Neocision Sight Glass Tempered Strengthened Soda Lime Glass The 3 piece Neocision certified sight glasses offer a greater chemical resistance, viewing area, and cleanability compared to a traditional sight glass such as polycarbonate or Metaglas sight glasses. These Tri-Clamp sight glasses consist of 3 pieces: the tempered glass disc, Viton x-profile gasket, and custom tri-clamp ferrule. When used in combination with high-pressure clamps the working PSI is rated at 250 PSI (3rd party tested). These glasses are also resistant to thermal shock, enduring extreme heating and cooling temperatures. A Viton Tri-Clamp gasket must be used to conform with the certification ratings, and and is included. ***Disclaimer: Please handle with care when installing on to a system and do not overtighten or the glass disc may chip if the clamp torque ratings are exceeded. Clamp Torque Specification Sheet Sizes Available: 1.5" Tri-Clamp 2" Tri-Clamp Ferrule Material 304 Stainless Steel Glass Material Tempered Soda Lime Gasket Material Viton(FKM) Connection Type(s) Tri-Clamp PSI Rating 250 PSI Negative Temperature Rating -40C BVV Neocision Sight Glass - Certified Data Sheet