High Temperature Liquid Tank Magnetic Float Level Transmitter
The UHC type magnetic flap liquid level gauge is made up of measuring body,dual-colored display cylinder, ruler, top&low flange, magnetic ball and transmitter (4-20mA). Based on buoyance principle, the magnetic ball in the body of the level gauge is up or down with the liquid level changing and makes dual-colored turning to show the level of medium. Each cylinder is with two-color axisymmetric structures. The distance of two cylinders is 10mm. Red side of display cylinder indicates liquid and white side display cylinder indicates air. Besides measuring liquid level, it also could measure the interface of the two kinds of liquid.
1. Simple structure, good stability and reliability.
2. Independent of medium’s physical and chemical states such as conductivity, dielectric constants, foam etc.
3. Appliable for all kinds of medium environment such as corrosive, toxic and explosive one.
4. Interface measurement or level measurement of 2 kinds of medium with different density.
5. Two-wire 4~20mADC signal output, 0.8’’ or 0.56” LED digital display.
|(1) Center-center distance:||150~6000mm|
|(2) Medium density:||More than 0.45g/cm3|
|(3) Nominal pressure:||PN2.5~PN40, PN40~PN320(x 0.1MPa)|
|(4) Material:||SS304, 316L, PP, PTFE, or customized|
|(5)Operating temperature:||-190 ~ +425 °C|
|(6) Process connection:||DN20~DN80/RF/14,DN80~DN250/RF/14|
|A: Al &ABS flap cylinder||B: Al flap plate|
|C: PVC ABS flap cylinder||D: PP&ABS flap cylinder|
|E: AL &LED||F: PP&LED|
(8) Structure of top chamber:
2.welding cover with M14*1.5 plug screw
4.flange with M14*1.5 plug screw
5.welding cover with DN20 flange
6.flange with DN20 flange
7.welding cover with air valve
8.flange with air valve
(9) Structure of bottom chamber:
2.flange with drain plug screw
3.flange with DN20 welding tube
4.with DN20 flange
5.with needle/ball valve
(11)Application: Widely used in petroleum, chemical industry, oil field, pharmaceuticals industry,
food, wine industry etc., suitable for level measurements under the environment of high/low
temp., high pressure, strong corrosion, toxicity.
Note: Basic type, top mounted type, heat tracing type, LPG specialized type, anti-corrosive
type, boiler steam specialized type etc, they have some differences in technical parameter.
Different pressure has different flange specification.
Workshop and Processing
Principle of the remote magnetic flap level gauge
Because the remote magnetic flap level gauge is composed of a magnetic flap level gauge and a reed remote transmitter, combining the two components of the magnetic flap level gauge &1 introduces the working principle of the magnetic flap level gauge. The basic type of magnetic flap level gauge is a magnetic flap level gauge, also known as a magnetic float level gauge. Based on the structure of the connector, the principle of buoyancy and the magnetic coupling characteristics, real-time measurement of the liquid level is realized. When the liquid level in the measured container rises or falls, the magnetic float used to sense the change of the liquid level in the main measuring tube will also rise or fall. The permanent magnet steel in the float drives the magnetic flap outside the main measuring tube to flip 180&; 180 flux magnetic coupling; the two sides of the valve are painted with different colors (usually red and white) to indicate the position of the liquid level. When the liquid level in the container rises, the valve changes from white to red. When the liquid level in the container drops, the valve changes from red to white. The red and white junction of the indicator is the actual height of the liquid level in the container, so as to realize the accurate measurement and local display of the liquid level.
Installation of magnetic level gauge
The magnetic flap level gauge consists of a body, a flap box (composed of small red and white magnetic flaps), a float, and a flange cover. It is used for liquid level measurement of various liquid containers. It can be used for high temperature, explosion-proof, anti-corrosion, food and beverage, etc., as local display or remote display and control of liquid level.
|1.||No magnetic permeable materials are allowed to be around the body of the magnetic flap liquid level gauge. Do not fix with iron wire, otherwise it will affect the normal operation of the magnetic flap liquid level gauge;|
|2.||If the user adopts heat tracing piping by himself, non-magnetic conductive materials, such as copper tubes, etc. must be selected. The heating temperature is determined according to the condition of the medium;|
|3.||The installation of the magnetic flap liquid level gauge must be vertical, and a ball valve should be installed between the magnetic flap liquid level gauge and the container guide pipe to facilitate maintenance and cleaning;|
|4.||The medium should not contain solid impurities or magnetic substances, so as not to cause jamming to the float;|
|5.||Before use, the small balls below zero should be set to red with correction magnets, and the other balls should be set to white;|
|6.||Open the bottom flange and install the magnetic float;|
|7.||During commissioning, first open the upper guide valve, then slowly open the lower valve to allow the medium to enter the main conduit smoothly, observe whether the magnetic red and white balls are turned over normally, then close the lower guide valve, open the drain valve, and let the liquid level in the main conduit drop , Operate three times according to this method, it is normal and can be put into operation (except for corrosive and other special liquids);|
|8.||For liquid level gauges exceeding a certain length (common type> 3 meters, anti-corrosion type> 2 meters), it is necessary to add a middle reinforced flange or ear climbing as a fixed support to increase strength and overcome its own weight;|