Steel & O’Brien Sanitary Sight Glasses

Steel & O’Brien sanitary sight glasses provide a clear, reliable view into your processing line—making it easier to monitor product flow, verify line cleanliness, and detect issues before they affect quality or safety. With multiple styles, gasket options, and viewport materials available, these sight glasses are built for performance in food, beverage, brewery, winery, and tank applications where hygiene and visibility matter.

Key Features

  • Multiple Styles Available: Choose from bolt-style sight glasses with optional acrylic shields or compact socket head cap screw styles for tight spaces.
  • High-Performance Materials: Standard units feature borosilicate glass and Buna-N gaskets; alternate materials include acrylic, polycarbonate, EPDM, FKM, PTFE, and silicone.
  • Versatile End Configurations: Available in clamp, bevel seat, I-Line, Q-Line, and John Perry connections to match your setup.
  • Sanitary Compliant Construction: Meets or exceeds standards for internal and external material finish and cleanliness.
  • Traceability Built In: Each stainless steel sight glass is clearly marked with alloy, heat number, and size—then capped and bagged for protection.

Broad Selection of Sanitary Sight Glasses

clear acrylic sight tubes

Clear Acrylic Sight Tubes

clamp cap sight glasses

Clamp Cap Style Sight Glasses

Steel & O'Brien® Bolt Style Sight Glass

Steel & O'Brien® Bolt Style Sight Glass

bolt style sight glasses

Bolt Style Sight Glass

socket head cap screw sight glasses

Socket Head Cap Screw Sight Glasses

cross style sight glasses

Cross Style Sight Glasses

Sight Glass Flange Cap

Flange Cap Style Sight Glasses

Shield Clamp Concentric Sight Glasses

Shield Clamp Concentric Sight Glasses

Ensure Visibility Without Compromising Cleanliness

Sanitary sight glasses play a critical role in maintaining visibility in hygienic systems without requiring you to open the line. That means:

  • No unnecessary exposure to potential contaminants.
  • Quick identification of blockages or fluid level issues.
  • Better quality control across the production line.

Installed at key points, these components help teams maintain process oversight without disrupting flow or risking contamination—essential for industries where safety and precision are everything.

Why Choose Steel & O’Brien Sight Glasses?

  • All sight glasses are manufactured to meet or exceed sanitary standards for surface finish, reducing the risk of microbial growth or contamination.
  • Multiple styles, materials, and end types ensure a perfect fit for your specific process requirements.
  • Each unit is individually marked with alloy, heat number, and size, and capped and bagged after inspection for full traceability and clean delivery.
  • Used by top processors in the food, beverage, and pharmaceutical sectors who demand consistency, visibility, and cleanliness.

Product Resources

DOCUMENTS
Have Questions? We're Here to Help
Contact us today to find out more about our products and services.