IMPA: 813201

Reflex Flat Gauge Glasses for Marine Boiler Water Level Indication

Our reflex flat gauge glasses are precision-engineered for marine boiler water level gauges, offering reliable visual indication of liquid levels in boiler drums, tanks, and pressure vessels. Constructed from high-grade borosilicate glass, these sight glasses withstand high temperatures and pressures while providing clear, distortion-free visibility. The reflex design features a prism-like surface that makes the water level appear distinctively black-and-white for easy reading.

Specifically referenced under IMPA 813201 and categorized under Packing & Jointing (IMPA 81), these flat gauge glasses are manufactured to standard marine and industrial specifications. They are suitable for ship chandler supply to vessels, offshore platforms, and industrial plants. Available in various standard lengths and thicknesses, these glasses are designed to fit a wide range of gauge assemblies without modification.

Whether you're replacing a damaged sight glass or stocking up on essential boiler fittings, these reflex flat gauge glasses offer durability and accurate liquid level indication essential for safe operation. Trust our marine ship store to provide high-quality maritime supplies that meet the demanding needs of the marine industry.

Key Features

Technical Specifications

SpecificationValue
MaterialBorosilicate glass
TypeReflex flat gauge glass
IMPA Code813201
Category81 Packing & Jointing
ShapeFlat, rectangular
Sizes Available4" (100mm), 6" (150mm), 8" (200mm), 10" (250mm), 12" (300mm)
Thickness5mm (3/16"), 6.4mm (1/4")
Operating TemperatureUp to 250°C (482°F)
Operating PressureUp to 30 bar (435 psi)
SurfaceHigh-strength, heat-strengthened glass
ApplicationBoiler water level gauges, tank level indicators

Frequently Asked Questions

What is a reflex flat gauge glass?

A reflex flat gauge glass is a type of sight glass used in boiler water level gauges. The reflex prism creates a sharp contrast between water and steam, making level indication clear and easy to read in marine applications.

How do I choose the correct size?

Measure the length, width, and thickness of your existing gauge glass, or refer to your gauge assembly's specifications. Our standard sizes include various lengths; ensure a proper fit for a leak-tight seal.

What is the maximum operating temperature and pressure?

These reflex flat gauge glasses are designed to withstand temperatures up to 250°C and pressures up to 30 bar, making them suitable for typical marine boiler systems.

Are these gauge glasses compatible with all marine boilers?

They are manufactured to standard marine and industrial specifications (IMPA 813201) and are designed to fit most common reflex gauge assemblies. However, always verify dimensions and ratings before installation.

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