Spectacle Flanges

OVERVIEW

Spectacle Flanges

TUBA Manufacturers, Supplier and Exporters of high quality Spectacle Blind Flanges in mumbai, india. These Flanges are similar to a blind flange but different because they fit between two flanges. Spectacle blind gets their name from similarity to pair or eye glasses. Once side of

is fully closed for complete flow shuts off, whereas the other end is open for full flow. In this setup the blinds can be rotated without having to take the system apart. It also gives visual confirmation if the line is open or close. One of the discs is a solid plate, and the other is a ring, and its inside diameter is equal to that of a flange. These Blinds are applied in systems that regularly need to be separated from other installations.

A182 Gr F347H Spectacle Blinds Flange can be forged or plate. Steel Spectacle Blinds are mostly applied to separating pipe systems, or just to connect with each other. These Spectacle Blinds is mounted in the position, which is in an open state, so that flow through the pipe is possible. If the Spectacle Blinds in close position is rotated, the pipe is blanked off, and no current is possible.

Spectacle Flange Specification

Size Chart 1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Spectacle Blind Flange Standards ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS SP44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
Spectacle Blind Flange Pressure Rating ANSI Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Spectacle Blind Flanges Pressure Calculation in DIN 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
Spectacle Blind Flange 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
Spectacle Blind Flange UNI 6Bar 10Bar 16Bar 25Bar 40Bar
Spectacle Blind Flange EN 6Bar 10Bar 16Bar 25Bar 40Bar
Coating Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized
Test Certificates EN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
Spectacle Blind Flanges Production technique Forged, Heat treated and machined
Spectacle Blind Flange Connect Type/ Flange Face Type Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove
Special design

As per your drawing

AS, ANSI, BS, DIN and JIS
15 NB (1/2") to 200 NB (8")
Equal and Reducing Configurations
Spectacle Blind Flange Test Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector
Spectacle Blind Flanges Equipment Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc
Spectacle Blind Flange Origin Indian / West Europe / Japan / USA / Korean
Manufacturer of Spectacle Blind Flange

ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.
ASTM A182 Spectacle Blind Flange: -BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange

B.S: BS4504 , BS3293, BS1560, BS10
AS 2129: Table D; Table E; Table H
ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
ANSI : ANSI B16.5, ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48
ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
American standard (ANSI)
German (DIN)
British standard (BS)

DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 ASTM A182 F316 Stainless Steel Flanges
The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276
Spectacle Blind Flange Uses & application Bitumen upgraders.
Heavy oil refineries.
Nuclear power (mostly seamless).
Petrochemicals and acids.
Spectacle Blind Plate Flanges Export to Ireland, Singapore, Indonesia, Ukraine, Saudi & Arabia, Spain, Canada, USA, Brazil, Thailand, Korea, Iran, India, Egypt, Oman, Dubai, Peru, etc
Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175

Spectacle Flanges Materials & Grades

Materials : Standard, Grades
Stainless Steel Spectacle Flanges : ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L
Carbon Steel Spectacle Flanges : ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52,
F60, F65, F70
Alloy Steel Spectacle Flanges : ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Duplex Steel Spectacle Flanges : ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
6% Moly / Super Duplex Spectacle Flanges : ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
Low Temperature Steel Spectacle Flanges : ASTM A350 LF2, LF3, LF6
High Yield Spectacle Flanges : ASTM A694 F42, F52, F60, F65, F70
Nickel Alloys Spectacle 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)
Copper Alloys Spectacle 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
Alloys Spectacle Flanges : ALLOY 20, ALLOY C, ALLOY C276, ALLOY B2
Other Grade of Spectacle Flanges : Bronze, Brass, Cupro Nickel, Titanium, Inconel, Monel, Hastelloy

ANSI, ASME, ASA B16.5/B16.48 Spectacle Blind Flange 2500 Lbs Dimension

PIPE
SIZE		 Spectacle Blinds 2500# Flange
A B C D E F
1/2″ 0.625 2.625 3.5 – 1.50 3/8
3/4″ 0.82 2.875 3.75 0.875 1.625 3/8
1″ 1.05 3.25 4.25 1.0 2.5 3/8
1-1/4″ 1.38 4.0 5.125 1.125 2.5 1/2
1-1/2″ 1.61 4.5 5.75 1.25 2.75 5/8
2″ 2.07 5.625 6.75 1.125 2.75 5/8
2-1/2″ 2.47 6.5 7.75 1.25 3.0 3/4
3″ 3.07 7.625 9.0 1.375 3.0 7/8
4″ 4.03 9.125 10.75 1.625 3.5 1-1/8
5″ 5.05 10.875 12.75 1.875 3.5 1-3/8
6″ 6.06 12.375 14.5 2.125 3.5 2
8″ 7.81 15.125 17.25 2.125 4.0 2-1/8
10″ 9.75 18.625 21.25 2.625 4.5 2-5/8
12″ 11.37 21.5 24.375 2.875 4.5 3-1/8

ANSI, ASME, ASA B16.5/B16.48 Spectacle Blind Flange 1500 Lbs Dimension

PIPE
SIZE		 Spectacle Blind 1500# Flanges
A B C D E F
1/2″ 0.625 2.375 3.25 – 1.50 1/4
3/4″ 0.82 2.625 3.50 0.875 1.625 3/8
1″ 1.05 3.0 4.0 1.0 2.5 3/8
1-1/4″ 1.375 3.375 4.375 1.0 2.5 3/8
1-1/2″ 1.61 3.75 4.875 1.125 2.75 1/2
2″ 2.07 5.5 6.5 1.0 2.75 1/2
2-1/2″ 2.47 6.375 7.5 1.125 3.0 5/8
3″ 3.07 6.75 8.0 1.25 3.0 3/4
4″ 4.03 8.125 9.5 1.375 3.5 7/8
5″ 5.05 9.875 11.5 1.625 3.5 1-1/8
6″ 6.06 11.0 12.5 1.5 3.5 1-3/8
8″ 7.98 13.75 15.5 1.75 4.0 1-5/8
10″ 10.02 17.0 19.0 2.0 4.5 2
12″ 11.94 20.375 22.5 2.125 4.5 2-3/8
14″ 13.12 22.625 25.0 2.375 5.0 2-5/8
16″ 15.0 25.125 27.75 2.625 5.25 3
18″ 16.88 27.625 30.5 2.875 5.75 3-3/8
20″ 18.81 29.625 32.75 3.125 6.0 3-3/4
24″ 22.62 35.375 39.0 3.625 7.0 4-3/8

ANSI, ASME, ASA B16.5/B16.48 Spectacle Blind Flange 900 Lbs Dimension

PIPE
SIZE		 Spectacle Blind 900# Flange
A B C D E F
1/2″ 0.625 2.375 3.25 – 1.50 1/4
3/4″ 0.0825 2.625 3.50 0.875 1.625 1/4
1″ 1.05 3.0 4.0 1.0 2.25 1/4
1-1/4″ 1.44 3.375 4.375 1.0 2.25 3/8
1-1/2″ 1.68 3.5 4.875 1.125 2.625 3/8
2″ 2.16 5.5 6.5 1.0 2.25 1/2
2-1/2″ 2.64 6.375 7.5 1.125 2.625 1/2
3″ 3.25 6.5 7.5 1.0 2.625 5/8
4″ 4.25 8.0 9.25 1.25 3.0 3/4
5″ 5.3 9.625 11.0 1.375 3.375 7/8
6″ 6.36 11.25 12.5 1.25 3.375 1
8″ 8.33 14.0 15.5 1.5 3.75 1-3/8
10″ 10.42 17.0 18.5 1.5 4.125 1-5/8
12″ 12.39 19.5 21.0 1.5 4.125 1-7/8
14″ 13.62 20.375 22.0 1.625 4.5 2-1/8
16″ 15.62 22.5 24.25 1.75 4.875 2-3/8
18″ 17.62 25.0 27.0 2.0 5.25 2-5/8
20″ 19.56 27.375 29.5 2.125 5.25 2-7/8
24″ 23.5 32.875 35.5 2.625 6.0 3-1/2

ANSI, ASME, ASA B16.5/B16.48 Spectacle Blind Flange 600 Lbs Dimension

PIPE
SIZE		 Spectacle Blind 600# Flange
A B C D E F
1/2″ 5/8 2 2-5/8 5/8 1-1/2 1/4
3/4″ 13/16 2-1/2 3-1/4 3/4 1-1/2 1/4
1″ 1-1/8 2-3/4 3-1/2 3/4 2-1/4 1/4
1-1/4″ 1-7/16 3-1/8 3-7/8 3/4 2-1/4 3/8
1-1/2″ 1-11/16 3-5/8 4-1/2 7/8 2-5/8 3/8
2″ 2-1/8 4-1/4 5 3/4 2-1/4 3/8
2-1/2″ 2-5/8 5 5-7/8 7/8 2-5/8 1/2
3″ 3-1/4 5-3/4 6-5/8 7/8 2-5/8 1/2
3-1/2″ 3-3/4 6-1/4 7-1/4 1 3 5/8
4″ 4-1/4 7-1/2 8-1/2 1 3 5/8
5″ 5-1/4 9-3/8 10-1/2 1-1/8 3-3/8 3/4
6″ 6-3/8 10-3/8 11-1/2 1-1/8 3-3/8 7/8
8″ 8-3/8 12-1/2 13-3/4 1-1/4 3-3/4 1-1/8
10″ 10-7/16 15-5/8 17 1-3/8 4-1/8 1-3/8
12″ 12-3/8 17-7/8 19-1/4 1-3/8 4-1/8 1-5/8
14″ 13-5/8 19-1/4 20-3/4 1-1/2 4-1/2 1-3/4
16″ 15-5/8 22-1/8 23-3/4 1-5/8 4-7/8 2
18″ 17-5/8 24 25-3/4 1-3/4 5-1/4 2-1/8
20″ 19-5/16 26-3/4 28-1/2 1-3/4 5-1/4 2-1/2
24″ 23-1/2 31 33 2 6 2-7/8

ANSI, ASME, ASA B16.5/B16.48 Spectacle Blind Flange 300 Lbs Dimension

PIPE
SIZE		 Spectacle Blind 300# Flange
A B C D E F
1/2″ 5/8 2 2-5/8 5/8 1-1/2 1/4
3/4″ 13/16 2-1/2 3-1/4 3/4 1-1/2 1/4
1″ 1-1/8 2-3/4 3-1/2 11/16 1-1/2 1/4
1-1/4″ 1-5/8 3-1/8 3-7/8 11/16 1-1/2 1/4
1-1/2″ 1-7/8 3-5/8 4-1/2 7/8 2 1/4
2″ 2-3/8 4-1/4 5 3/4 2 3/8
2-1/2″ 2-7/8 5 5-7/8 7/8 2-1/2 3/8
3″ 3-1/2 5-3/4 6-5/8 7/8 2-1/2 3/8
3-1/2″ 4 6-3/8 7-1/4 7/8 2-1/2 1/2
4″ 4-1/2 7 7-7/8 7/8 2-1/2 1/2
5″ 5-5/8 8-3/8 9-1/4 7/8 3 5/8
6″ 6-5/8 9-3/4 10-5/8 7/8 3 5/8
8″ 8-5/8 12 13 1 3-1/2 7/8
10″ 10-3/4 14-1/8 15-1/4 1-1/8 4 1
12″ 12-3/4 16-1/2 17-3/4 1-1/4 4 1-1/8
14″ 14 19 20-1/4 1-1/4 4-3/4 1-1/4
16″ 16 21-1/8 22-1/2 1-3/8 4-7/8 1-1/2
18″ 18 23-3/8 24-3/4 1-3/8 4-1/2 1-5/8
20″ 20 25-5/8 27 1-3/8 4-3/4 1-3/4
24″ 24 30-3/8 32 1-5/8 5-1/2 2

ANSI, ASME, ASA B16.5/B16.48 Spectacle Blind Flange 150 Lbs Dimension

PIPE
SIZE		 Spectacle Blind 150# Flange
A B C D E F
1/2″ 5/8 1-3/4 2-3/8 5/8 1-1/2 1/4
3/4″ 13/16 2-1/8 2-3/4 5/8 1-1/2 1/4
1″ 1-1/8 2-1/2 3-1/8 9/16 1-1/2 1/4
1-1/4″ 1-5/8 2-7/8 3-1/2 9/16 1-1/2 1/4
1-1/2″ 1-7/8 3-1/4 3-7/8 9/16 1-1/2 1/4
2″ 2-3/8 4 4-3/4 11/16 2 1/4
2-1/2″ 2-7/8 4-3/4 5-1/2 11/16 2 1/4
3″ 3-1/2 5-1/4 6 11/16 2-1/2 1/4
3-1/2″ 4 6-1/4 7 3/4 2-1/2 3/8
4″ 4-1/2 6-3/4 7-1/2 3/4 2-1/2 3/8
5″ 5-9/16 7-5/8 8-1/2 7/8 3 3/8
6″ 6-5/8 8-5/8 9-1/2 7/8 3 1/2
8″ 8-5/8 10-7/8 11-3/4 7/8 3 1/2
10″ 10-3/4 13-1/4 14-1/4 1 4 5/8
12″ 12-3/4 16 17 1 4 3/4
14″ 14 17-5/8 18-3/4 1-1/8 4-1/4 3/4
16″ 16 20-1/8 21-1/4 1-1/8 4-1/4 7/8
18″ 18 21-1/2 22-3/4 1-1/4 4-1/2 1
20″ 20 23-3/4 25 1-1/4 4-3/4 1-1/8
24″ 24 28-1/8 29-1/2 1-3/8 5-1/2 1-1/4

ASME B16.5 Spectacle Flanges Dimensional Tolerances

Outside Diameter
≤ 24 = 1.6 mm | > 24 = ± 3.2 mm		 Inside Diameter
Within Limits on Boring Gauge
Diameter of Contact Face
1.6 mm Raised Face = ± 0.8 mm
6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm		 Drilling
Bolt Circle = 1.6 mm | Bolt Hole Spacing = ± 0.8 mm
Eccentricity of Bolt Circle with Respect to Facing
≤ 2½ = 0.8 mm max. | ≥ 3 = 1.6 mm max.
Outside Diameter of Hub
≤ 12 = + 2.4 mm / – 1.6 mm | ≥ 14 = ± 3.2 mm		 Diameter of Counterbore
Same as forInside Diameter
Thickness
≤ 18 = + 3.2 mm / – 0 | ≥ 20 = + 4.8 mm / – 0		 Length thru Hub
≤ 18 = + 3.2 mm / – 0.8 mm | ≥ 20 = + 4.8 mm / – 1.6 mm

Manufacturing Standards of Spectacle Flanges

ASME/ANSI B16.5 Spectacle Blind Flange
PRESSURE CLASS 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
DIN EN 1092-1 Face Dimensions PN 2.5, PN 6, PN 10, PN 16, PN 25, PN 40, PN 63, PN 100, PN 160, PN 250, PN 320, PN 400
BS 4504 SEC 3.1, BS 4504[PART 1], BS 1560 BOSS Spectacle Blind Hubbed Flange
TABLE D, E, F, H
DIN FLANGES DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673
PRESSURE CLASS PN 6 TO PN 100

ANSI B16.5 Spectacle Flange Forms & Availability

Products Size
ANSI B16.5 Raised Face Spectacle Blind Flange ANSI B16.5 Stainless Steel Spectacle Blind Flanges Sizes 1/8″ – 36″
Raised Face or Flat Face
ANSI B16.5 Carbon Steel Spectacle Blind Plate Flange ANSI B16.5 Alloy Steel Spectacle Blind Pipe Flange
ANSI B16.5 Spectacle Blind Raised Face Flange ANSI B16.5 High Nickel Alloy Spectacle Blind Flanges
ANSI B16.5 Nickel Class 150 Spectacle Blind Flanges ANSI B16.5 Monel Class 300 Spectacle Blind Flanges
ANSI B16.5 Hastelloy Class 600 Spectacle Blind Flanges ANSI B16.5 Titanium Class 900 Spectacle Blind Flanges
ANSI B16.5 Cu-Ni Class 1500 Spectacle Blind Flanges ANSI B16.5 Alloy 20 Class 2500 Spectacle Blind Flanges
ASME B16.47 SMO 254 Series A Spectacle Blind Flanges ASME B16.47 Inconel Series B Spectacle Blind Flanges

Spectacle Flange Standard

American Steel Spectacle Blind Flanges Standard
Standard Code Standard Name
ANSI ASME SA-182 Spectacle Blind Flanges
ANSI ASME B16.5 Spectacle Blind Flange
ASME – B 16.36 Spectacle Blind flange
German Steel Spectacle Blind Flanges Standard
DIN 2573 / 2576 Flat Flange for Welding (Spectacle Blind)
DIN 2673 Loose Flanges and Rings for Welding (Spectacle Blind Flanges and Plain Collars)
DIN PN10, PN16 PN10 Spectacle Blind Flanges, DIN PN 10 Spectacle Blind Flanges, PN16 Spectacle Blind Flange
DIN PN20, PN25 PN20 Spectacle Blind Flanges, DIN PN 25 Spectacle Blind Flanges
DIN PN40, PN50 PN40 Spectacle Blind Flanges, DIN PN 50 Spectacle Blind Flanges
Japanese Steel Spectacle Blind Flanges Standard
JIS B2220, B2291 Spectacle Blind flange
JIS 5K, 10K, 30K, 40K, 5K Raised Face Spectacle Blind Flange, 10K RTJ, 30K Spectacle Blind Flanges, 40K Spectacle Blind Raised Face Flanges
British Standard Spectacle Blind Flanges Standard
BS 10 Table D BS 10 Table D Spectacle Blind Flange
BS 10 Table E BS 10 Table E Spectacle Blind Flange
BS 10 Table F BS 10 Table F Spectacle Blind Flange
BS 10 Table H BS 10 Table H Spectacle Blind Flange

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