L.J. Star, Inc
Bolt-On Sight Window ASME B16.5 Raised Face (RF) Class 150
This bolt-on sight window fits a standard ASME B16.5 Class 150 flange. This an RF (Raised Face) type flange. It's easy to visually identify this type of flange by the sealing surface raised above the bolt circle area. Raised face surface provides a smaller contact area for the gasket, thereby increasing the compression force and thus a more uniform sealing capability than a flat face flange.The base flange mounts to the mating flange using traditional installation methods using mounting bolts. The base flange is sealed to the customer vessel with a gasket. A glass window is then inserted into the base flange sealing with a seal gasket. The glass window is sandwiched between the sealing gasket and a cushion gasket protecting the window from vibration. A flange retainer completes the assembly landing onto the cushion gasket. The flange retainer is held by cap screws to the base flange.
L.J. Star Incorporated
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The GD&T and parameter information in the catalog is for reference only. Manufacturing processes and resulting tolerances may result in variations in the specifications provided. Many manufacturers consider their tolerances proprietary and do not provide this to Encole. While we believe the information to be generally correct, it is subject to change without notice and is not guaranteed. Drawings and CAD models are prepared by the Original Manufacturers, CAD expert community contibuting to Encole or staff at Encole.