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Sanitary Glass Window

Sanitary Glass Window

What Is a Sanitary Glass Window?

A Sanitary Glass Window is a sealed optical device installed in sanitary piping systems. Made with hygienic materials and smooth finishes, these windows allow visual monitoring of liquids or gases in sterile processes.

In industrial processing systems where hygiene and precision are paramount, Sanitary Glass Windows serve as critical components for process observation and industrial flow monitoring. These specialized sight glasses are installed in pipelines, tanks, and reactors, enabling operators to visually inspect the flow, clarity, and presence of fluids without compromising the system's integrity or cleanliness. Whether in pharmaceutical, food and beverage, or biotechnology applications, these windows ensure that production complies with strict sanitary standards while allowing for real-time decision-making.

Key Benefits of Using a Sanitary Glass Window

  • Enhanced process safety and control: Sanitary sight glasses provide direct, non-invasive visual access to the process stream, eliminating the need to open tanks or pipes. This reduces contamination risks and enhances safety in sterile environments.
  • Real-time visual inspection: Operators can make quick assessments about product flow, consistency, and cleanliness, allowing for timely interventions.
  • Regulatory compliance: Sanitary glass windows support compliance with industry regulations such as FDA (Food and Drug Administration) requirements.

Weld to tank sight glass

Sanitary SMS Connection

The Douglass Weldable Tank Sight Glass with SMS (Sanitary Mechanical Seal) Connection is an advanced sight glass designed for seamless integration into tanks where cleanliness and durability are paramount.

Engineered for industries demanding high standards of hygiene, this sight glass provides clear visibility of the tank's interior, ensuring precise monitoring of processes and fluid levels.

More details
Tank weldable sight glass sanitary SMS connection

Parts and materials

Exploded view — tank weldable sight glass sanitary SMS connection (numbered parts)
ItemPart nameMaterial options
1Support
  • Stainless Steel 316L
  • Stainless Steel 304
2Cover flange
  • Stainless Steel 316L
  • Stainless Steel 304
3Gasket (max temp)
  • Buna
  • Neoprene
  • Teflon
  • Sanitary rubber
  • EPDM
  • Viton
4Sight glass
  • DIN 7080 tempered borosilicate
  • DIN 8902 tempered soda lime
  • Polycarbonate
  • Quartz
5Base
  • Stainless Steel 316L
  • Stainless Steel 304
IDA (Total Diam)B (Visible Diam)
1"51.00 mm22.50 mm
1.5"74.00 mm35.50 mm
2"84.00 mm48.50 mm
2.5"100.00 mm60.50 mm
3"114.00 mm72.00 mm
4"154.00 mm97.60 mm

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