Double Window Sight Glass

Allied Valves India is a leading Double Window Sight Glass Manufacturer and Supplier in Ahmedabad, Gujarat. We supply dual-side visibility sight glasses for high-temperature applications to process industries across India.

What is a Double Window Sight Glass?

A Double Window Sight Glass is a flanged pipeline fitting with two toughened borosil glass windows positioned on opposite sides, allowing dual-side visibility of process fluid for clearer, well-lit flow observation. Built in MS, CF8 (SS 304), or CF8M (SS 316), with flanged end connections to ASA 150#, it’s suitable for high-temperature applications. Available in sizes 15mm to 150mm, with 4-inch or 6-inch length options. Explore our Sight Glass range or compare with our Single Sight Glass.

Key Features of Double Window Sight Glass

• Double-window design for dual-side flow visibility
• Material: MS, CF8 (304), or CF8M (316)
• Glass type: Toughened Borosil
• Length options: 4-inch or 6-inch
• End connection: Flanged End ASA 150#
• Pressure rating: As per ASA 150# standards
• Suitable for high-temperature applications
• Size range: 15mm to 150mm

Applications of Double Window Sight Glass

Widely used in chemical processing, oil & gas, power plants, and high-temperature process piping where dual-side visibility is needed for reliable flow observation in demanding operating conditions.

Benefits of Double Window Sight Glass

• Dual-window design improves visibility with better lighting from both sides
• Toughened Borosil glass withstands high-temperature service reliably
• Wide material options (MS, CF8, CF8M) suit varied process conditions
• Flanged ASA 150# connections ensure secure pipeline installation
• Multiple length options offer installation flexibility
• Durable construction suited for demanding industrial environments

Working of Double Window Sight Glass

The Double Window Sight Glass is installed in-line within the pipeline via its flanged connections, with toughened borosil glass windows sealed on both sides of the flow path. As process fluid passes through, light entering from one window illuminates the flow, making it visible through the opposite window. This dual-window arrangement gives operators a clearer, better-lit view of flow condition, color, or clarity compared to single-window designs, particularly useful in high-temperature or low-light installations.

Why Choose Allied Valves?

Allied Valves India manufactures Double Window Sight Glasses using toughened borosil glass and durable body materials suited to high-temperature applications. With flanged ASA 150# connectivity, multiple length options, and years of industry experience, we deliver fittings built for dependable, long-term performance.

Explore our Sight Glass range, or Get a Quote today.