The stainless steel slide arrangement in the gate gives added protection and life to the lens during operation, and allows maintenance to be performed with added safety during vessel down-time. SAF Viewports units are for use in low-pressure applications (5 PSI) where 100% shutoff is not required. The Gate View Ports use the SAF Viewports standard line of gates as the primary Threaded Gate View Port component and incorporate a glass lens, gaskets, and rings that are securely retained with a metal bushing.
Additional cooling can be obtained by adding a purge connection on the glass or vessel side of the gate housing. Standard purge is at 3 o’clock but may be customized upon request.
Threaded sizes range from 2″ to 6″ NPT threaded openings. Two choices of glass are available for varying temperature exposures and viewing requirements.
The standard unit is a Class 30 gray iron with a maximum temperature of 425 °F. Custom units made from Carbon Steel and Stainless Steel by special order.
