Metaglas, Herberts Industrieglas GmbH & Co. KG
NPT-Threaded Fused Sight Glass, Borosilicate Windows
Thread: NPT 1/4, Housing Material: Hastelloy C-22
Metaglas fused sight glass for use with all common hydraulic oils, refrigeration, water heaters, and compressed air applications. Fusing glass to metal creates a strong, hermetically sealed single-piece part. The advantage of this construction is high strength of the glass, which ensures safety of operation, even during cycling operating temperatures common with equipment starts and stops. The part is easy to install and has a long working life without maintenance. This sight window has NPT threads conforming to ASME B1.20.1. Note: The image of the objects behind the glass may be distorted closer to the edges of the aperture diameter as the glass is slightly concave. This is due to the fusing process.
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Met-61-025H
Metaglas, Herberts Industrieglas GmbH & Co. KG