Manufacturers & Suppliers of Flanges, Pipe Fittings & Tube Fittings

Call Anytime +91 9833885906
Send Email sales@unifitmetalloys.com

Spectacle Flanges

Manufacturer of Flat Faced Spectacle Blind Flanges, Ready Stock Of Raised Faced Spectacle Flanges, EN1092-1 Spectacle Flanges, ANSI B16.5 Class 150 Spectacle Flanges, Inconel Spectacle Blind Flange, Stainless Steel Spectacle Blind Flanges Supplier in Mumbai.

Unifit Metal Alloys is a supplier of Spectacle Pipe Flanges, which has great strength and hardness, as well as excellent corrosion protection. However, the nit riding procedure of this Alloy 20 Spectacle Flanges lowers corrosion resistance and is thus not usually suggested except in critical situations where the advantage outweighs all other factors. It is used in cutlery, steam and gas turbine blades, kitchen tools, bolts, nuts, screws, pump and valve components and shafts, mine climbing rugs, dental and medical instruments, nozzles, hardened steel balls and seats for oil well pumps, and other applications. Because this product has a low strength, it can handle some of the pressure that would otherwise add to element cracking. It is not completely impervious to environmental conditions such as aerated saltwater.

Flanges Factory
shape

Table of Content

Alloy 20 Spectacle Blind Flanges, API 6A Spectacle Blind Flange, ANSI B16.5 Spectacle Flanges, Flat Faced Spectacle Blind Flanges, Carbon Steel Spectacle Blind Flange, Inconel Raised Face Spectacle Flange, Nickel Alloy Spectacle Plate Flanges, ASTM A182 SS Spectacle Flange Manufacturer In Mumbai, India.

Titanium Alloy Spectacle Flanges provides modest corrosion protection in different atmospheres, comparable to super austenitic alloy types and intermediate between standard austenitic alloy and highly alloyed molybdenum. When welding this steel, techniques that work against distortion (such as back-step order welding, and allocating welders when the components are suitably big) must be strictly followed. This steel is frequently used in Air Pollution Control (scrubbers for coal-fired power stations) and Chemical Processing (process machinery for the manufacture of sulphuric, phosphoric, inorganic and organic acids, and phosphate-based fertilisers).

To minimise the possibility of cracking, Duplex Steel Spectacle Flanges recommends preheating the work component to 350°F - 400°F. (177 Degree C - 204 Degree C).In the presence of harsh nitric acid, this steel has lesser resilience than molybdenum-free alloys. Because the assault is tiny and may be concealed in a crevice or covered by corrosion products, it often goes undetected until perforation or leakage happens.Resistance to chloride ion pitting or crevice corrosion can be evaluated in laboratory tests because this steel is tested with replica crevices affixed, and the test temperature is increased after each test period with no attack noted. This steel is used for components that require a mix of strength, toughness, and corrosion protection.

Spectacle Flanges

Get a best quote for SS Spectacle Flanges, We Keep Bulk Stock of Raised Face Spectacle Blind Flanges at our stockyard, contact us to request a quote.

Spectacle Blind Flanges Specifications

Size Chart 1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Standards ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ASME Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ASME B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
Pressure Rating ANSI Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
DIN 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
JIS 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
UNI 6Bar 10Bar 16Bar 25Bar 40Bar
EN 6Bar 10Bar 16Bar 25Bar 40Bar
Coating Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized
Most Common Types Forged / Threaded / Screwed / Plate
Test Certificates EN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
Production technique
  • Forged, Heat treated and machined
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
Special design

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

ASME DIN, GOST, JIS, UNI, BS, AS2129, Spectacle, EN, SABS, NFE etc.
ANSI B16.5 Class 150 Spectacle Flanges: -BS Flange, EN Flange, API 6A Flanges, ASME Flanges, ASME Flanges, DIN Flanges, EN1092-1 Flanges, UNI Flanges, JIS/ KS Flanges, BS4504 Flanges, GB Flanges, Spectacle C207 Flanges, GOST Flanges, PSI Flangse

  • B.S: BS4504 , BS3293, BS1560, BS10
  • AS 2129: Table D; Table E; Table H
  • ASME B16.5, ASME B16.47 Series A & B, MSS SP44, ASA, API-605, Spectacle, Custom Drawings
  • ASME : ASME B16.5, ASME B16.47(API605), MSS SP44, ASME B16.5, ASME B16.48
  • ASME B16.5, ASME B16.47, MSS SP44, ASME B16.5, ASME 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 ANSI B16.5 Class 150 Spectacle Flanges
  • The other standard: Spectacle C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276
Uses & Application
  • Bitumen upgraders.
  • Heavy oil refineries.
  • Nuclear power (mostly seamless).
  • Petrochemicals and acids.

Material Grades of Spectacle Blind Flanges

Stainless Steel Spectacle Blind Flanges ASTM/ASME A/SA182 F304, F304L, F316, F316L, ASTM/ASME A/SA351 CF8, CF3, CF8M, CF3M, DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404, DIN 1.4308, DIN 1.4408, DIN 1.4306, DIN 1.4409
Carbon Steel Spectacle Blind Flanges ASTM/ASME A/SA105 A/SA105N & A/SA216-WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80)
Alloy Steel Spectacle Blind Flanges ASTM A182 / ASME SA182 F5, F9, F11, F12, F22, F91
Titanium Spectacle Blind Flanges ASTM B381 / ASME SB381, Titanium Gr. 1, Titanium Gr. 2, Titanium Gr. 4, Titanium Gr. 5, Titanium Gr. 7
ASTM R50250/GR.1 | R50400/GR.2 | R50550/GR.3 | R50700/GR.4 | GR.6 |R52400/GR.7 | R53400/GR.12 | R56320/GR.9 |R56400/GR.5
Copper Spectacle Blind Flanges T1, T2, C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910,C10920, TP1, TP2, C10930, C11000, C11300, C11400, C11500, C11600, C12000,C12200, C12300, TU1, TU2, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200, C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C68700, C70400, C70600, C70620, C71000, C71500, C71520, C71640, etc
Copper Nickel Spectacle Flanges ASTM / ASME SB 61 / 62 / 151 / 152, Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640
Inconel Spectacle Blind Flanges ASTM B564 / ASME SB564, Inconel 600, 601, 625, 718, 783, 690, x750 ANSI B16.47 Class 150 Spectacle Flanges
Hastelloy Spectacle Blind Flanges ASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X Flanges
Monel Spectacle Blind Flanges ASTM B564 / ASME SB564, Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)
Alloy 20 Spectacle Blind Flanges ASTM B462 / ASME SB462, Carpenter® 20 Alloy, Alloy 20Cb-3
Aluminium Spectacle Blind Flanges 5052 /6061/ 6063 / 2017 / 7075 / etc.
Nickel Alloy Spectacle Blind Flanges ASTM B564 / ASME SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205LC
Duplex Steel Spectacle Blind Flanges S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Super Duplex Spectacle Blind Flanges S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Incoloy Spectacle Blind Flanges ASTM B564 / ASME SB564, Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925 Flanges
254 SMO Spectacle Blind Flanges ASTM A182 / ASME SA182, SMO 254/6Mo, UNS S31254, DIN 1.4547
Nimonic Spectacle Blind Flanges Nimonic 75, Nimonic 80A, Nimonic 90
Brass Spectacle Blind Flanges 3602 / 2604 / H59 / H62 / etc.
Other Spectacle Blind Flanges material Tin bronze, Alumunum bronze, Lead bronze

Dimensions of Spectacle Blind Flanges

ANSI/ASME/ASA B16.5 150lb/sq.in. Flanges
ø D b g m J h k Holes l Kg.
1/2" 88,9 11,1 34,9 30,2 22,3 15,9 60,3 4 15,9 0,400
3/4" 98,4 12,7 42,9 38,1 27,7 15,9 69,8 4 15,9 0,700
1" 107,9 14,3 50,8 49,2 34,5 17,5 79,4 4 15,9 0,800
1 1/4" 117,5 15,9 63,5 58,8 43,2 20,6 88,9 4 15,9 1,100
1 1/2" 127,0 17,5 73,0 65,1 49,5 22,2 98,4 4 15,9 1,400
2" 152,4 19,0 92,1 77,8 62,0 25,4 120,6 4 19,0 2,200
2 1/2" 177,8 22,2 104,8 90,5 74,7 28,6 139,7 4 19,0 3,600
3" 190,5 23,8 127,0 107,9 90,7 30,2 152,4 4 19,0 4,100
3 1/2" 215,9 23,8 139,7 122,2 103,4 31,7 177,8 8 19,0 5,200
4" 228,6 23,8 157,2 134,9 116,1 33,3 190,5 8 19,0 5,600
5" 254,0 23,8 185,7 163,6 143,8 36,5 215,9 8 22,2 6,300
6" 279,4 25,4 215,9 192,1 170,7 39,7 241,3 8 22,2 7,500
8" 342,9 28,6 269,9 246,1 221,5 44,4 298,4 8 22,2 12,600
10" 406,4 30,2 323,8 304,8 276,3 49,2 361,9 12 25,4 18,500
12" 482,6 31,7 381,0 365,1 327,1 55,6 431,8 12 25,5 28,000
14" 533,4 34,9 412,7 400,0 359,1 57,1 476,2 12 28,6 36,000
16" 596,9 36,5 469,9 457,2 410,5 63,5 539,7 16 28,6 46,000
18" 635,0 39,7 533,4 504,8 461,8 68,3 577,8 16 31,7 50,000
20" 698,5 42,9 584,2 558,8 513,1 73,0 635,0 20 31,7 64,000
22" 749,3 46,0 641,2 609,6 564,4 79,4 692,1 20 34,9 72,000
24" 812,8 47,6 692,1 663,6 615,9 82,5 749,3 20 34,9 89,000
ANSI/ASME/ASA B16.5 600lb/sq.in. Flanges
ø D b g m J h k Holes l Kg.
1/2" 95,2 14,3 34,9 38,1 22,3 22,2 66,7 4 15,9 0,800
3/4" 117,5 15,9 42,9 47,6 27,7 25,4 82,5 4 19,0 1,400
1" 123,8 17,5 50,8 54,0 34,5 27,0 88,9 4 19,0 1,600
1 1/4" 133,3 20,6 63,5 63,5 43,2 28,6 98,4 4 19,0 2,100
1 1/2" 155,6 22,2 73,0 69,8 49,5 31,7 114,3 4 22,2 3,100
2" 165,1 25,4 92,1 84,1 62,0 36,5 127,0 8 19,0 3,700
2 1/2" 190,5 28,6 104,8 100,0 74,7 41,3 149,2 8 22,2 5,400
3" 209,5 31,7 127,0 117,5 90,7 46,0 168,3 8 22,2 7,300
3 1/2" 228,6 34,9 139,7 133,3 103,4 49,2 184,1 8 25,4 8,900
4" 273,0 38,1 157,2 152,4 116,1 54,0 215,9 8 25,4 11,800
5" 330,2 44,4 185,7 188,9 143,8 60,3 266,7 8 28,6 24,500
6" 355,6 47,6 215,9 222,2 170,7 66,7 292,1 12 28,6 29,500
8" 419,1 55,6 269,9 273,0 221,5 76,2 349,2 12 31,7 43,000
10" 508,0 63,5 323,8 342,8 276,3 85,7 431,8 16 34,9 70,000
12" 558,8 66,7 381,0 400,0 327,1 92,1 488,9 20 34,9 86,000
14" 603,2 69,8 412,7 431,8 359,1 93,7 527,0 20 38,1 100,000
16" 685,8 76,2 469,9 495,3 410,5 106,4 603,2 20 41,3 142,000
18" 742,9 82,5 533,4 546,1 461,8 117,5 654,0 20 44,4 175,000
20" 812,8 88,9 584,2 609,6 513,1 127,0 723,9 24 44,4 232,000
22" 869,9 95,2 641,2 666,7 564,4 133,3 777,9 24 47,6 292,000
24" 939,8 101,6 692,1 717,5 615,9 139,7 838,2 24 50,8 330,000

You need our support, to have any projects?

Get Free Quotes Contact Us

ASME B16.5 Spectacle Flange Weight Chart

Rated Diameter O.D. of Pipe Flange Parameter Neck Size Size of R.F. Bolts Approx. Weight
DN d1 D d5 b k h d3 r d4 f No. of
holes		 d2 KG
10 17.2 90 17.7 14 60 20 30 4 40 2 4 14 0.56
15 21.3 95 22 14 65 20 35 4 45 2 4 14 0.62
20 26.9 105 27.6 16 75 24 45 4 58 2 4 14 0.91
25 33.7 115 34.4 16 85 24 52 5 68 2 4 14 1.09
32 42.4 140 43.1 16 100 26 60 5 78 2 4 18 1.58
40 48.3 150 49 16 110 26 70 5 88 3 4 18 1.76
50 60.3 165 61.1 18 125 28 85 5 102 3 4 18 2.39
65 76.1 185 77.1 18 145 32 105 5 122 3 4 18 3.1
80 88.9 200 90.3 20 160 34 118 5 138 3 8 18 3.77
100 114.3 220 115.9 20 180 38 140 5 158 3 8 18 4.29
125 139.7 250 141.6 22 210 40 168 5 188 3 8 18 5.86
150 168.3 285 170.5 22 240 44 196 5 212 3 8 22 7.22
175 193.7 315 196.1 24 270 44 224 6 242 3 8 22 9.18
200 219.4 340 222 24 295 44 247 6 268 3 8 22 9.95
250 273 395 276 26 350 46 300 6 320 3 12 22 12.69
300 323.9 445 327 26 400 46 352 6 370 4 12 22 14.4
350 355.6 505 359 26 460 53 398 10 430 4 16 22 22.36
400 406.4 565 410 26 515 57 448 10 482 4 16 26 26.85
450 457 615 461 28 565 62 502 10 532 4 20 26 32.53
500 508 670 512 28 620 67 552 10 585 4 20 26 37.84
600 610 780 614 28 725 75 658 10 685 5 20 30 49.32
700 711 895 716 30 840 77 760 10 800 5 24 30 63.86
800 813 1015 818 32 950 84 864 10 905 5 24 33 85.19
900 914 1115 920 34 1050 88 969 10 1005 5 28 33 101.4
1000 1016 1230 1022 34 1160 92 1071 10 1110 5 28 36 119.7

Ready Stock of Spectacle Blind Flanges

  • Hastelloy Flat Faced Spectacle Blind Flanges
  • Carbon Steel Spectacle Flanges
  • ANSI B16.5 Class 150 Spectacle Flanges
  • Spectacle Plate Flanges
  • ASTM A182 Stainless Steel Spectacle Blind Flange
  • Super Duplex Steel Spectacle Flange
  • SS Spectacle Blind Flange
  • Stainless Steel Spectacle Blind Flanges
  • High Quality Spectacle Blind Flange
  • DIN-PN16 Steel Spectacle Blind Flanges
  • Duplex Steel Raised Face Spectacle Flanges
  • Copper Nickel Spectacle Pipe Flanges

  • ANSI B16.5 Spectacle Blind Flange
  • Hastelloy Spectacle Raised Face Flanges
  • Class 600 Spectacle Blind Flange Stockist
  • Super Duplex 2507 Spectacle Blind Flanges
  • Alloy 20 Spectacle Blind Flanges
  • Class 150 Spectacle Flange
  • Nickel Alloy 200 Spectacle Flanges
  • High Nickel Alloy Spectacle Flanges
  • Duplex Steel 2205 Spectacle Flange
  • Titanium Spectacle Blind Flanges
  • 254 SMO Spectacle Flange Supplier
  • ANSI B16.5 class 150 Spectacle Flange

Spectacle Flanges Application Industries

Application Industries

Refineries

90%

Oil and Gas Industry

96%

Power Generation

80%

Pharmaceutical Equipment

85%

Pulp & Paper Industry

88%