Rectangular sightglass
Nominal sizes:
Various lenghts available from 170 x 70 mm offering a view of 120 x 18 mm to 1000 x 70 mm offering a view of 4 x 204 x 18 mm
Materials:
Base frame in stainless steels 316Ti (1.4571) or 321 (1.4541) or boilerplate
Cover frame: As base frame
Seals: Neoprene, KLINGERsil C4400, PTFE, Viton