316 Stainless Steel Sanitary Grade Pyrex Glass with Stainless Steel Safety Shield Maximum Operating Temperature: 200°F Maximum Operating Pressure: 95-145 PSI (Size Dependent) Working PSI/Temperature Assume Absence of Thermal Shock Field Servicable Sight Glasses provide capability for visual inspection of media in the process line. The Tri-Clamp connection allows for easy disassembly and cleaning. The safety shield is a protective layer that does not impede view, and may be best for high-traffic environments. Gaskets and clamps are required to secure in line.