Stainless Steel Sight Glasses

These sight glasses are rated to a maximum operating pressure of 150 PSI. The borosilicate glass withstands temperatures from -40°C up to 500°C (400°F), making them suitable for demanding thermal cycling and high-temperature processing applications in industrial and pharmaceutical environments.

Yes. The borosilicate glass used is compliant with FDA 21CFR177.2600 and FDA 21CFR177.1550, and is approved under 3-A Sanitary Standards and USDA guidelines. This makes the sight glasses fully suitable for pharmaceutical-grade, food-safe, and USDA-regulated dairy and food production applications.

The body of the sight glass is manufactured from 316 stainless steel, which offers excellent corrosion resistance in sanitary and aggressive chemical environments. The viewing window uses pharmaceutical-grade borosilicate glass, known for its superior chemical resistance, thermal stability, and optical clarity.

Yes. The seamless tri-clamp end cap ferrule design is fully compatible with any standard tri-clamp line, clamp, and gasket. This ensures easy integration into existing sanitary piping systems without the need for custom adapters or modifications to your current process setup.

Stainless steel sight glasses are widely used in pharmaceutical and biotech processing, food and beverage production, dairy and USDA-regulated facilities, chemical processing, petroleum handling, hemp and cannabis extraction, and nutraceutical manufacturing — anywhere visual inspection of inline fluid flow is required.

Borosilicate glass is a specialized glass composition with very low thermal expansion and high resistance to chemical attack. It is preferred for industrial sight glasses because it withstands extreme temperature swings and exposure to aggressive chemicals, acids, and solvents without cracking or degrading, ensuring long-term reliable visual inspection.