sensors are typically factory calibrated and set at a specific frequency depending on the type of industry. When in air, the forks vibrate at their natural frequency; when solids cover the forks, the frequency of oscillation drop...
Magnetic Level Indicator is based on the law of magnetic coupling effect to achieve real-time level measurements and display. Within the chamber is a magnetic float assembly inside, which floats on the fluid’s surface. As the fluid level rises or falls, so does the magnetic float. As the float moves up or down, the magnet assembly rotates a series of bi-color magnetic fl...
The typical application is the level measurement of ash silos in the dedusting system of power plant. Due to the technical principle and structural limitations, RF Admittance Level Switch and Rotary Paddle Switch are generally not applied to the level measurement of the pressurized silo, for example, the level measurement of the pressurized silo in the ash conveying syst...
During a product’s transportation from the manufacturer to customer, damage is inevitable. By enhancing the packaging, Jiwei has customized a batch of strong protective sleeves to fully protect the probes from the damage caused by transit and unpacking steps by receivers. The protective sleeves are made of paper, but the material is firm and strong, its good protection ...
The working principle of Rotary Paddle Level Switch is based on an electric motor that turns at a certain speed, through a transmission and a shaft equipped with a paddle. Rotary Paddle Level Switches are used in silos, bins, tanks and hoppers to detect high and low levels of bulk solids. When the product level reaches the paddles, the material slows down the rotation ...
For a simplified introduction, contact measurement devices must navigate the object/part point-to-point, where non-contact systems measure with absolutely no contact or direct touch probing whatsoever. Contact measurement is an ideal choice for viscous powders, such as Rotary Paddle Level Switches, RF Admittance Level Switches and Vibrating Level Switches. The advantag...
Recently, a Shandong chemical enterprise ordered 2 sets of extended Tuning Fork Liquid Level Switches for acrylonitrile level measurement. The lengthened part from the flange of the Liquid Level Switch is 5.6 meters, which is extremely rare in the whole market. At present, Jiwei is the only domestic Chinese manufacturer that can successfully manufacture 5.6-metre-long Li...
Recently, Tesla has ordered 5 pieces of Jiwei Ring-11 Flame-proof Liquid Level Switches to measure and control the storage tanks. So far, Tesla has cumulative ordered dozens of Jiwei Ring-11 Liquid Level Switches. In fact, Tesla has made first order with Jiwei since three years ago. The reliable level measurement and excellent quality of Ring-11 Liquid Level Switches ha...
They can be mounted directly into existing stainless steel pipe systems or in tank/vessel walls. To save the budget and for convenient installation, thread process connection became one of the most popular process connections. In practical application, the process connections are mismatched to the various sizes of drilled holes in some cases. However, due to the risk ...
Targets at the ultra-high temperature working conditions with process temperature exceeding 250 ℃, Jiwei successfully developed Tube-11 Ultra-High Temperature Vibrating Rod Level Switch on the basis of its high-temperature model. It is featured with the function of water cooling (air cooling) and is able to work reliably under ultra-high temperature conditions that up to...
Hysteresis of Fork Liquid Level Switches in Specific Applications In Fork Liquid Level Switches, piezoelectric devices are utilized to achieve vibration drive and detection. Once resonant vibrating forks contact with measured medium, vibration frequency of forks substantially decreases, and the output signal from piezoelectric detection device decreases accordingly. The...
In the current situation, the growth of the global economy has been affected by uncertainty of Covid-19 pandemic and the impacts of the Ukraine war. Despite global material shortages and significantly increased material costs, freight costs and other challenging conditions, Jiwei substantially improved all financial key performance indicators in the first half of 2022 co...
A cylindrical rod or a fork is used as a vibrating probe. Piezoelectric devices are utilized to drive and detect the vibration. With state-of-the-art techniques, the specifications of our vibrating level switch and its reliability reach to an advanced level in the field. When a vibrating probe comes in contact with measured material, vibrating amplitude and frequency of ...
Protective baffle is a kind of thick stainless-steel or iron plate that is installed above the instrument probe in a certain shape to prevent the probe from being directly impacted by falling materials, so as to extend the service life, as well as to avoid false alarms. Depending on different applications, contact level switches (such as vibrating rod level switch, tuni...
By using high-frequency sound waves to detect the position and distance of objects – Ultrasonic Level Transmitters excel in industrial environments and applications. Ultrasonic level measurement provides continuous, non-contact and maintenance-free level measurement of sewage, wastewater, water conservancy and hydrology. The measurement is unaffected by dielectric consta...
Dust collector uses high-pressure air to spray the dust on filter bag through the pulse valve, and then collects the dust at the lower ash hopper. At this time, level switches need to detect and monitor the level of coal ash in the ash hopper. Coal is the main fuel in the heating process of Baijiu production. The carbon residue produced by coal combustion is discharge...
To control start-stop of the pump, tuning fork liquid level switches are crucial to detect the fluctuating slurry level in desulfurization absorption tower, and to report the alarm signals. Compared with peers, Ring-11 (Tuning Fork) Liquid Level Switches has the following characteristics and advantages: ● With only 40mm fork length, specially designed for pipelines an...
Recently, the "Product Application Manual" compiled by Jiwei R&D and Marketing department has been officially released. This professional reference manual includes important guidelines for the installations and explanations of level meters, as well as to provide a better understanding of the application possibilities and limits for level measurement industry. These orig...
Piezoelectric devices are the core elements of vibrating level switches, and piezoelectric ceramics are the most commonly used piezoelectric devices. Generally, the vibration driving and detecting components composed of multiple pieces of piezoelectric ceramics are also called piezoelectric ceramic components. From the structural design of vibrating level switch, the pie...
Recently, Jiwei Ring-21 Compact Liquid Level Switches have successfully replaced photoelectric level switches for liquid level measurement in the water vapor sampling and analysis system, as well as circulating water system of the conventional island at Fuqing nuclear power plant. Nuclear power plants have strict requirements on stability and reliability of instrumental...
In fact, the customer has been cooperating with Jiwei for nearly 6 years since 2017, and the excellent product quality hasmade the cooperation expand to other products series, such as Tuning Fork Level Switches, Liquid Level Switches, as well as Rotary Paddle switches. At the earliest, the customer searched Jiwei on Google and found that the precise technical details an...
Ultrasonic Level Transmitter is specifically designed for continuous non-contact liquid level measurement. The transducer (probe) sends out high frequency ultrasonic pulses. When a pulse hits the surface of measured liquid, it is partially reflected. The reflected wave is received by the transducer and converted into an electronic signal. The distance from the transducer...
Recently, Jiwei has been granted the Certificate of State High-tech Enterprise (Certificate No. GR202144207667) by Shenzhen Science and Technology Innovation Commission, Shenzhen Finance Bureau and Shenzhen Tax Service of State Taxation Administration. This is considered as the second time that Jiwei designated as State High-tech Enterprise after last designation in 20...
In pharmaceutical processes, a large number of ethyl acetate acid raw materials are stored in the tanks. In this case, for personal safety, liquid level switches are crucial to control the high/low level alarm signals and to transmit the signals to control room to restart or stop the pumps as well as to open the valves. The tuning fork liquid level switches, or liquid le...
Recently, Jiwei obtained the patent authorization with No. zl202120818524.7 for Reed-11 Reed Remote Transmitter. The Reed Remote Transmitter is designed to be assembled with Flap-11 Magnetic Level Indicator series products for remote control. It converts liquid level status to a 4～20mA signal and transmit it to remote console or control center to monitor and control th...
A customer in Jiangsu mainly produces finished sand, hoped to install level measurement sensors in hermetic metal containers at the sand production line for both overflow on high level control and dry-run protection on low level control with alarm signals. The dry-sand making processes not require water, so the workshop is surrounded by flying dust. The dry-sand medium ...
An Anhui sewage treatment plant builds a 100 t / D circulating fluidized bed integrated sludge incineration project, and provides the best solution for the final disposal of urban sludge. The processes of the integrated sludge incineration system mainly include drying system, incineration system and flue gas purification system. The drying system contains dryer, fine-pow...
204 pieces of Jiwei Flame-proof Tuning Fork Liquid Level Switches have been operating stably and reliably in Tenglong Aromatic Hydrocarbon (Zhangzhou) Co., Ltd. for more than 5 years without any problems or failures. The durable quality and excellent performance are beyond the user’s expectations and strongly preferred by the user. In fact, the customer has made rigorou...
