Nextgen Steel & Alloys is a reputed manufacturing company of Spacer Blind Flanges. We provide the highest quality products. These Spacer Blinds can be manufactured in a variety of sizes, materials, and pressure ratings. Our company manufactures all products using superior quality raw materials. As per customer requirements, we produce these Spacer Blinds. We manufacture these Spacer Blinds using various Super Duplex, Nickel Alloy, Stainless steel, etc.
Spacer Blind is a steel plate, and it is cut into two discs of equal diameter and thickness. One disc is a solid plate, while the other is a ring with an inside diameter equal to that of a flange. The inside diameter of the open end is equal to the pipe ID to facilitate flow from the line. The two discs are connected by a small section of metal as it looks like the numeric number Eight or a pair of eyeglasses. A ring shape plate is used when the pipeline needs to be open, and a solid plate is used when the pipeline needs to be closed. To switch between them, you need to remove half of the surrounding bolts and swap out a spade or spacer. The bolts can then be reinstalled and tightened.
Pipe Diameter, Pressure rating, Material for fabrication, Dimensional Standards, Facing type these details are required when these flanges are ordered. Our company provides these flanges are found in different face types such as the raised face, female ring – Joint blanks, male ring- Joint blanks. These Spacer Blind Flange provide flexibility during maintenance and operation, so that they are essential in designing the piping system. Our company offer these spacer blind are used in Inlets and outlets of static equipment, at inlets and outlets of rotary equipment, inlets and outlets of the fired heater and standard headers, in bypass line and unit battery limit.
Other Flanges Products:
Spacer Blind Flanges Dimensions
ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Spacer Blind Flanges Standard
ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Spacer Blind Flanges Size
1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Spacer Blind Flanges Class / Pressure
150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Pressure Calculation in DIN
6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
Spacer Blind Flange Face Type
Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Stainless Steel Spacer Blind Flanges :
ASTM A182, F304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L, SMO 254
Duplex & Super Duplex Steel Spacer Blind Flanges :
ASTM / ASME A/SA 182 F44, F45, F51, F53, F55, F60, F61 / Duplex 2205 – UNS S31803, UNS S32205 / Super Duplex 2507 – UNS S32750, UNS S32760
Carbon Steel Spacer Blind Flanges :
ASTM/ ASME A105, ASTM/ ASME A350 LF2, ASTM A694 & ASME SA694 F42 / F46 / F52 / F56 / F60 / F65 / F70
Alloy Steel Spacer Blind Flanges :
ASTM / ASME A182 F5 / F9 / F11 / F12 / F22 / F91
Inconel Spacer Blind Flanges : ASTM B564, Inconel 600 – UNS No. N06600, Inconel 601 – UNS No. N06601, Inconel 625 -UNS No. N06625, Inconel 715, Inconel 718 – UNS No. N07718, Incoloy 800 / 800H /800HT – (UNS No. N08800 / N08810 / N08811), Incoloy 825 – UNS No. N08825, Incoloy 925 – UNS No. N09925
Hastelloy Spacer Blind Flanges :
ASTM B/SB564, Hastelloy B2 – UNS No. N10665, Hastelloy B3 – UNS No. N010675, Hastelloy C4 – UNS No. N06455, Hastelloy C22 – UNS No. N06022, Hastelloy C276 – UNS No. N10276, Hastelloy C2000 – UNS No. N06200, Hastelloy X – UNS No. N06002
Nickel Spacer Blind Flanges : Nickel 200 – UNS No. N02200 , Nickel 201 – UNS No. N02201
Monel Spacer Blind Flanges :
ASME SB 564, Monel 400 – UNS No. N04400, Monel K500 – UNS No. N05500
Titanium Spacer Blind Flanges :
ASTM B381 / ASME SB381, Grade 2 – UNS No. R50400, Grade 5 – UNS No. R56400
Alloy 20 Spacer Blind Flanges :
ASTM B462 / ASME SB462 – UNS No. N08020
Class 150 Spacer Ring Dimensions
Normal Pipe Size | Outside Diameter A |
Inside Diameter B |
Center to End C |
Thick. t |
Handle Width W |
1/2 | 51 | 16 | 129 | 6.4 | 32 |
3/4 | 64 | 21 | 136 | 6.4 | 32 |
1 | 70 | 27 | 139 | 6.4 | 32 |
1.1/4 | 79 | 42 | 150 | 6.4 | 32 |
1.1/2 | 92 | 48 | 150 | 6.4 | 32 |
2 | 108 | 61 | 158 | 9.7 | 32 |
2.1/2 | 127 | 73 | 177 | 9.7 | 32 |
3 | 146 | 89 | 177 | 9.7 | 32 |
3.1/2 | 162 | 102 | 205 | 12.7 | 38 |
4 | 178 | 114 | 205 | 12.7 | 38 |
5 | 213 | 141 | 240 | 15.7 | 38 |
6 | 248 | 168 | 240 | 15.7 | 38 |
8 | 305 | 219 | 281 | 22.4 | 38 |
10 | 359 | 273 | 333 | 25.4 | 44 |
12 | 419 | 324 | 363 | 28.4 | 44 |
14 | 483 | 356 | 395 | 31.8 | 44 |
16 | 536 | 406 | 422 | 38.1 | 44 |
18 | 594 | 457 | 450 | 41.1 | 51 |
20 | 651 | 508 | 480 | 44.5 | 51 |
24 | 772 | 610 | 540 | 50.8 | 51 |
Class 300 Spacer Ring Dimensions
Normal Pipe Size | Outside Diameter A |
Inside Diameter B |
Center to End C |
Thick. t |
Handle Width W |
1/2 | 51 | 16 | 129 | 6.4 | 32 |
3/4 | 64 | 21 | 136 | 6.4 | 32 |
1 | 70 | 27 | 139 | 6.4 | 32 |
1.1/4 | 79 | 42 | 150 | 6.4 | 32 |
1.1/2 | 92 | 48 | 150 | 6.4 | 32 |
2 | 108 | 61 | 158 | 9.7 | 32 |
2.1/2 | 127 | 73 | 177 | 9.7 | 32 |
3 | 146 | 89 | 177 | 9.7 | 32 |
3.1/2 | 162 | 102 | 205 | 12.7 | 38 |
4 | 178 | 114 | 205 | 12.7 | 38 |
5 | 213 | 141 | 240 | 15.7 | 38 |
6 | 248 | 168 | 240 | 15.7 | 38 |
8 | 305 | 219 | 281 | 22.4 | 38 |
10 | 359 | 273 | 333 | 25.4 | 44 |
12 | 419 | 324 | 363 | 28.4 | 44 |
14 | 483 | 356 | 395 | 31.8 | 44 |
16 | 536 | 406 | 422 | 38.1 | 44 |
18 | 594 | 457 | 450 | 41.1 | 51 |
20 | 651 | 508 | 480 | 44.5 | 51 |
24 | 772 | 610 | 540 | 50.8 | 51 |
DN In inches | Dimension | ASME B16.48 Spacer Ring Dimensional Sizes 1/2 inches to 2 1/2 inches | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
125 LBS 150 LBS | 300 LBS | 400 LBS | 600 LBS | 900 LBS | 1500 LBS | 2500 LBS | ||||||||||
inches | millimeter | inches | millimeter | inches | millimeter | inches | millimeter | inches | millimeter | inches | millimeter | inches | millimeter | |||
1/2 | A | 3 1/2 | 88.9 | 3 3/4 | 95.2 | 3 3/4 | 95.2 | 3 3/4 | 95.2 | 4 3/4 | 121 | 4 3/4 | 121 | 5 1/4 | 133.4 | |
b | 7/16 | 11.1 | 9/16 | 14.3 | 9/16 | 14.3 | 9/16 | 14.3 | 7/8 | 22.2 | 7/8 | 22.2 | 1 3/16 | 30.2 | ||
D2 | 1 3/8 | 34.9 | 1 3/8 | 34.9 | 1 3/8 | 34.9 | 1 3/8 | 34.9 | 1 3/8 | 34.9 | 1 3/8 | 34.9 | 1 3/8 | 34.9 | ||
D1 | 2 3/8 | 60.3 | 2 5/8 | 66.7 | 2 5/8 | 66.7 | 2 5/8 | 66.7 | 3 1/4 | 82.6 | 3 1/4 | 82.6 | 3 1/2 | 88.9 | ||
n | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | – | 4 | 44 | ||
d | 5/8 | 15.9 | 5/8 | 15.9 | 5/8 | 15.9 | 5/8 | 15.9 | 7/8 | 22.2 | 7/8 | 22.2 | 7/8 | 22.2 | ||
3/4 | A | 3 7/8 | 98.4 | 4 5/8 | 117.5 | 4 5/8 | 117.5 | 4 5/8 | 117.5 | 5 1/8 | 130 | 5 1/8 | 130 | 5 1/2 | 139.7 | |
b | 1/2 | 12.7 | 5/8 | 15.9 | 5/8 | 15.9 | 5/8 | 15.9 | 1 | 25.4 | 1 | 25.4 | 1 1/4 | 31.8 | ||
D2 | 1 11/16 | 42.9 | 1 11/16 | 42.9 | 1 11/16 | 42.9 | 1 11/16 | 42.9 | 1 11/16 | 42.9 | 1 11/16 | 42.9 | 1 11/16 | 42.9 | ||
D1 | 2 3/4 | 69.8 | 3 1/4 | 82.5 | 3 1/4 | 82.5 | 3 1/4 | 82.5 | 3 1/2 | 88.9 | 3 1/2 | 88.9 | 3 3/4 | 95.2 | ||
n | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | – | 4 | 44 | ||
d | 5/8 | 15.9 | 3/4 | 19 | 3/4 | 19 | 3/4 | 19 | 7/8 | 22.2 | 7/8 | 22.2 | 7/8 | 22.2 | ||
1 | A | 4 1/4 | 108 | 4 7/8 | 123.8 | 4 7/8 | 123.8 | 4 7/8 | 123.8 | 5 7/8 | 149.2 | 5 7/8 | 149.2 | 6 1/4 | 159 | |
b | 9/16 | 14.3 | 11/16 | 17.5 | 11/16 | 17.5 | 11/16 | 17.5 | 1 1/8 | 28.6 | 1 1/8 | 28.6 | 1 3/8 | 34.9 | ||
D2 | 2 | 50.8 | 2 | 50.8 | 2 | 50.8 | 2 | 50.8 | 2 | 50.8 | 2 | 50.8 | 2 | 50.8 | ||
D1 | 3 1/8 | 79.4 | 3 1/2 | 88.9 | 3 1/2 | 88.9 | 3 1/2 | 88.9 | 4 | 102 | 4 | 102 | 4 1/4 | 108 | ||
n | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | ||
d | 5/8 | 15.9 | 3/4 | 19 | 3/4 | 19 | 3/4 | 19 | 1 | 25.4 | 1 | 25.4 | 1 | 25.4 | ||
1 1/4 | A | 4 5/8 | 117.5 | 5 1/4 | 133.4 | 5 1/4 | 133.4 | 5 1/4 | 133.4 | 6 1/4 | 159 | 6 1/4 | 159 | 7 1/4 | 184.2 | |
b | 5/8 | 15.9 | 3/4 | 19 | 13/16 | 20.6 | 13/16 | 20.6 | 1 1/8 | 28.6 | 1 1/8 | 28.6 | 1 1/2 | 38.1 | ||
D2 | 2 1/2 | 63.5 | 2 1/2 | 63.5 | 2 1/2 | 63.5 | 2 1/2 | 63.5 | 2 1/2 | 63.5 | 2 1/2 | 63.5 | 2 1/2 | 63.5 | ||
D1 | 3 1/2 | 88.9 | 3 7/8 | 98.4 | 3 7/8 | 98.4 | 3 7/8 | 98.4 | 4 3/8 | 111 | 4 3/8 | 111 | 5 1/8 | 130 | ||
n | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | ||
d | 5/8 | 15.9 | 3/4 | 19 | 3/4 | 19 | 3/4 | 19 | 1 | 25.4 | 1 | 25.4 | 1 1/8 | 28.6 | ||
1 1/2 | A | 5 | 127 | 6 1/8 | 155.6 | 6 1/8 | 155.6 | 6 1/8 | 155.6 | 7 | 177.8 | 7 | 177.8 | 8 | 203 | |
b | 11/16 | 17.5 | 13/16 | 20.6 | 7/8 | 22.2 | 7/8 | 22.2 | 1 1/4 | 31.8 | 1 1/4 | 31.8 | 1 3/4 | 44.5 | ||
D2 | 2 7/8 | 73 98 | 2 7/8 | 73 | 2 7/8 | 73 | 2 7/8 | 73 | 2 7/8 | 73 | 2 7/8 | 73 | 2 7/8 | 73 | ||
D1 | 3 7/8 | 4 | 4 1/2 | 114 | 4 1/2 | 114 | 4 1/2 | 114 | 4 7/8 | 124 | 4 7/8 | 124 | 5 3/4 | 146 | ||
n | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | ||
d | 5/8 | . 15.9 | 7/8 | 22.2 | 7/8 | 22.2 | 7/8 | 22.2 | 1 1/8 | 28.6 | 1 1/8 | 28.6 | 1 1/4 | 31.8 | ||
2 | A | 6 | 152.4 | 6 1/2 | 165.1 | 6 1/2 | 165.1 | 6 1/2 | 165.1 | 8 1/2 | 215.9 | 8 1/2 | 215.9 | 9 1/4 | 234.9 | |
b | 3/4 | 19 | 7/8 | 22.2 | 1 | 25.4 | 1 | 25.4 | 1 1/2 | 38.1 | 1 1/2 | 38.1 | 2 | 50.8 | ||
D2 | 3 5/8 | 92.1 | 3 5/8 | 92.1 | 3 5/8 | 92.1 | 3 5/8 | 92.1 | 3 5/8 | 92.1 | 3 5/8 | 92.1 | 3 5/8 | 92.1 | ||
D1 | 4 3/4 | 121 | 5 | 127 | 5 | 127 | 5 | 127 | 6 1/2 | 165.1 | 6 1/2 | 165.1 | 6 3/4 | 171 | ||
n | 4 | 4 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | ||
d | 3/4 | 19 | 3/4 | 19 | 3/4 | 19 | 3/4 | 19 | 1 | 25.4 | 1 | 25.4 | 1 1/8 | 28.6 | ||
2 1/2 | A | 7 | 177.8 | 7 1/2 | 190.5 | 7 1/2 | 190.5 | 7 1/2 | 190.5 | 9 5/8 | 244 | 9 5/8 | 244 | 10 1/2 | 266.7 | |
b | 7/8 | 22.2 | 1 | 25.4 | 1 1/8 | 28.6 | 1 1/8 | 28.6 | 1 5/8 | 41.3 | 1 5/8 | 41.3 | 2 1/4 | 57.2 | ||
D2 | 4 1/8 | 104.8 | 4 1/8 | 104.8 | 4 1/8 | 104.8 | 4 1/8 | 104.8 | 4 1/8 | 105 | 4 1/8 | 105 | 4 1/8 | 105 | ||
D1 | 5 1/2 | 139.7 | 5 7/8 | 149.2 | 5 7/8 | 149.2 | 5 7/8 | 149.2 | 7 1/2 | 190.5 | 7 1/2 | 190.5 | 7 3/4 | 197 | ||
n | 4 | 4 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | ||
d | 3/4 | 19 | 7/8 | 22.2 | 7/8 | 22.2 | 7/8 | 22.2 | 1 1/8 | 28.6 | 1 1/8 | 28.6 | 1 1/4 | 31.8 |
Super Duplex Steel Spacer Blind Flange Manufacturer
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