For Viewing of kinds in pipe lines, Different type of sight glasses can be offered like full view type double window type etc. FULL VIEW TYPE: Means of viewing the process to assure that the flow is continuous or Note the process turbidity, color etc. Full view type sight glass consists of a borosilicate glass pipe section fitted with a metal frame and both the flanges of frame welded with studs and the end of the glass pipe section sealed with Teflon bushes (top & bottom) with 2 nos. of Teflon washers. Other Related Products: DOUBLE WINDOW TYPE