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Blind/ Blank Flanges (BLRF)

 


The blind flange is used to close ends of piping systems. It is a kind of round plate with no center hold but with all the proper bolt holes. This blind flange is available in various sizes and materials and is used to provide positive closer on the ends of pipes, valves or equipment nozzles. This flange helps in easy access to a line once it has been sealed. The blind flange is sometimes custom made or machined to accept a nominal sized pipe to which reduction is being made. This reduction can be a threaded reduction or welded reduction.

Blind Flange
Size :- ½” NB  to 50”NB
Class :- 150#, 300#, 400 #, 600#, 900#, 1500# & 2500 #
Stainless Steel :- TP 304, 304L, 316, 316L, 316Ti, 309, 310, 310S, 317L, 321, 347
Carbon Steel :- ASTM A 105/106, ASTM A 181
Alloy Steel :- ASTM A 182, GR F1, F11, F22, F5, F9, F91
Non Ferrous :- Copper  , Brass , Gun Metal
Nickel Alloys :- Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22,C276
Duplex Steel :- ASTM / ASME A182 F 44, F 45, F51, F 53, F 55, F 60, F 61
 
Standard Of Flanges
ANSI Flanges :- ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
DIN Flanges :- DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673
   
 

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