What is Reflex Level Gauge?

Liquid Level Gauge provides direct observation of liquid level in a tank/vessel rising and falling level of the liquid inside the tank/vessel can be observed through the glass assembled in the gauge.

Reflex Level Gauge use the R-form sight glasses. One side surface of Reflex Glass to use flat glass has several grooves for reflecting prism. The principle of the Reflex Glass is based on the difference in the refractive indices of liquid and gas or in particular of water and steam. Liquid level shows conspicuously dark hard colour for liquid space and light white colour for empty space. These Reflex series are not used with a mica shield.

Reflex Level Gauge

The Reflex Gauge is assembled firmly with gasket, reflex glass, cushion gasket and gauge cover on the body by U-bolts. Reflex Liquid Level Gauges, designed and built for a wide range of high temperature and high pressure applications.

The most advantage of this type is for easy level reading of boiling liquids. When liquids are boiling, their bubbles make the surface level indistinct. The manual adjustment of isolation valve at the input of the media entering the chamber reduces the bubbling.

Therefore the level gauge ease to read the level or bubbling liquids. It also provides advantages for highly dense and viscous liquids, as the body is made of forged construction only. This level gauge is designed and manufactured for easy and accurate reading the liquid level of highly foamy liquids. The gauge has a relatively spacious internal area where foamy liquid is held from forming foams.

Reflex Level Gauge Construction

The gauge consists of a body having machined to have a liquid where high temperature are liable to occur, the glass is toughened borosilicate glasses are used.

These reflex gauges preferably used for reservoir tanks that require a relatively long visible length by constructing the supporter. The reflex level gauge is assembled firmly with gasket, reflex glass, cushion gasket and gauge cover on the body by U bolts.

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Tank gauge for LPG LNG

The Tank Gauge for LPG LNG is designed to measure level in fuel tanks containing liquefied gases. Accurate measurement is possible regardless of the tank atmospheric conditions. Flexible hardware and software modules ensure easy adaptation for measurements in any kind of liquefied gases, such as LPG (Propane, Butane), LEG (Ethylene), and LNG.


The Tank Gauge for LPG LNG employs the Frequency Modulated Continuous Wave (FMCW) principle. A frequency sweeping microwave signal is emitted by the Radar through a stand pipe. The distance is derived from the time delay of the reflected signal from the liquid surface. The stand pipe is delivered to match the total tank height. The pipes have ventilation holes allowing the vapour pressure inside and outside the pipe to stabilize, thus allowing the liquid to rise or fall unimpeded in the pipe.

The electronic unit in the Radar Tank Gauge for LPG LNG includes a unique signal detection method that ensures optimum performance. Combined with its superb signalto- noise ratio, it offers a high measurement reliability and accuracy.

Each Tank Gauge for LPG LNG is connected to a dedicated signal processing unit, which includes the processing of radar microwave signals and the intrinsically safe interface to the instruments located in hazardous area.

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Tank Terminal Automation System

Tank Terminal Automation Systems find applications primarily in Trucks /Wagon fuel loading. Fuels include Motor Spirit (MS), Diesel, Aviation Turbine Fuel (ATF), Naphtha, Superior Kerosene Oil (SKO), Furnace Oil, (Diesel High Pour Point) DHPP, Liquefied Petroleum Gas (LPG), Chemicals.

The Flowmeters used are generally PD Meters or Coriolis Mass Flowmeters. The Batch Controllers supplied conform to OIML R117 capable of simultaneous Additive Injection and Ethanol Blending with Ratio Control and Our AMC includes hassle-free service at all times leading to enhanced performance and higher productivity.

Security Surveillance

We deliver solutions for security surveillance, CCTV, Access Control systems for public utilities, oil depots and terminals.

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The Benefits of Installing an Automatic Tank Gauge System

How Installing an Automatic Tank Gauge System Can Save Your Fleet Time and Money

Automatic tank gauge systems, or ATG’s are excellent additions to your fleet’s maintenance program. An ATG is an electronic component placed within an above or below ground tank that monitors fuel or lubricant volume over time to assess whether the tank is leaking fluid. Besides monitoring for leakage, Automatic tank monitoring systems are also instrumental in gauging fluid levels, usage based on volume, tank temperature and can alert operators with warnings when tank volumes are too high or have reached a critical low. Additional functionality of an automatic tank gauge system allows for measurements of any gaps existing within the connections between tanks, pipes and hose lines, as well as the monitoring of system pressurization. Modern ATG’s are sophisticated monitoring systems that can be either wired or remotely accessed via a wireless modem.

How Does an Automatic Tank Gauge Work

Automatic tank monitoring gauges operate by either using a probe made up of a rod with floats and connected sensors or a pressure monitoring sensor to measure the level of fluids in a tank. The probes also come equipped with thermistors – electrical resistors used for the measurement and control of temperature within the tank. Both wired and wireless ATG systems transmit data to a centralized console where information is stored and printed and where an internal alarm system is activated when fluid levels reach a critical volume or temperature fluctuates to undesirable levels.

Continuous and Periodic Testing

To monitor results within a tank system, ATG’s can be programmed to follow either a continuous or periodic testing schedule. Continuous testing allows for the ongoing testing of tank levels based on data collection during intervals of time that the tank is not being used for fuel or fluid dispensation. In these interim periods of inactivity the automatic tank gauge gathers information and creates an average data analysis to determine whether or not a tank is intact or leaking. For periodic testing a tank system must be shut down and removed from operations for a period of several hours, generally throughout the course of a night. During this time there can be no fuel delivery or dispensation and fluctuations in tank volume determine whether or not the tank is leaking or intact.

Problems with ATG Systems and Testing

Like so many other problems in life, human error is to blame for the bulk of malfunctions associated with ATG testing. With sensors designed to alert operators by way of specific alarms that go off when the tank volume or temperature fluctuates beyond indicated levels, ignoring or disregarding alarms is a big problem. With the sounding of an alarm, the ATG is communicating that there is a problem in one of the designated areas of analysis and by not investigating or remedying the situation, facility operators run the risk of overflowing, overheating, running out of or freezing their fluids and fuel. While ATG’s are instrumental in detecting leaking tanks, not all alarms are the result of a leak, but by ignoring an alarm or light sensor, you eliminate the effectiveness of your ATG system.

The Benefits of Installing an ATG

With ongoing measurement of tank levels and temperature you can insure the integrity of your product while also preventing costly inventory loss and the environmental costs associated with cleanup from a leak. ATG’s are sophisticated monitoring systems that can detect fluctuations in tank volume and alert operators when there is a minimal or substantial leak. Temperature measurements monitor the integrity of fluids like gasoline, which pressurizes in response to an increase or drop in temperature as it expands and contracts. Because of the expanding and contracting nature of certain fluids, ATG testing requires a window of time post-delivery to allow for the stabilization of temperature within the tank. Another key benefit to installing an automatic tank gauge system is reassurance that you will always have enough fuel on hand to satisfy your inventory needs. With an ATG system you will be alerted when it’s time to re-order and refill, and deliveries can even be setup to be automated, freeing up your facility manager and warehouse operators for other tasks.

As ATG technology continues to evolve, we remains steadfast in ATG software solutions to help maximize Just-In-Time deliveries and inventory transparency with our customers. Having an ATG solution that focuses specifically on your fluid inventory needs provides peace of mind you need so you can focus on your customers and your business needs.

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Benefits of Tank Gauge System

Fuel is an asset. Protecting this asset and using it wisely is crucial to a profitable operation. That’s where a fuel tank gauge system can pay big dividends, as they work to do more than just measure the level of fuel left in storage tanks but also save money and increase efficiency in a variety of ways.

With sensors and other data-tracking components incorporated into the fuel framework, owners and operators stay aware of everything from fuel levels to temperature, pressure, and other key details.

Below we’ll take a closer look at the importance of fuel tank monitoring and some of the biggest advantages.

Characteristics Of The Best Fuel Tank Gauge Systems

Fuel is a resource, and protecting that resource ensures you’re able to maximize it along with your day-to-day operations. Fuel tank monitoring is also important for staying in compliance with certain environmental regulations.

Increase operational efficiency with rapid response

Fuel tank gauge systems can manage all aspects of fuel, from its procurement, to usage, its condition and even its eventual sale.

Essentially, fuel tank gauge systems allow owners and operators to increase their operational efficiency by real time tracking of key metrics involved in important decisions. And with remote sensors, owners and operators can even monitor and make adjustments remotely.

If an issue is detected, you are immediately alerted so adjustments or repairs can begin sooner and based on what is happening now, not data from days or weeks ago. This not only protects your investment and minimizes lost fuel and downtime.

Environmental compliance

Fuel tanks require routine maintenance. As they age, factors such as rust or algae growth not only impact the quality of the fuel, but can also have environmental impacts. In the event a fuel tank is damaged, there is the potential for fuel to escape, possibly contaminating soil and or groundwater in the area.

One of the big advantages of a fuel tank gauge system is the speed at which issues are detected allowing for faster repairs and minimizing the environmental impact.

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How Does a Magnetic Level Gauge Work?

Magnetic level gauges use magnetism to link the indicator in a gauge to a float inside of a vessel in order to accurately show the level of fluid within. As the position of the float changes, the indicator moves up or down by the same amount, meaning that the level in the measuring chamber will always be the same as the fluid level in the vessel itself.

Operating on the principle of conductivity, magnetic level gauges consists of 3 main components: the chamber, the float, and the indicator. The chamber is the main component and can be constructed of any non-magnetic material. It is typically mounted to the side of the vessel, with the liquid level in the chamber set up to match the liquid level in the vessel. While similar to a traditional sight glass in this way, magnetic level gauges can handle some of the more extreme applications, such as ones with highly corrosive or hazardous materials.

To actually get a reading, the ancillary chamber of the magnetic level gauge uses a float that contains a set of permanent magnets. This float is normally constructed of 316 stainless steel or titanium, but can be produced using other materials where needed. When the fluid fluctuates in the primary chamber, it results in a proportionate change in the magnetic level gauge. At LJ Star, each float is custom engineered to meet our customer’s specific application. The float is designed to project a magnetic field through the gauge’s chamber to an externally mounted indicator system in order to easily view internal fluid levels. The external indicator is normally comprised of rotating flags that are brightly colored in order to easily identify when the flag is flipped. Each flag is assembled around rare earth magnetic assemblies that ensure a latching action to eliminate false indication due to vibration.

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Tank Gauging System For Tanks

Our products include Radar Level Transmitters and Servo gauges which can be Linked to ATG systems including our own which has been written specifically to suit the bulk liquid storage industry

Our tank radar gauges can be supplied on their own or with our tank gauging system which is used worldwide to monitor tank farms and refineries of all sizes. Our tank gauging system links to most gauges and software on the market.

Our tank gauging system can be the complete one-stop solution or can link to all major gauges. We can design, supply, install & maintain your complete gauging system including radar gauges, overfill prevention system and software making Servo Tank Gauge your one stop solution for all your tank gauging requirements

Servo Tank Gauge has a range of solutions for interfacing its tank radar gauge with DCS/SCADA systems as well as gauges / monitoring systems supplied by other companies.

Our tank gauging systems are designed and manufactured and supported throughout the world by our team of Product Engineers and our international network of agents.

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Tank Terminal Automation – Maximising profits through seamless terminal integration

Global oil and gas bunkering and storage industry faces great complexity across its spectrum of operations due to the wide variety of business processes, the. With multiple systems, the biggest challenge terminal managers must overcome is getting the right information to the right people at the right time to support vital decision making processes.

Optimised operations efficiency

A state-of-the-art totally integrated terminal resources planning and execution system, Tank Terminal Automation integrates all components of your business from field level to enterprise level seamlessly onto one single platform. By enabling smooth automation and integration of your business applications, we optimise your operations and increase your competitive edge to meet market demands efficiently.

Information where you need it, when you need it

Tank Terminal Automation harmonises the flow of information across your entire enterprise. In other words, you’ll get the accurate, real-time information you need when you need it to make the right decisions, improving your reaction time to the market and allowing you to stay competitive while retaining your quality and reliability standards.

Boosted productivity and throughput

With modules that encompass logistics, distribution and administration management, oil storage tracking and movement activities within your entire business scope, Tank Terminal Automation helps you manage the entire operation execution process in a safe and productive manner. That efficiency translates to faster loading, higher throughput and a greatly reduced workforce.

Stay secure and compliant

Tank Terminal Automation’s series of enterprise-level modules assist you in securely managing your business contracts in both the leasing and trading business environment. Tank Terminal Automation delivers the added benefit of planning your entire terminal operations with complete security and audit trails in place.

A solution that grows with you

Tank Terminal Automation can be deployed at a single terminal or a multi-site enterprise with terminals located in different geographic locations. With multiple easy add-on modules, you can build on the software as your needs expand.

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6005 Servo Tank Gauge

The Varec 6005 Servo Tank Gauge (STG) is an intelligent tank gauge for high accuracy liquid level measurement. The 6005 Servo Tank Gauge can also determine the interfaces between three liquids, specific gravity of these liquids and tank bottom. All calibration and operating functions can be made via the user friendly Matrix program and touch sensitive keypad.

  • Output signals: RS-485, MODBUS, Mark Space and Enraf BPM protocol
  • Suitable for atmospheric & high pressure applications up to 363 psi
  • FM, ATEX & CSA approved for use in hazardous areas
  • NMI approved for custody transfer applications
  • Measures liquid to an accuracy of +/- 0.7 mm

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Water tank level gauges are used to quickly tell how much water is in your storage tank at any given time.

Electronic Indicators

Water tank level gauges with electronic indicators are a convenient way to keep an eye on your water levels from inside your own home or office.

Electronic level gauges consist of a transmitter and a receiver. The electronic indicator inside the tank transmits a wireless signal to a receiver located in the home or office.

Level gauges with electronic indicators eliminate the need for you to go to the actual physical location of the tank to read the water level.

Mechanical Indicators

Water tank level gauges with mechanical indicators work by using a weighted float and an indicator. The indicator is connected to a counter-weight which moves down with the rising water level and lifts up the float.

Level gauges with mechanical indicators are precisely accurate, as the sliding indicator located on the outside of the tank is able to match with the water level exactly.

Unlike level gauges with electronic indicators, those with mechanical indicators will never go down on you. Since there are no electronic parts,no power source is required and certainly no batteries. That makes these gauges an appealing option over those with electronic indicators.

FROM: Rain Harvesting Supplies

JOYO M&C is one of the TOP 2 supplier for SINOPEC and PETROCHINA for over ten years, Our products are also supplied to Russia LUKOIL and some countries in the worldwide.

We are dedicated to create value for customers based on our expertise.