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Sight Glasses and Flow Indicators

Sight Glass and Flow Indicator

The sight glass, also known as a flow indicator, is an essential tool for observing the flow of fluids within pipelines and tanks. With its simple yet effective structure, it allows operators to visually monitor fluid passage, ensuring constant and safe control.

There are different types of sight glasses, each designed to meet specific industrial needs:

Materials: Carbon Steel, Stainless Steel, Alloy Steel, and Exotic Materials

Glass Types: Tempered Glass and Borosilicate Glass

FORGED SIGHT GLASS

Construction: Screwed or bolted

Pressure Ratings: PN 20/40

Sizes: from ¼” to 2”

Connections: SW, NPT, GAS, BW

Materials: Carbon Steel, Stainless Steel, Alloy Steel, and Exotic Materials

Glass Types: Tempered and Borosilicate

CAST SIGHT GLASS

Construction: Bolted

Pressure Ratings: ANSI 150# / 300#

Sizes: from ½” to 10”

Connections: RF, RJ

Sight glasses are commonly made of stainless steel, ensuring robustness and corrosion resistance. The connections can be threaded, flanged, or welded, depending on the installation requirements. The type of glass used is crucial for the device’s thermal resistance:

   – Tempered Glass: can withstand temperatures up to 180°C.

   – Borosilicate Glass: can withstand higher temperatures, up to 220°C.

This variety of materials and configurations allows the use of sight glasses in environments with different operating conditions, always maintaining high reliability.

At MAGVALVES, we understand the importance of having quick access to high-quality components. Therefore, we offer a wide range of sight glasses with fast delivery, ensuring that our customers can maintain their operations without interruption. Whether it’s free-flow sight glasses, customized, or tank-specific indicators, our commitment is to provide reliable and timely solutions.

   – Free-Flow Sight Glasses: These indicators allow direct flow monitoring without any obstruction. Composed of two opposing view glasses, they let ambient light illuminate the flow, offering optimal visibility.

   – Customized Sight Glasses: For applications requiring more detailed control, we offer customized sight glasses with balls, rotors, vanes, and thermocouple fittings. These variants enhance monitoring precision, adapting to specific requirements.