Flap-11C Plastic Magnetic Level Indicator
Flap-11C Plastic Magnetic Level Indicator is a corrosion resistant level meter that particularly suitable for chemical water treatment and wastewater treatment at power plant, printing and dyeing industry, as well as other acidic liquids which are not miscible with PP material.
Flap-11C Plastic Magnetic Level Indicator is a corrosion resistant level meter that particularly suitable for chemical water treatment and wastewater treatment at power plant, printing and dyeing industry, as well as other acidic liquids which are not miscible with PP material. With the same measuring range, the weight is only about 1/5 of the type Flap-11A Standard model, greatly facilitates the installation.
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.
● Light weight and easy to install, only about 1/5 weight of similar products that made of stainless steel.
● Made of high-quality PP material, stronger corrosion resistance.
● 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.
● 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 | 0.45～2g/cm³ |
| Viscosity | ≤200cp | |
| Measurement parameters | Range | Single section: 200～4000mm，multi-section up to 20m or longer |
| Accuracy | ±5mm or ±10mm | |
| Materials and specifications | Chamber | PP，φ50，wall thickness 4.2mm |
| Float | PP | |
| visual indicator | Aluminum or PA66 nylon. Front cover available in glass panel (standard) or acrylic sheet | |
| Installation conditions | Process pressure | -0.1～0.6 MPa |
| Process temperature | -20～80℃ | |
| Ambient temperature | -40～50℃ | |
| Output | Switch signal | Magnetic switch：220V AC 3A，SPDT |
| Continuous signal | Remote transmitter：4～20mA | |
| Process connection | Connection | Flange with customized dimension |
| Connection material | PP | |
| End fitting | Upper vent | Flat welding end |
| Lower drain | Lower valve (standard) | |
| 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） |
● Regeneration tanks, refrigerant tanks, hydrochloric acid tanks and alkali tanks in sulfate removal systems with membrane method for depleted brine treatment at caustic soda plants.
● Wastewater tanks at sewage treatment plants.
● Raw material tanks at dyeing plants.
