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| Categories | Magnetic Flap Liquid Level Gauge |
|---|---|
| Brand Name: | JSHQ |
| Model Number: | HQ-UHZ59-C |
| MOQ: | 1 set |
| Measuring range: | 300~15000mm |
| Accuracy: | 10mm,16mm |
| Column diameter: | 10mm,16mm |
| Working pressure: | 1MPa~6MPa,Anti-corrosion type ≤ 1.0 MPa |
| Dielectric density: | ≥0.45g/m³ |
| Medium temperature: | 20℃~450℃ |
| Medium viscosity: | ≤0.4Pa.S |
| Company Info. |
| Hongqi Automatic Control (Jiangsu) Co., Ltd. |
| Verified Supplier |
| View Contact Details |
| Product List |
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.
※HQ-UHZ-59/C Series Side-Mounted Magnetic Level Gauge Structure and Working Principle
The level gauge is developed based on the buoyancy principle and
magnetic coupling effect. When the liquid level in the measured
container rises or falls, the float in the main pipe 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-flops to rotate 180 degrees. When
the liquid level rises, the flip-flops change from white to red;
when the liquid level falls, the flip-flops change from red to
white. The boundary between the red and white sections of the
indicator represents the actual height of the liquid level in the
container, thus achieving liquid level indication.
※HQ-UHZ-59/C Series Side-Mounted Magnetic Level Gauge Features
● Suitable for measuring the liquid level and interface level of
liquid media in containers. In addition to on-site indication, it
can also be equipped with a remote transmitter and control switch
for complete detection functions.
● Novel indication, intuitive and conspicuous readings. The
direction of the indicator can be changed according to user needs.
● Large measuring range, not limited by the height of the storage
tank.
● The indicating mechanism is completely isolated from the measured
medium, thus ensuring good sealing, high reliability, and safe use.
● Simple structure, convenient installation, and low maintenance
costs.
● Corrosion resistant.
● Explosion-proof.
※HQ-UHZ-59/C Series Side-Mounted Magnetic Level Gauge Main Technical Parameters
● Measuring range: 300~15000mm
● Accuracy: ±10mm, ±16mm
● Flip-flop diameter: 10mm, 16mm
● Working pressure: 1MPa~6MPa, corrosion-resistant type ≤1.0MPa
● Medium density: ≥0.45g/cm³
● Medium density difference: ≥0.15g/m² (for interface level
measurement)
● Medium temperature: -20°C~+450°C
● Medium viscosity: ≤0.4Pa·S. For media with high viscosity or
media that easily crystallize at low temperatures, a heated
jacketed level gauge can be selected according to user
requirements. ● Factory-supplied connection flange size: DN20,
PN1.0 (metric pipe)
● Connection flange: Uses the HG20592~20635-97 flange standard
newly issued by the Ministry of Chemical Industry in 1998. If other
flange standards are required (such as GB, ANSI, DIN, etc.), please
specify when ordering.
For high-pressure side-mounted magnetic level gauges, the
connection flange uses HG20595-97 necked butt-welding connection
flange DN25.PN4.0, with raised face or convex face sealing surface.
● For the main technical parameters of the remote transmission
supporting instruments, please refer to the relevant content in our
company's selection data.
● For special requirements, please discuss with us when ordering.
※ HQ-UHZ-59/C Series Side-Mounted Magnetic Level Gauge Steel Pipe Flange Standard
The connection flanges of the level gauges manufactured by our
factory all adopt the standard of the Ministry of Chemical Industry
(HG20592-20635-97) implemented on February 1, 1998. This standard
is revised based on the original standards HGJ44-76-91 and
HG20529-92, and refers to ISO7005-1 (1992) standard and ANSI and
DIN standards. The revised new standard includes the two major
internationally used European and American systems, forming a
complete set of pipe flange, gasket, and fastener standards that
are clear in content, suitable for national conditions, and in line
with international standards. The applicable steel pipe outer
diameter of this standard is expanded from the domestically used
series to the internationally used series (A) and the domestically
used series (B).
product selection
| 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, recalibrate 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 is 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 deposited substances inside the
pipe.
On-site installation diagram
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