The standard range of viewports available through Laser Support Services Ltd., can be mounted on CF, ISO-KF & ISO-LF flanges, and employ 7056 Kodial glass as the window material. The window itself is sealed with a Kovar carrier which is subsequently welded into the host flange. Due to the Kovar alloy, standard viewports are magnetic. Standard viewports can be baked to a maximum of 400'C (depending upon host flange). Due to differing coefficients of thermal expansion of the materials used in construction, a maximum temperature gradient of 25'C per minute should be adhered to during heating and cooling.
Please contact us to discuss your requirements in detail or if you have any further questions.