Tubular Level Gauges

Specifications:

• Range: 500 to 2500mm
• Gauge Glass: Tempered Borosilicate
• Wetted Parts: Carbon Steel (CS), Stainless Steel 304/316
• Maximum Temperature: 130ºC
• Maximum Pressure: 5 Kg/cm2
• Options: Needle Valve
• Scale: Acrylic/ Stainless Steel 304
• Flange or Process Connection: 1″ ASA 150#

Applications:

• Medium Storage & Process Tanks
• Hydraulic/Filtration/Chemical Dosing Systems
• Water Treatment and Boiler Drum Level
• Ships/Bulk Carriers

Description:

Tubular Level Gauges represent a fundamental solution for fluid level monitoring in a wide range of industrial applications. Engineered with precision and reliability in mind, these gauges offer precise measurement capabilities within a substantial range of 500 to 2500mm. Crafted with high-quality tempered borosilicate gauge glass, they ensure clarity and durability even in demanding operating conditions.

With wetted parts available in Carbon Steel (CS) or Stainless Steel 304/316, these gauges guarantee compatibility with various media and resist corrosion effectively. Operating within a temperature range of up to 130ºC and a maximum pressure of 5 Kg/cm2, they provide reliable performance in diverse environments.

Equipped with options like a needle valve for enhanced control and safety, Tubular Level Gauges offer flexibility and customization according to specific requirements. The availability of scale options in Acrylic or Stainless Steel 304 ensures clear and accurate level readings.

These gauges find extensive applications across industries including medium storage and process tanks, hydraulic and filtration systems, chemical dosing setups, water treatment facilities, boiler drum level monitoring, as well as in marine environments such as ships and bulk carriers. Their robust construction, precise measurement capabilities, and adaptability make them indispensable tools for fluid level management, contributing to operational efficiency and safety in critical processes.

1. Overview

• Tubular level gauges are simple, economical instruments used to visually monitor liquid levels in tanks and vessels.

• They consist of a transparent glass tube mounted vertically, connected at both ends to the tank, allowing direct observation of the liquid column.

2. Types

• Reflex Glass Tube Gauge

  • Uses prismatic grooves to enhance contrast between liquid and vapor phases.

  • Ideal for applications where clear visibility is needed without illumination.

• Transparent Glass Tube Gauge

  • Employs two flat glass plates, allowing liquid level to be viewed directly.

  • Suitable for corrosive or colored liquids, often used with protective shields.

3. Construction

• Main Components:

  • Glass tube (borosilicate for durability)

  • End blocks with isolation valves

  • Drain and vent connections

  • Safety guards or shields for operator protection

• Materials:

  • Carbon steel, stainless steel, or alloy depending on fluid compatibility.

4. Applications

• Widely used in industries such as:

  • Chemical processing

  • Petrochemical plants

  • Power generation (boilers, condensers)

  • Water treatment facilities

5. Advantages

• Direct, continuous visual indication of liquid level.

• Simple design, easy installation, and low maintenance.

• Cost-effective compared to electronic level sensors.

6. Limitations

• Not suitable for high-pressure or high-temperature applications beyond glass tolerance.

• Requires protective shielding for hazardous fluids.

• Visibility can be affected by liquid color or turbidity.

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