A sight glass is used for looking inside a process vessel or pipeline. They have wider applications like, port holes for ships, ovens, kettles, furnaces, stills, pressure vessels, chemical tanks, etc.
Sight glasses used in port gauges are small round glasses and have high-pressure applications. These glasses come in kit form. Protection sight glasses are used for cnc machines. Shaped sight glasses produce almost any flat shape for lighting or other industrial applications with the use of a waterjet cutting facility. The oblong sight glass provided with bolt-down lens retainer cap, and is designed for adaption to new or existing equipment to become an integral part of a vessel shell.
These glasses can be manufactured from borosilicate glass panes to provide maximum protection against elevated temperature. And standard epoxy coated body designed to maximum atmospheric corrosion protection. They are available in both toughened and annealed forms.
