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Chemical Industry

Application of Magnetic Level Indicator in Level Measurement of Horizontal Storage Containers

Guangxi Shuangying Group is mainly engaged in the production of automobile parts. In the production, polyether is an indispensable raw material, as known as polyethylene glycol ether, is a kind of transparent viscous liquid and synthetic oil. Its viscosity index is much larger than that of mineral oil, with density of 1.095g/ml. Generally, polyether has good fluidity at low temperature. However, each of the client’s horizontal storage container is 3 meters long and with constricted mounting spaces. The distance from the container bottom to the ground is only 0.8m. Since it is crucial to monitor the actual liquid level in real time to ensure the normal production, higher requirements for measuring instruments are put forward due to the special working condition.


Through communication, Jiwei Flap-11 Magnetic Level Indicator is recommended to the client. Flap-11 Magnetic Level Indicator series products are designed based on the law of equilibrium in U connected vessels and magnetic coupling effect to achieve real-time level measurements and display.

          


Compared with similar products of other brands in the market, Jiwei Flap-11 Magnetic Level Indicator series products have the following advantages:


1. Distinctive design with broader display panel and magnetic flaps greatly increases both visual distance and viewing angle. With larger sharp scale and digits, display panel appears beautiful and elegant outlook. In fact, Jiwei Magnetic Level Indicators make level visible from up to 60m away.

2. Exceeds national standard IP54, higher level of Ingress Protection IP65 and IP66/67 are selectable for different applications.

3. Explosion proof approvals for Flameproof Enclosure (Ex d IIC T6~T1 Gb) and Intrinsic Safety (Ex ia IIC T6~T1 Ga), including SW-11 Magnetic Switch, SW-21 Compact Magnetic Switch and Reed-11 Remote Transmitters.

4. Optional F4 (PTFE)/F46 (FEP) lined chamber manufactured with multiple patented technologies suits for wider range of corrosive liquid level measurement.

5. Strong vibration resistance with accurate magnetic coupling system, prevents from turn-over phenomenon.


Magnetic Level Indicators are mostly used for three-dimensional storage tanks rather than horizontal storage containers. Aimed at the low mounting position and limited, Jiwei customized and re-structured Magnetic Level Indicators on the basis of the client’s requirements.


The conventional structure of Magnetic Level Indicators was composed of buoy, panel, upper and lower flange. In this case, Jiwei engineer removed the upper flange and the lower drain valve and blocked the lower end with a blind plate. Due to the constricted mounting space, the distance between the lower flange and the ground should be within 0.8m. In addition, because of the removed upper flange, to facilitate the exhaust and to avoid rainwater and dust entering the buoy, an elbow pipe was designed at the upper end of the buoy, as well as a bracket was built to support the indicator.

      

Comparison between the customized and the conventional Magnetic Level Indicators


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