Spectacle Blind Flange

Stainless Steel Spectacle Blind Flange manufacturer In UAE, Check Characteristics Of ASME B16.48 Spade Blinds, Face Types


Spectacle Blind Flange

When To Use A ASME B16.48 Spectacle Blind Flange?

These devices are less expensive than isolation valves. A spectacle blind incorporates a flange spade or a ring spacer into a single item. Flange spades with ring spacers are used separately when rotating a spectacle blind will be problematic owing to space limits. The size and requirements of these isolation mechanisms are covered by ASME B16.48 Spectacle Blind Flange. Spectacle blinders (also known as "spectacle flanges") are made of steel plates and consist of two connected grooves. One is a circle and the other is a sturdy disc.

How To Install Stainless Steel Spectacle Blind Flange?

Normally, spectacle blinds are placed in the open configuration and do not obstruct the flow of fluid via the pipeline.
Simply loosen the flange bolts. Twist the Stainless Steel Spectacle Blind Flange to its locked state to blind the pipe and block the flow.
Because one disc will always be outside the pipe, it is simple to determine if a spectacle blind is open. Gaps on the hangers alert the workers to spades or ring spacers.

Contact directly an Carbon Steel Spectacle Blind Flange and SS 304 Figure 8 Spectacle Blind manufacturer in UAE for lowest price and fast delivery

Advantages Of Carbon Steel Spectacle Blind Flange

Carbon Steel Spectacle Blind Flange does not require welding to be installed.Flange's spectacle flanges provide a broad range of pressure limitations.
Magnetic levitation reinforces with greater technological accuracy can also be employed to address this issue.
It is better suited to temperature variations, preserving pipeline valves and preventing structural harm inflicted by pipeline tension.

What Is Difference Between Spectacle Blind And Spacer?

Spades are similar to Spectacle Flange in that they are not joined to each other. Spades and spacers are used in networks where maintenance is rarely required, such as in situations with large pipe sizes.
As with the previously described Spectacle Blind, repair on a pipe can be an excuse to temporarily swap a Ring Spacer. The Spade and Spacer can be installed by loosening all screws and temporarily removing half of them.

Refer Common installation locations Of ASME B16.48 Spectacle Blind Flange, Limitations Of SA 516 Gr 70 Spectacle Blind Flanges




Specialized in manufacturing

Spectacle Blind Flanges

Spectacle Blind Flange is a pressure-retaining plate with one solid end and one open end connected with a web.

Size

1/2 Inches To 60 Inches

Class

150 To 2500

ASTM

A105, A182, A694

ASME

B16.48
SS Spectacle Blind Flange


Characteristics Of ASME B16.48 Spectacle Blind Flange



Line Blanks are available in multiple face types
Line Blanks are available in multiple face types
  • Female ring-joint blanks
  • Male ring-joint blanks
  • Raised face blanks.
  • Flat face blanks
  • Their characteristics are widely recognized and predictable.
Common spectacle blind installation locations
Common spectacle blind installation locations
  • In bypass lines
  • At inlets and outlets of rotary or static equipment
  • At inlets and outlets of storage and processing vessels
Figure-8 Blind Flanges Limitations
Figure-8 Blind Flanges Limitations
  • One Major Drawback - Weight
  • This is more evident in large or complicated piping systems where the weight of multiple blinds could fast add unacceptable stresses to the general design.
  • In these cases, the standalone options are generally recommended to help avoid excess load.

ASME B16.48 Specification


Specifications Spectacle Blind Flange
Size 1/2” to 60”, DN 12mm to DN 1500mm
Class Class 150 to Class 2,500, PN 2.5 to PN 250
Brand Name Schulzmann
Equipment Pushing Machine
Press machine
electric bevelling machine
Payment Type L/C,T/T,D/P,Paypal
Supporting Material For Flanges Gasket/ Ring Joint/ Flanges Bolts
Certificate ISO
Methods Of Forging Casting
Forging
Rolling
Cutting
Use In Marine & dredging
Sanitation
Process Instrumentation
Oil and Gas
Petrochemical/ Refinery/Chemical
Power etc.
Transportation In Air & Ocean and Land
Spectacle Blind Flange Manufacturer In UAE 800 ton per month (Manufacturing Productivity)
Available Packing Packing In Plywood Box And Plywood Pallet
Testing Hydrostatic testing machine
Magnetic particle detector
Direct-reading Spectrograph
UI trasonic flaw detector
Supply Ability 600 Ton Per Month


Spectacle Blind Flange Cost


Description Price In US ($)
A182 GR.F316L, FLANGE-SPECTACLE BLIND, ASME CLASS 1500 RTJ US $51.03 Per KG
A182 GR.F51/F60, FLANGE-SPECTACLE BLIND, ASME CLASS 900 RTJ US $657.33 Per KG
SIZE: 323.90MM,150 FF ASME B16.48, CUNI 90/10, SOLID SPECTACLE BLIND FLANGE, ASTM C70600 US $1164.43 Per KG
SIZE: 267.00MM,150 FF ASME B16.48, CUNI 90/10, SOLID SPECTACLE BLIND FLANGE, ASTM C70600 US $1552.57 Per KG
ASTM C70600, SIZE: 108.00MM,150 FF ASME B16.48, CUNI 90/10, SOLID SPECTACLE BLIND FLANGE US $174.94 Per KG
ASTM C70600, SIZE: 108.00MM, 150, FF CUNI 90/10, SOLID SPECTACLE BLIND FLANGE, ASME B16.48 US $349.87 Per KG
SA182F316/316L, 25NB, SPECTACLE BLIND, SERRATED FLAT FACE, #300 US $3669.42 Per KG
40NB, SPECTACLE BLIND, FLANGES, SA182F316/316L, SERRATED FLAT FACE, #300, ASME B16.48 US $5889.65 Per KG
20NB, SPECTACLE BLIND, /316L, SERRATED FLAT FACE, #300, ASME B16.48 US $1691.72 Per KG
ASTM B124 C11000 ,RF, ASME B16.48, COPPER, SOLID SPECTACLE BLIND FLANGE, SIZE:60.32MM OD US $44.41 Per KG
A182 GR.F51/F60, FLANGE-SPECTACLE BLIND, ASME CLASS 1500 RTJ US $127.15 Per KG
SIZE: 267.00MM,150 FF ASME B16.48, CUNI 90/10, SOLID SPECTACLE BLIND FLANGE, ASTM C70600 US $1552.67 Per KG
CARBON STEEL : DN 650, SPECTACLE BLIND FLANGE #150 US $683.01 Per KG
SPECTACLE-BLIND, 2 Inch, 600LB, RF, A515 GR 70 B16.48 US $151.48 Per KG
SPECTACLE-BLIND, 2 Inch, 150LB, RF, B462 UNS N08020 B16.48 US $405.33 Per KG


Types Of ASME B16.48 Spectacle Flange


Spectacle Blind

Spectacle Blind

Carbon Steel Spectacle Blind Flanges

Carbon Steel Spectacle Blind Flanges

Stainless Steel Spectacle Blind Flanges

Stainless Steel Spectacle Blind Flanges

Spectacle Flanges

Spectacle Flanges

SA 516 Gr 70 Spectacle Blind Flange

SA 516 Gr 70 Spectacle Blind Flange

Stainless Steel Spade Blinds

Stainless Steel Spade Blinds

Paddle Blind Flanges

Paddle Blind Flanges

Line Blanks Flanges

Line Blanks Flanges

Figure-8 Blind Flanges

Figure-8 Blind Flanges

Paddle Blind Flanges

Paddle Blind Flanges

ASME B16.48 Spectacle Blind Flanges

ASME B16.48 Spectacle Blind Flanges

Spade Blind Flanges

Spade Blind Flanges

Spectacle Blind Open

Spectacle Blind Open

Paddle Blind And Spacer

Paddle Blind And Spacer

Piping Spectacle Blind

Piping Spectacle Blind

ASTM A105 Spectacle Blind Flanges

ASTM A105 Spectacle Blind Flanges

SS 316 Spectacle Blind Flanges

SS 316 Spectacle Blind Flanges

A105 Carbon Steel Figure 8 Spectacle Blind

A105 Carbon Steel Figure 8 Spectacle Blind


ASME B16.48 Spectacle Blind Flange Dimensions


Class 150 Spectacle Blind Flange Dimensions

ASME B16.48 Spectacle Blind Flange Dimensions

NPSClass 150
(A)(B)(C)(D)(E)(F)
1/2"5/81-3/42-3/85/81-1/21/4
3/4"13/162-1/82-3/45/81-1/21/4
1"1-1/82-1/23-1/89/161-1/21/4
1-1/4"1-5/82-7/83-1/29/161-1/21/4
1-1/2"1-7/83-1/43-7/89/161-1/21/4
2"2-3/844-3/411/1621/4
2-1/2"2-7/84-3/45-1/211/1621/4
3"3-1/25-1/4611/162-1/21/4
3-1/2"46-1/473/42-1/23/8
4"4-1/26-3/47-1/23/42-1/23/8
5"5-9/167-5/88-1/27/833/8
6"6-5/88-5/89-1/27/831/2
8"8-5/810-7/811-3/47/831/2
10"10-3/413-1/414-1/4145/8
12"12-3/41617143/4
14"1417-5/818-3/41-1/84-1/43/4
16"1620-1/821-1/41-1/84-1/47/8
18"1821-1/222-3/41-1/44-1/21
20"2023-3/4251-1/44-3/41-1/8
24"2428-1/829-1/21-3/85-1/21-1/4


Class 300 Spectacle Blind Flanges Dimensions


NPSClass 300
(A)(B)(C)(D)(E)(F)
1/2"5/822-5/85/81-1/21/4
3/4"13/162-1/23-1/43/41-1/21/4
1"1-1/82-3/43-1/211/161-1/21/4
1-1/4"1-5/83-1/83-7/811/161-1/21/4
1-1/2"1-7/83-5/84-1/27/821/4
2"2-3/84-1/453/423/8
2-1/2"2-7/855-7/87/82-1/23/8
3"3-1/25-3/46-5/87/82-1/23/8
3-1/2"46-3/87-1/47/82-1/21/2
4"4-1/277-7/87/82-1/21/2
5"5-5/88-3/89-1/47/835/8
6"6-5/89-3/410-5/87/835/8
8"8-5/8121313-1/27/8
10"10-3/414-1/815-1/41-1/841
12"12-3/416-1/217-3/41-1/441-1/8
14"141920-1/41-1/44-3/41-1/4
16"1621-1/822-1/21-3/84-7/81-1/2
18"1823-3/824-3/41-3/84-1/21-5/8
20"2025-5/8271-3/84-3/41-3/4
24"2430-3/8321-5/85-1/22


Grade Of SS Spectacle Blind Flange




Class 600 Spectacle Blind Flanges Dimensions


NPSClass 600
(A)(B)(C)(D)(E)(F)
1/2"5/822-5/85/81-1/21/4
3/4"13/162-1/23-1/43/41-1/21/4
1"1-1/82-3/43-1/23/42-1/41/4
1-1/4"1-7/163-1/83-7/83/42-1/43/8
1-1/2"1-11/163-5/84-1/27/82-5/83/8
2"2-1/84-1/453/42-1/43/8
2-1/2"2-5/855-7/87/82-5/81/2
3"3-1/45-3/46-5/87/82-5/81/2
3-1/2"3-3/46-1/47-1/4135/8
4"4-1/47-1/28-1/2135/8
5"5-1/49-3/810-1/21-1/83-3/83/4
6"6-3/810-3/811-1/21-1/83-3/87/8
8"8-3/812-1/213-3/41-1/43-3/41-1/8
10"10-7/1615-5/8171-3/84-1/81-3/8
12"12-3/817-7/819-1/41-3/84-1/81-5/8
14"13-5/819-1/420-3/41-1/24-1/21-3/4
16"15-5/822-1/823-3/41-5/84-7/82
18"17-5/82425-3/41-3/45-1/42-1/8
20"19-5/1626-3/428-1/21-3/45-1/42-1/2
24"23-1/23133262-7/8


Class 900 Spectacle Blind Flanges Dimensions


NPSClass 900
(A)(B)(C)(D)(E)(F)
1/2"0.6252.3753.25-1.501/4
3/4"0.08252.6253.500.8751.6251/4
1"1.053.04.01.02.251/4
1-1/4"1.443.3754.3751.02.253/8
1-1/2"1.683.54.8751.1252.6253/8
2"2.165.56.51.02.251/2
2-1/2"2.646.3757.51.1252.6251/2
3"3.256.57.51.02.6255/8
4"4.258.09.251.253.03/4
5"5.39.62511.01.3753.3757/8
6"6.3611.2512.51.253.3751
8"8.3314.015.51.53.751-3/8
10"10.4217.018.51.54.1251-5/8
12"12.3919.521.01.54.1251-7/8
14"13.6220.37522.01.6254.52-1/8
16"15.6222.524.251.754.8752-3/8
18"17.6225.027.02.05.252-5/8
20"19.5627.37529.52.1255.252-7/8
24"23.532.87535.52.6256.03-1/2


Class 1500 Spectacle Blind Flanges Dimensions


NPSClass 1500
(A)(B)(C)(D)(E)(F)
1/2"0.6252.3753.25-1.501/4
3/4"0.822.6253.500.8751.6253/8
1"1.053.04.01.02.53/8
1-1/4"1.3753.3754.3751.02.53/8
1-1/2"1.613.754.8751.1252.751/2
2"2.075.56.51.02.751/2
2-1/2"2.476.3757.51.1253.05/8
3"3.076.758.01.253.03/4
4"4.038.1259.51.3753.57/8
5"5.059.87511.51.6253.51-1/8
6"6.0611.012.51.53.51-3/8
8"7.9813.7515.51.754.01-5/8
10"10.0217.019.02.04.52
12"11.9420.37522.52.1254.52-3/8
14"13.1222.62525.02.3755.02-5/8
16"15.025.12527.752.6255.253
18"16.8827.62530.52.8755.753-3/8
20"18.8129.62532.753.1256.03-3/4
24"22.6235.37539.03.6257.04-3/8


Class 2500 Spectacle Blind Flanges Dimensions


NPSClass 2500
(A)(B)(C)(D)(E)(F)
1/2"0.6252.6253.5-1.503/8
3/4"0.822.8753.750.8751.6253/8
1"1.053.254.251.02.53/8
1-1/4"1.384.05.1251.1252.51/2
1-1/2"1.614.55.751.252.755/8
2"2.075.6256.751.1252.755/8
2-1/2"2.476.57.751.253.03/4
3"3.077.6259.01.3753.07/8
4"4.039.12510.751.6253.51-1/8
5"5.0510.87512.751.8753.51-3/8
6"6.0612.37514.52.1253.52
8"7.8115.12517.252.1254.02-1/8
10"9.7518.62521.252.6254.52-5/8
12"11.3721.524.3752.8754.53-1/8


Spectacle Blind Flange Weight


DN Normal Pipe Size Weight As Per Kilogram
151/2
203/40.4
2510.6
401 1/20.8
5021.7
8034.6
10046.5
150611.9
200830
2501058
30012101


Spectacle Blind Thickness Calculation


NPS OD ID Center Line Thickness Width Of Web
inchABCtW
1/2″451660338
3/4″542170338
1″642780338
1-1/4″7342906.438
1-1/2″83481006.438
2″102611206.451
2-1/2″107731406.451
3″133891506.464
3-1/2″1591021759.764
4″1721141909.764
5″1941412159.776
6″21916824012.776
8″27621930012.776
10″33727336015.7102
12″40632443019.1102
14″44835647519.1108
16″51140646022.4108
18″54645758025.4114
20″60350863528.4121
24″71461075031.8140


Grades Of Carbon Steel Spectacle Flanges




API 590 Spectacle Blind Dimensions


API 590 Spectacle Blind Dimensions

DNDBQLT1GTKG
153817106041280.24
204823156041280.31
255829156041280.4
407843156041480.62
508855156061480.78
8012483306061881.35
100144108307061881.67
2002542104070818126.64
30036331240808221515.77
400463393508010221831.07
500568495508010222254.91
600667597508010272582.84
  • Face: FF
  • Size: 10 Inch (DN250)
  • Standards: API 590
  • Pressure: 600LB (PN100)
  • Materials: ASTM A105


36 Inch Spectacle Blind Dimensions


36 Inch Spectacle Blind Dimensions

NPS Weights
A B C D E F G 2 3,4
12 1/21.053 1/81/441 1/2…….111
1 1/23 1/41.93 7/81/441 1/2……..111
242.384 3/41/442……..212
2 1/24 3/42.885 1/21/442……..223
35 1/43.561/442 1/2……..223
46 3/44.57 1/23/842 1/2……..325
68 5/86.629 1/21/243……..7410
810 7/88.6211 3/41/243…….14720
1013 1/410.7514 1/45/854………261235
121612.75173/454……..452162
1417 1/21418 3/43/454 1/4……..532474
16201621 1/47/854 1/41 1/29240127
1821 3/81822 3/4154 1/21 1/210539139
2023 5/820251 1/854 3/41 1/214550188
24282429 1/21 1/455 1/21 1/224580315
3034 1/230361 5/855 1/21 1/2437128555
36413642 3/4265 1/21 3/4757203945


Stainless Steel Spectacle Blind Flanges Gasket


Stainless Steel Spectacle Blind Flanges Gasket<

View Alloy Steel Spectacle Flange Gasket and dimensions of A105 Carbon Steel Figure 8 Spectacle Blind and ASTM A182 F304 Figure-8 Blind Flanges with sealing face


Class 150 Blanks Flange For Use With RF Flanges Dimensions


Class 150 Blanks Flange For Use With RF Flanges Dimensions

ID B,
Normal Pipe Size millimeter
OD, O, millimeterCenterline Dimension, A, millimeter  Thickness, t, millimeter  Web Width, W, millimeter
1⁄245 60 3.038
3⁄454 70 3.038
164 80 3.038
11⁄473 90 6.438
11⁄283 100 6.438
2 102 120 6.451
21⁄2107 140 6.451
3 89 133 150 6.464
31⁄2159 175 9.764
4 172 190 9.764
5 194 215 9.776
6 219 240 12.776
8 276 300 12.776
10 337 360 15.7102
12 406 430 19.1102
14 448 475 19.1108
16 511 460 22.4108
18 546 580 25.4114
20 603 635 28.4121
24 714 750 31.8140


Grades Of Alloy Steel Figure-8 Blind Flanges




Class 150 Female Ring-Joint Facing Figure-8 Blanks Dimensions


Class 150 Female Ring-Joint Facing Figure-8 Blanks Dimensions

  Normal Pipe Size ID, B, millimeterOD, O, millimeterCenterline Dimension, A, millimeter  Thickness, t, millimeter  Width Of Web, W, millimeter
1 34 64 80 19.151
11⁄4 42 73 90 19.151
11⁄2 48 83 100 19.157
2 61 102 120 19.157
21⁄2 73 121 140 22.457
3 89 133 150 22.457
31⁄2 102 154 175 22.464
4 114 172 190 22.464
5 141 194 215 25.470
6 168 219 240 25.483
8 219 273 300 28.495
10 273 330 360 31.8102
12 324 406 430 35.1121
14 356 426 475 35.1127
16 406 483 540 38.1127
18 457 546 580 41.1127
20 508 597 635 41.1127
24 610 711 750 47.8152


Don't Forget To Check Our Duplex Paddle Blind Flanges Application And Line Blanks Dimensional Standards, manufacturer & supplier Of Stainless Steel Spade Blinds In Middle East


Sealing Face Of Carbon Steel Spectacle Blind Flanges


ASME B16.48 spectacle blind flanges is used between 2 flanges, the 2 sides of the spectacle need to be touched with the sealing face of 2 flanges,so the flanges should have sealing face to match with the flanges face.


Figure-8 Blind Flanges Application


applied to permanently separating pipesystems

  • Spectacle Blind In Open Position
  • Spectacle Blind In Closed Position


Applicable Line Blanks Dimensional Standards


Dimensional Standards

  • In this standard Spectacle blinds are available only up to 24 Inches.
  • For Class 2500 spectacle blinds are upto 12 Inches.
  • No Class 400 spectacle blinds in this standard.
  • Facings available are Raised Face, Female Ring Joint and Male ring joint.