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Shenzhen Jiwei Automations Ltd.

Address：5th Floor, Baoli Building, No. 3162 Longgang Avenue, Shenzhen, P. R. China.
Tel：+86 755 28407683

Standard Type

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Flap-11A Standard Magnetic Level Indicator

●　Display panel with broader design, greatly increases visual distance and viewing angle. With larger sharp scale and digits, display panel appears beautiful and elegant outlook.

●　Exceeds national Ingress Protection standard IP54, Ingress Protection rating IP65 and IP66/67 are selectable for different applications.

●　Magnetic switch and remote transmitter have all passed SIL2 / SIL3 Functional Safety Assessment, as well as certified for both Intrinsic Safety and Flameproof Enclosure explosion protection.

●　Made of 316L seamless stainless-steel tube, suitable for majority corrosive liquids.

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Flap-11A Standard Magnetic Level Indicator is made of 316L stainless steel, suitable for majority corrosive liquids. The chamber with 51mm diameter is made of high quality seamless stainless-steel tube. It effectively avoids the common problems with conventional stainless-steel tube, such as leakage, insufficient pressure endurance, poor appearance and short life time, etc. Besides, Jiwei has developed innovative technologies, introduced full production process management and test to improve the reliability also quality of Flap-11A.
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. As liquid level in the vessel varies up or down, magnetic float in the connected chamber rises or falls simultaneously. Because of magnetic coupling effect, float with a permanent magnet actuates magnetic interacted flaps in the display panel which is mounted beside chamber. Associated flaps will flip 180 degree to indicate liquid level. The front and back surface of flaps are coated with two colors respectively (red and white). Generally, when liquid level rises, the magnetic float moves up and makes associated magnetic flaps flip from white to red, and when liquid level drops, associated magnetic flaps flip from red to white. The interface between red and white flaps is the actual indicated liquid level inside the vessel. According to different chemical properties of measured medium, appropriate materials should be selected carefully for the chamber and the magnetic float. In addition, the weight, volume and structure of magnetic float have to be taken into consideration according to different density of measured liquid in order to achieve optimal measuring accuracy.
●　Display panel with broader design, greatly increases visual distance and viewing angle. With larger sharp scale and digits, display panel appears beautiful and elegant outlook.

●　Exceeds national Ingress Protection standard IP54, Ingress Protection rating IP65 and IP66/67 are selectable for different applications.

●　Magnetic switch and remote transmitter have all passed SIL2 / SIL3 Functional Safety Assessment, as well as certified for both Intrinsic Safety and Flameproof Enclosure explosion protection.

●　Made of 316L seamless stainless-steel tube, suitable for majority corrosive liquids.

Fluid	Density	0.45～2g/cm³
Fluid	Viscosity	≤200cP
Measurement parameters	Measuring range	Single section: 200-5600mm Multi-section: up to 20m or longer
Measurement parameters	Accuracy	±5mm or ±10mm
Material	Chamber	316/316Lstainless steel, Ф51, thickness TBD according to process pressure and process temperature
	Float	316/316L, with F46 out-lined
	Display panel	Flap: aluminum or PA66 nylon,selectable Front cover: glass panel (standard) or acrylic sheet
Operating condition	Process pressure	vacuum～10MPa
	Process temperature	-40～350℃
	Ambient temperature	-40～80℃
Output signal	Switch signal	Magnetic switch: 220VAC 3A,SPDT
Output signal	Continuous signal	Remote transmitter: 4～20mA
Process fitting	Connection type	Flange with customized dimension
Process fitting	Material	316L
End fitting	Upper vent	Flat welding cap (standard), flange, cocks, and 1 / 2” NPT ball valve available upon request
End fitting	Lower drain	1 / 2” NPT ball valve (standard), flange and cocks available upon request.
Accessory	Steam jacket	Customize
	Electric heater	Customize
	Thermal insulator	Rubber foam, asbestos, polyester
	Vacuum jacket	Anti-frost, for temperature lower than -5℃
Safety certification	SIL Certificate	SIL2 (HFT≥0) /SIL3 (HFT≥1)
	Ingress Protection rating	IP65, IP66/67
	Explosion-proof	Flameproof Enclosure: Exd IIC T6 Gb(including magnetic switch and remote transmitter), Intrinsic Safety: Exia IIC T6 Ga (including magnetic switch and remote transmitter)

●　Brine filtration tank and wastewater tank in membrane electrolysis apparatus.

●　Compound phosphate preparation tank in hydrogen peroxide apparatus.

●　Various industrial wastewater tanks.
For more information, please Contact：sales@jiweimeter.com

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Flap-11A Standard Magnetic Level Indicator

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