level gauge, sight glass
Glass Plate Level Gauge Reflex Type “IWAKO”
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Glass Plate Level Gauge Reflex Type “IWAKO”
Glass Plate Level Gauge Reflex Type : A Glass Plate Level Gauge of the reflex type is a device used to measure the level of liquids in tanks and vessels. It operates on the principle of light refraction and reflection to indicate the fluid level.
Level Gauge Reflex Plate Sight Glass Construction and Working Principle:
-Construction:
The gauge consists of a metal body that houses a glass plate with one side having a series of prismatic grooves. The body has connections that align with the process vessel so the liquid level inside the gauge corresponds to the liquid level in the vessel.
-Reflex Glass:
The glass on the reflex level gauge has a special prismatic pattern on the side facing the liquid. This design is key to how the level indication works. The glass is made to be very durable and able to withstand industrial environments.
Level Gauge Reflex Plate Sight Glass Working Principle:
When there is liquid on the other side of the reflex glass, the prisms cause light to be absorbed by the liquid, which makes this area appear darker. Conversely, in areas where there is no liquid, the light is reflected, making these areas appear silver or white.
Level Gauge Reflex Plate Sight Glass Advantages:
High Visibility: The contrast between the liquid and the empty space in the tank is stark, making it easy to read.
Durability: The reflex glass is designed to withstand high pressure, temperature, and corrosive materials.
Cost-Effective: Reflex type gauges are typically less expensive than transparent types.
Level Gauge Reflex Plate Sight Glass Applications:
Reflex level gauges are commonly used in many industries, such as chemical, petrochemical, power plants, and other processing facilities.
They are suitable for non-transparent liquids where the color of the liquid does not matter for level indication.
Level Gauge Reflex Plate Sight Glass Maintenance:
While robust, the reflex glass can be subject to fouling or damage from harsh fluids or conditions and should be regularly inspected and cleaned.
Gaskets and seals may need to be replaced periodically to ensure there are no leaks.
Level Gauge Reflex Plate Sight Glass Safety:
Many reflex level gauges are equipped with safety features like automatic ball check valves that close if the glass breaks to prevent spillage.
Additional protective measures such as mica shields can be used to protect the glass from steam or corrosive fluids.
In conclusion, reflex type glass plate level gauges are a reliable and straightforward method for indicating liquid levels in various industrial applications. Their design allows for clear visibility and a relatively simple setup while providing a durable solution for level measurement.
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