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Luminous Type Magnetic Flap Level Gauge
| MOQ: | 1 set |
Brief Introduction: The HQ-UHZ59-C magnetic level gauge uses a magnetic float as the measuring element and a magnet to drive the flip
column for display, requiring no power source. It is suitable for various environments, from low to high temperatures, and from vacuum to
high pressure. It is an ideal liquid level measurement product for industries such as petroleum and chemical processing.Detailed Introduction:
HQ-UHZ-59/C Series Side-Mounted Magnetic Level Gauge
HQ-UHZ-59/C Series Side-Mounted Magnetic Level Gauge Overview
The HQ-UHZ-59/C series side-mounted magnetic level gauge is a product developed and manufactured by our company based on the imported,
absorbed, digested, and improved magnetic level gauge standard HG/T21584-95 promulgated by the former Ministry of Chemical Industry.
It can be used for medium level detection in various towers, tanks, troughs, spherical containers, and boilers. This series of magnetic level
gauges achieves high sealing, leak prevention, and adaptability to liquid level measurement under high pressure, high temperature, and
corrosive conditions, providing reliable safety. It overcomes the shortcomings of traditional glass tube (plate) level gauges, such as
unclear indication and fragility. It is unaffected by drastic high and low temperature changes and eliminates the need for multiple level gauges.
The entire measurement process is free of blind spots, with a clear display, intuitive readings, and a large measurement range. Especially
noteworthy is the on-site indication section, which, because it does not directly contact the liquid medium, demonstrates superior performance
in high-temperature, high-pressure, high-viscosity, toxic, harmful, and highly corrosive media. Therefore, it offers higher reliability, safety,
advanced technology, and practicality compared to traditional U-shaped glass tube and plate level gauges.
※ Structure and Principle of the Side-mounted Magnetic Level Gauge of the HQ-UHZ-59/C Series
This level gauge is developed based on the principle of buoyancy and magnetic coupling. When the liquid level in the measured container rises or falls, the float in the main tube of the level gauge also rises or falls accordingly. The permanent magnet inside the float transmits the magnetic coupling to the on-site indicator, driving the red and white flip columns to flip 180 degrees. When the liquid level rises, the flip column changes from white to red; when the liquid level drops, the flip column changes from red to white. The red and white boundary position of the indicator represents the actual height of the medium liquid level in the container, thereby achieving the indication of the liquid level.
※ Features of the HQ-UHZ-59/C Series Side-mounted Magnetic Level Gauge
● Suitable for measuring the liquid level and interface in containers. Besides on-site indication, it can also be equipped with remote transmission transmitters, control switches, and has complete detection functions.
● The indication is novel, the reading is clear and eye-catching. By observing the direction of the indicator, the angle can be changed according to user requirements.
● The measurement range is large and is not limited by the height of the storage tank.
● The indication mechanism is completely isolated from the measured medium, thus having good sealing performance, high reliability, and is safe to use.
● The structure is simple, installation is convenient, and maintenance costs are low.
● Corrosion-resistant.
● Explosion-proof.
※ Technical Specifications of the HQ-UHZ-59/C Series Side-mounted Magnetic Level Gauge
● Measurement Range: 300 - 15000mm
● Accuracy: ±10mm, ±16mm
● Diameter of the Flipping Column: 10mm, 16mm
● Working Pressure: 1MPa - 6MPa, Corrosion-resistant type ≤ 1.0MPa
● Density of the Medium: ≥ 0.45g/cm3
● Density Difference of the Medium: ≥ 0.15g/m2 (for measuring the liquid level)
● Medium Temperature: 20°C - +450°C
● Medium Viscosity: ≤ 0.4Pa·S. For media with high viscosity or those prone to crystallization at low temperatures, a heated jacketed type level gauge can be selected according to user requirements.
● Factory-issued connection flange dimensions: DN20, PN1.0 (metric pipe)
● Connection Flange: Adheres to the latest HG20592 - 20635-97 flange standard issued by the Chemical Industry Department in 1998. If using other flange standards (such as GB, ANSI, DIN, etc.), please specify in the order.
For the connection flange of the high-pressure side-mounted magnetic level gauge, it adopts HG20595-97 neck-welding connection flange DN25.PN4.0, with sealing surface forms of raised face or convex face.
● Main technical specifications of the remote transmission matching instrument can be found in the selection materials of our company.
● Special requirements can be negotiated during the order placement.
※ Standard for Flange of Side-mounted Magnetic Level Gauge Pipes of the HQ-UHZ-59/C Series
The connection flanges of the liquid level gauges manufactured by our factory all comply with the standards of the Chemical Industry Ministry (HG20592-20635-97) implemented on February 1, 1998. This standard has been revised based on the original standards HGJ44-76-91 and HG20529-92, and in accordance with ISO7005-1 (1992) standard and ANSI, DIN standards. The revised new standard includes the two major international systems of Europe and America, forming a complete set of standards for pipe flanges, gaskets, and fasteners with clear system, suitable for national conditions, and in line with international standards. The applicable outer diameters of the steel pipes covered by this standard have been expanded from the domestic series to the international common series (A) and the domestic series (B).
| HQUHZ-59-C | Magnetic flap level gauge | |||||||||
| Installation | C | Side-mounted | ||||||||
| D | Top-mounted | |||||||||
| Type | A1 | Magnetic flap level gauge (standard type) | ||||||||
| A2 | Magnetic flap level gauge (medium-temperature type) | |||||||||
| A3 | Magnetic flap level gauge (high-temperature type) | |||||||||
| B1 | Side-mounted magnetic level gauge with remote transmission | |||||||||
| B2 | Top-mounted magnetic level gauge with remote transmission | |||||||||
| C1 | Magnetic level gauge (with display) | |||||||||
| C2 | Magnetic level gauge (explosion-proof type with display) | |||||||||
| E | Luminous magnetic level gauge | |||||||||
| F1 | Corrosion-resistant magnetic level gauge (PTFE lined) | |||||||||
| F2 | Corrosion-resistant magnetic level gauge (PPR material) | |||||||||
| F3 | Corrosion-resistant magnetic level gauge (PTFE coated) | |||||||||
| F4 | Corrosion-resistant magnetic level gauge (made of PVC) | |||||||||
| J1 | Insulated jacket type magnetic level gauge | |||||||||
| J2 | Vacuum jacketed magnetic level gauge | |||||||||
| Attachment Selection | W | No | ||||||||
| O | The bottom uses a blind flange and is not equipped with a drain valve. | |||||||||
| S1 | Bottom plastic flange, equipped with a plastic drain valve (normal temperature and pressure). | |||||||||
| S2 | Bottom plastic flange, no plastic drain valve (normal temperature and pressure) | |||||||||
| K2 | Bottom clamp, no drain valve (for pressures below 1.6MPa) | |||||||||
| L | The bottom uses a blind flange with a drain valve (for pressure below 4.0MPa). | |||||||||
| K1 | Bottom clamp with drain valve (for pressures below 1.6MPa, not suitable for PTFE lined surfaces) | |||||||||
| Liquid-wetting material | 1 | 304(The side connecting flange is made of carbon steel) | ||||||||
| 2 | All 304 | |||||||||
| 3 | 316SS | |||||||||
| 4 | 316LSS | |||||||||
| 5 | PVC | |||||||||
| 6 | PP | |||||||||
| 7 | 304+PTFE | |||||||||
| 8 | 316+PTFE | |||||||||
| 9 | Carbon steel lined with PTFE | |||||||||
| 10 | 316+PTFE(coated) | |||||||||
| 11 | PPR | |||||||||
| 12 | S32168 | |||||||||
| connection type | P | PP flange | ||||||||
| Z | concave flange | |||||||||
| K | clamp | |||||||||
| L | threaded | |||||||||
| G | Flat welding flange | |||||||||
| T | Loose carbon steel flange | |||||||||
| J | Loose-fitting stainless steel flange | |||||||||
| Y | Raised face flange (high pressure) | |||||||||
| output signal | -O | Remote transmission instrument without auxiliary devices | ||||||||
| LR | Resistance type remote transmission | |||||||||
| LBJ | Equipped with an alarm switch | |||||||||
| LG | Wireless remote transmission type | |||||||||
| HART | HART | |||||||||
| LK | Liquid level controller | |||||||||
| RS | RS485 | |||||||||
| RPT | Bottom equipped with static pressure transmitter for remote transmission | |||||||||
| LB | Two-wire system, 4-20m current | |||||||||
| Connector box form | O | Wireless junction box (without auxiliary device for remote transmission instrument) | ||||||||
| S | Ordinary waterproof type | |||||||||
| D | ExdⅡCT6 | |||||||||
| specification | 1 | 0-1000 | ||||||||
| ... | ||||||||||
| 20 | 0-10000 | |||||||||
| pressure rating | A | 0.6MPa | ||||||||
| B | 1.0MPA | |||||||||
| C | 1.6MPA | |||||||||
| D | 2.5MPA | |||||||||
| E | 4.0MPA | |||||||||
| F | customization | |||||||||
※HQ-UHZ-59/C Series Side-Mounted Magnetic Level Gauge Selection Examples
●Measuring the liquid level of a 31% hydrochloric acid storage tank, with a density of 1.14 g/cm³, the wetted parts material is PVC, flat flange connection, equipped with a drain valve and explosion-proof magnetic level controller, measuring range of 3000mm, and working pressure of 0.6MPa.
Selection marking: HQ-UHZ-59/CFL5G-LKD-3000-0.6-1.14 (Selection of LK magnetic level controller is marked separately)
●Measuring the liquid level of an acetic acid storage tank, using a side-mounted steam-jacketed magnetic level gauge, without a drain valve at the bottom of the level gauge, the main body material is all stainless steel (304), loose flange connection, and no auxiliary devices. Measuring range: 0-1800mm, working pressure: -0.1MPa, working temperature: 10°C, medium density: 1.1g/cm³
Selection marking: HQ-UHZ-59/J02T-00-1800-0.1-0.1
※HQ-UHZ-59/C Series Side-Mounted Magnetic Level Gauge Application Notes
●The auxiliary devices, supporting instruments and accessories for the side-mounted magnetic level gauge are shown in the relevant sections of this selection document.
●Users should pay attention to ensuring the geometric tolerances during manufacturing and welding of the connecting flanges on their equipment, otherwise it will affect installation and use.
●In the outline drawing, "M" is called the "submergence distance" of the side-mounted magnetic level gauge. This is an important parameter among the basic parameters of the level gauge that users must understand. According to Archimedes' principle, the length of the magnetic float of the level gauge depends on the density of the measured liquid medium. The lower the liquid medium density, the longer the magnetic float, and the longer the "submergence distance" from the lower liquid inlet pipe to the bottom of the main pipe, and vice versa. To facilitate design engineers and users for correct use and installation, a comparison table of typical liquid medium densities and submergence distances is provided for reference. Liquid Medium Density and Float Distance Correlation Table (Reference Data)
※HQ-UHZ-59/C Series Side-Mounted Magnetic Level Gauge Installation, Use, and Maintenance
● To prevent the magnetic float from being damaged by high-speed movement inside the main pipe during transportation, the magnetic float is fixed at the lower liquid inlet pipe with a retaining wire before the level gauge leaves the factory. Users should remove the retaining wire before installation and use.
● The level gauge must be installed vertically to ensure that the magnetic float can move freely up and down inside the main pipe.
● A shut-off valve should be installed between the level gauge and the container to cut off the material during cleaning and maintenance.
● No magnetic materials are allowed near the level gauge body, otherwise, it will directly affect the normal operation of the level gauge.
● After the level gauge is installed, it needs to be calibrated with a magnet. Guide the magnetic flip column once with the magnet so that the display below the zero point is red and the display above the zero point is white.
● When the level gauge is put into operation, the upper liquid inlet valve should be opened first, and then the lower liquid inlet valve should be slowly opened to allow the liquid medium to enter the main pipe smoothly, avoiding the liquid medium carrying the float to rise rapidly, causing the magnetic flip column to malfunction or become disordered (if this occurs, it can be recalibrated with a magnet).
● When opening the bottom flange blind plate and installing the magnetic float, pay attention that the heavier end with the magnetic part should be facing upwards; it cannot be installed upside down!
● No solid impurities or magnetic impurities should enter the level gauge body to avoid jamming the float and reducing buoyancy.
● Depending on the medium, the drain valve can be opened regularly to clean the main pipe and remove accumulated substances inside the pipe.
On-site installation diagram
