Flap-11Px Lined Magnetic Level Indicator
Flap-11Px Lined Magnetic Level Indicator comes with F4 (PTFE)/F46 (FEP) lined chamber for selection. Flap-11Px has been applied for 3 patents.
Flap-11Px Lined Magnetic Level Indicator is designed with unique lining techniques. The lining junction between chamber and process flange is well fit to effectively avoid lining crack due to the stress during assembly and prevent instrument from corrosion damage caused by liquid leakage. Jiwei has developed innovative technologies, introduced full production process management and tests for Flap-11Px to improve the reliability and performance. Flap-11Px has been applied for 3 patents. Invention patent (NO.201710919511.7) is under verification and 2 utility patents (patent NO.201621028672.4 and NO.201721282291.3) are authorized. Flap-11Px is the optimum solution to continuously conduct robust measurements under harsh environments with high pressure, high temperature and corrosive media, and widely applied in chemical industry, oil refining, storage and transportation, water treatment, etc.
Flap-11Px Lined Magnetic Level Indicator comes with F4 (PTFE)/F46 (FEP) lined chamber for selection. F4 (PTFE) lined chamber is suitable for virtually all highly corrosive liquids, while F46 (FEP) lined chamber is for highly corrosive liquids with high permeability, such as liquid chlorine, bromine water.
Flap-11 Magnetic Level Indicator series products are designed based on the law of equilibrium in U connected vessels and coupling magnetic effect to achieve real-time level measurements and display. The level indicator is attached to the vessel and connects directly with the fluid to be measured. Within the chamber is a magnet float assembly inside. This float rests on the fluid surface and moves up and down with the change of level. Because of coupling magnetic effect, float with a permanent magnet actuates magnetic interacted flaps in the visual indicator which is mounted beside the chamber. Associated bi-color magnetic flaps will flip 180 degrees to indicate the actual liquid level. Generally, when liquid level rises, the float moves up and makes associated flaps flip from white to red, and when liquid level drops, the flaps flip from red to white. The interface between red and white flaps is the actual indicated liquid level inside the vessel.
● With unique design and lining technology between chamber and process flange, effectively avoid lining crack due to the stress during assembly and prevents instrument from corrosion damage caused by fluid leakage.
● Distinctive design with broader visual indicator and magnetic flaps greatly increases both visual distance and viewing angle. The larger sharp scale and digits make the indicator easily readable, even from visible distance of 60 meters.
● Exceeds national standard of IP54, Ingress Protection IP65 and IP66/67 are selectable.
● Provides F4/F46 lined chamber manufactured with multiple patented lining techniques, suitable for broader range of corrosive liquids level measurement.
● F4 (PTFE) lining for virtually all highly corrosive liquids.
● F46 (FEP) lining for highly corrosive liquids with high permeability, such as liquid chlorine, bromine water.
● Magnetic Switch, Compact Magnetic Switch and Remote Transmitter all qualified with SIL2 / SIL3 Functional Safety Assessment, as well as certified for both Intrinsic Safety and Flameproof Enclosure explosion protection.
| Applicable liquid | Density | 0.8～2g/cm³ |
| Viscosity | ≤200cp | |
| Measurement parameters | Range | Single section: 200～5600mm，multi-section up to 20m or longer |
| Accuracy | ±5mm or ±10mm | |
| Materials and specifications | Chamber | 304/316L with F4(PTFE)/F46(FEP) lining，φ57 |
| Float | 304 with F46(FEP) out-lined | |
| Visual indicator | Aluminum or PA66 nylon. Front cover available in glass panel (standard) or acrylic sheet | |
| Installation conditions | Process pressure | 0～1.6MPa |
| Process temperature | ≤120℃ | |
| Ambient temperature | -40～80℃ | |
| Output | Switch signal | Magnetic switch：220V AC 3A，SPDT |
| Continuous signal | Remote transmitter：4～20mA | |
| Process connection | Connection | Flange with customized dimension |
| Connection material | 304/316L stainless steel with F46 lining | |
| End fitting | Upper vent | Flange |
| Lower drain | Standard flange, lined valve available upon request | |
| Accessory | Thermal insulator | Rubber foam, asbestos, polyester |
| Certificates and approvals | SIL Qualification | SIL2(HFT≥0)/SIL3(HFT≥1) |
| Ingress Protection | IP65, IP66/IP67 | |
| Explosion-Proof | Flameproof Enclosure：Ex d IIC T6 Gb（Magnetic switch and Remote transmitter） Intrinsic Safety：Ex ia IIC T6 Ga（Magnetic switch and Remote transmitter） |
● Brine tanks, caustic circulation tanks, brine de-chlorination towers, chlorate decomposition tanks and ultra-pure hydrochloric acid storage tanks in membrane electrolysis apparatus.
● Liquid chlorine or bromine water.
● Ammonia storage tanks.
● Monomer tank at PVC manufacturing plants.
