These types of flanges can in fact be supplied with or without hub as per the needs provided by the customer.Meanwhile, from the point of view of inner pressure and bolt loading, these blind flanges, predominantly in bigger sizes, are the most greatly stressed flange types. However, most of these stresses are bending types close to the centre, and as there is no standard within diameter, these flanges are appropriate for superior pressure temperature appliances.
Size | : | 1/8" NB TO 48"NB. |
Standards | : | ASTM A182 - ASME SA182, ASME B16.5, ASME B16.36, ASME B16.47. |
DIN | : | IN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673 |
B.S | : | BS4504, BS4504, BS1560, BS10 |
Class | : | 150#, 300#,400#,600#,900#, 1500# & 2500#. |
Material of Construction | Standard | Grades |
Stainless Steel Blind Flanges | ASTM A182 , A240 | F 304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H,317, 317L, 321, 321H, 347, 347H, 201, 202, 904L |
Carbon Steel Blind Flanges | ASTM A105 | Gr. F42,46,52,56,60,65,70 |
Alloy Steel Blind Flanges |
ASTM A182 | F1,F5,F9,F11,F22,F91 |
Copper Alloys Blind Flanges | ASTM SB 61 , SB62 , SB151 , SB152 | UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200, |
Nickel Alloy Blind Flanges |
ASTM SB564, SB160, SB472, SB162 | Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No.N08020), |
Duplex & Super Duplex Steel Blind Flanges |
ASTM A182, A240 | UNS S31803, UNS S32205, UNS S32750, UNS S32950 UNS F 44, F 45, F51, F 53, F 55, F 60, F 61 |
Low Temperature Carbon Steel Blind Flanges | ASTM A350 | LF2 , LF3 |
ASTM A105 Gr. F42 Blind Flanges | ASTM A105 Gr. F46 Blind Flanges |
Carbon Steel ASTM A105 Gr. F52 Blind Flanges | Carbon Steel ASTM A105 Gr. F56 Blind Flanges |
ASTM A105 Gr. F60 Blind Flanges | ASTM A105 Gr. F65 Blind Flanges |
Carbon Steel ASTM A105 Gr. F70 Blind Flanges | Carbon Blind Flanges |
Carbon A105 Blind Flanges | Carbon Steel BLRF Flanges |
ASTM A182 Gr. F1 Blind Flanges | ASTM A182 Gr. F5 Blind Flanges |
Alloy Steel ASTM A182 Gr. F9 Blind Flanges | Alloy Steel ASTM A182 Gr. F11 Blind Flanges |
ASTM A182 Gr. F22 Blind Flanges | ASTM A182 Gr. F91 Blind Flanges |