High-pressure sight glass type 521 with weld ends
Visual survey of flow and filling processes in piping. The sight glasses allow for a reliable observation of function and performance of single devices or complete plants. With this design, no significant amount of liquid will remain in the sight glass when installed horizontally. With standard sight glasses, liquid will remain in the sight glass body. This liquid will drain out with this design.
C.22.8, 1.4541, 1.4571, (all weldable materials)
Straight through with butt weld ends
Optionally available in three-way or four-way shape.
from DN 15 to DN 200 (The design is order-related. Not every nominal pressure is possible at any size)
up to max. 1000 bar
With borosilicate glass up to max. 280 ° C
With quartz glass up to max. 500 ° C
(Higher temperatures on request)
The design is order-related.
Optional versions are possible.