Spectacle Blind Dimensions Pdf

Click on the link to learn about the chemical and mechanical properties and the selection criteria of these common spectacle blind grades which are the same as.

Spectacle blind dimensions pdf. Spectacle blind type 3. Spectacle blinds should be made from a plate or forging specification approved for use by asme b31 3 of essentially the same chemical composition as the mating flanges. A spectacle blindis a combination of a single blind solid plate and a ring spacer manufactured for field convenience as a single unit. Paddle blank type 1 click any image above to enlarge it and lock it in place then scroll to the bottom table for dimensions spectacle blind flange classes choose your pressure class below.

Asme b16 48 standard that covers line blanks. Line size isolation 150 300 600. Raised face spectacle blind standard dimensions as per asme b16 48 hole size shall be same as the flange bolt hole and located such that is will not interfere with bolting between flanges the thickness of handle or web tie bar shall be capable of supporting height of all orientations. Class 150 spectacle blind line blank.

Usa ez vent blinds. Class types of the spectacle blind. A spectacle blind is a safety device used to isolate a section of line or a piece of equipment when the line or equipment needs to be inspected or removed from service. Usa ez purge blinds.

Please use the select menus above or scroll horizontally to view the data you re looking for. Spectacle blinds are available in standard sizes up to 24 inches and in forged material grades like astm a105 high temperature carbon a350 low temperature carbon and various astm a182 grades alloy stainless steel duplex. Ansi asme b16 48 spectacle blind flanges ansi asme b16 48 class 150 spectacle blind flanges ansi asme b16 48 class 300 spectacle blind flanges ansi asme b16 48. Spectacle blind type 4.

Sometimes people use term spec blind flanges or brake flange but you should know that they are two different items. In practice these dimensions have been rounded round off upwards. Raised face spectacle blind flange spectacle blind flange standard dimensions as per asme b16 48 hole size shall be same as the flange bolt hole and located such that is will not interfere with bolting between flanges the thickness of handle or web tie bar shall be capable of supporting height of all orientations. Dimensions of class 600 blind and spacer t weld 125 to 250 rms o weld o b t asme b16 48 blinds and spacers outside diameter o 1 2 3 4 1 1 1 4 1 1 2 2 2 1 2 3 3 1 2 4 5 6 8 10 12 14 16 18 20 24 0 62 0 82 1 05 1 44 1 68 2 16 2 64 3 26 3 76 4 26 5 30 6 36 8 33 10 42 12 39 13 62 15 62 17 62 19 56 23 50 nps inside diameter b thk t in.

This standard covers the spectacle blind spades and spacers with pressure class 150 300 600 900 1500 and 2500 as listed in asme b16 5. Print pdf 8 5 x 11 print pdf 11 x 17. Wt thickness of the web or tie bar should be 6 mm minimum or equal to thickness t if less than 6 mm.