Lens gaskets are reusable, as the sealing effect is generally achieved by elastic deformation of the surfaces.
Lens gaskets are impervious to overpressure. With increasing loads, the contact surface between the spherical lens surface and the spherical flange groove increases, so that the surface pressure only increases to a lesser extent.
We can also specially produce bellows lenses, lens blind spectacle gaskets and half-lenses.
Lens blind spectacle gaskets are made of a sealing lens and a lens blind, which are connected by a ligament. It is also usual to use lens blinds on their own. In this case, it is useful to weld on a small plate to render the lens blind distinguishable.
|Steel type designation||Materialnumber||for circulatory temperatures||Code designation on outer edge|
|16Mo3||1.5415||425 to 475||1 Marking|
|13CrMo4-5||1.7335||425 to 520||2 Markings|
|10CrMo9-10||1.7380||520 to 580||3 Markings|
|X6CrNiTi18-10||1.4541||350 to 550||4 Markings|
|12CrMo19-5||1.7362||Max 650°C||1 Notch|
|X6CrNiMoTi17-12-2||1.4571||Max 550°C||3 Notches|