Spectacle Blind Thickness Charts

Wt thickness of the web or tie bar should be 6 mm minimum or equal to thickness t if less than 6 mm. Flanges table flanges dimensions flanges standard chart flanges size chart we export. A spectacle blind is used in piping for positive isolation of the section of a line or equipment during maintenance and shutdown.

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Line size isolation 150 300 600 900 1500 2500 thickness o d.

Spectacle blind thickness charts. In practice these dimensions have been rounded round off upwards. 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 and piping involved. 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.

Bolting chart for flanges. Includes both mss sp44 series a and api 605 series b ratings. Spectacle blind flange manufacturers in india spectacle blind flange raised face spectacle blind flange dimensions spectacle blind flange asme b16 48 spectacle blind flange flat face jis spectacle blind flange spectacle blind flange price spectacle blind flange material spectacle blind flange rf spectacle blind flange weight spectacle blind flange spectacle blind flange asme b16 48 table.

Thickness based on asme rating and line size for isolation or hydrotest blinds. Flanges table flanges dimensions flanges standard chart flanges size chart india. Paddle blind dimensions with hydrotest thickness chart.

Spectacle blinds for use with flanges. An 8 blind or a spectacle blind is a piping fitting that is used for providing positive isolation. This standard covers the dimensions for spectacle blind spades and spacers with pressure class 150 300 600 900 1500 and 2500 as listed in asme b16 5.

Rtj face dimensions and flange tolerances. A spectacle blind is basically made up of two metal discs attached to each other by a metal strip as shown in the figure. Thickness chart inches rf spec blinds rf paddle blinds rtj spec blinds rtj paddle blinds updated may 1 2017 1 2 3 4 1 1 1 2 2 2 1 2 3 3 1 2 4 5 6 8 10 12 14 16 18 20 24.

Asme b16 48 standard that covers line blanks. One is solid disc and the other is hollowed. Line sizes up to 96 are available.

Vented paddle blinds spacer rings safety blinds transition piping rf and rtj sa516 70n sa350 lf2 carbon steel 316 l 304 l stainless steel. 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. 1 2 5 16 1 3 4 5 16 2 5 16 2 5 16 2 3 8 5 16 2 3 8 5 16 2 5 8 3 8 3 4 5 16 2 1 8 5 16.

Any thickness rating or alloy is available upon request. Uae saudi arabia qatar oman malaysia sinagapore indonesia sudan israel south africa kenya metal industries is a professional steel flanges and forgings manufacturer in india specialize in manufacturing.

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