XK-UGS Oil Liquid Level Indicator Sight Glass Gauge Glass Tube Level Gauge is a simple & reliable device for direct reading in atmospheric or pressurized tank ap - plication . Mounted side of the tank through flange or threaded connection . Liquid inside the tank passes through a transparent glass tube & liquid can be viewed through the glass tube and mea - sured by a scale mounted on the gauge . Glass Tube (A. Borosilicate glass; B. Quartz glass tube; C. Transparent Teflon tube; D. Acrylic plastic) fully Protected by C-cut frame.
These gauges are custom manufactured accord - ing to the C-C distance reuired. It is avail - able in single length of 2000 mm C-C Distance.We can extend the CC length by PVC tube.
We are providing Air Vent Plug at top & drain plug at bottom for taking sample. We can also provide Inbuilt Isolation Valve on request. PP construction is made with all PP isolation valves & internals
Glass tube water level meter, simple structure, small volume, light weight, material consumption, small installation size, and easy to operate, fast.Suitable for urban construction, chemical, metallurgy, petroleum, pharmaceutical, food, beverage, environmental protection and other industries.

Applications of Oil Liquid Level Indicator Sight Glass Gauge Glass Tube Level Gauge

1. General Machinery Lubricating Oil Tanks

Gearboxes, hydraulic stations, rolling mill thin oil stations, air compressor oil tanks. Directly observe lubricant volume to prevent oil shortage and equipment abrasion. Brass valve small glass tube oil gauges are widely used for low-cost routine monitoring.

2. Generator & Diesel Engine Fuel Tanks

Diesel generator sets, agricultural machinery fuel tanks, vehicle auxiliary oil boxes. Check residual fuel visually; simple structure, easy on-site inspection without power supply.

3. Boiler & Thermal Oil Heating Systems

Heat conduction oil expansion tanks, fuel oil storage auxiliary tanks. Monitor oil level to avoid dry burning and oil overflow faults.

4. Light Industry & Factory Central Oil Depots

Small diesel, lubricating oil storage barrels and transfer tanks. Low pressure normal temperature oil medium, economical glass tube oil gauges meet daily patrol observation demands.

5. Hydraulic Equipment & Injection Molding Machines

Injection molding, stamping machine hydraulic oil tanks. Quickly judge oil shortage or oil leakage faults during equipment maintenance.

6. Construction & Agricultural Machinery Equipment

Excavator auxiliary oil tanks, irrigation diesel power machine oil boxes, breeding heating fuel tanks. Outdoor low-pressure working condition, easy to replace broken glass tubes on site.

Core Matching Advantages

Fully mechanical, no electricity, reliable for power-off equipment.
Low price, simple installation, spare parts cheap and easy to obtain.
Clear transparent glass, direct real-time observation of oil height and oil quality.
Compact size, fits narrow installation space on small oil tanks.

Limitations

Only for low-pressure normal-temperature light oil media; not applicable for high-temperature, high-pressure or corrosive oil.

Glossary of Glass Tube Oil Level Gauge

Complete Products

Glass tube oil level gauge,Glass tube oil sight,Tube type level indicator,Direct reading oil sight gauge,Side-mount oil level gauge

Key Components

Sight glass tube / Glass level tube,Quartz glass tube,Brass cock valve,Upper & lower stop cock,Drain cock,Sealing gasket,Self-sealing steel ball,Flange connector,Protective cover

Specification & Working Condition Terms

Low pressure type,Normal temperature,Hydraulic oil tank,Gearbox,Lubricating oil,Diesel oil / Fuel oil, Center distance,Nominal pressure (PN),Nominal diameter (DN)

Functional Descriptions

Local direct reading;Leak-proof;Anti-break safety design; Drainable; Visible oil level; Vertical installation

Common Failures & Solutions for Glass Tube Oil Level Gauge

Oil leakage at valve joints

Cause: Aging, cracked or uneven gaskets; loose bolts/cocks.

Solution: Replace intact gaskets; tighten fasteners evenly diagonally.
Blurred, foggy glass tube, hard to read oil level

Cause: Oil dirt, carbon deposit and scale attached on tube inner wall.

Solution: Close cocks, drain oil, remove and clean the glass tube thoroughly.
Glass tube broken

Cause: Impact, uneven bolt tightening, thermal shock.

Solution: Shut off valves to isolate the gauge; replace new glass tube and install protective cover.
Cock valve stuck, cannot open/close smoothly

Cause: Oil sludge, impurities stuck inside valve cavity.

Solution: Discharge residual oil, rinse valve body; replace the cock if severely jammed.
False oil level, slow liquid level response

Cause: Air trapped inside the glass tube; blocked connecting pipeline.

Solution: Open drain cock to exhaust air; clear blockages in connecting pipes.
Self-sealing steel ball fails to block oil after tube breakage

Cause: Ball stuck by dirt, can not slide freely.

Solution: Disassemble and clean the cock, ensure steel ball moves flexibly.

Oil Liquid Level Indicator Sight Glass Gauge Glass Tube Level Gauge