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ISO Approved Manufacturers Of MSS SP-44 ASME B16.5 Flat Face Flange In India, Check Specification Of BS 4504 Stainless Steel Flat Flange.


Applications that require the use of flat face flanges are frequently those systems where the mating flanges or flanged fitting is produced from a casting. The ANSI B16.5 standard is limited to those flanges and their corresponding fittings which are generally made from cast or forged materials. An ASME B16.5 Flat Face Flange has a gasket surface in the same plane as the bolting circle face. The ANSI B16.5 Flat Face Flange Standards also includes requirements as well as recommendations regarding flanges gaskets, flanges bolting, and flanges joints. Essential points covered by the standard include pressure-temperature ratings, tolerances, marking, materials, dimensions, testing, and the various methods of designating openings for Carbon Steel Flat Face Flange and flanged fittings. While the pressure rating of these flanges is in the following class designations i.e. 150, 300, 400, 600, 900, 1500, and 2500, a Stainless Steel Flat Flange is produced by manufacturers in sizes NPS 1/2 through NPS 24.


ASME B16.5 Flat Face Flange
ASME B16.5 Flat Face Flange
ANSI B16.5 Stainless Steel Flat Flange
ANSI B16.5 Stainless Steel Flat Flange
ASTM A350 LF2 Carbon Steel Flange Flat
ASTM A350 LF2 Carbon Steel Flange Flat


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What Is ASME B16.5 Flat Face Flange?


It is important to note that a flat face flange is never to be bolted to a raised face flanges. ASME B31.1 says that when connecting a cast iron Flat Face Slip On Flange to carbon steel flanges, the raised face on the carbon steel flanges must be removed, which is why a full face gasket is required. This is to keep the thin, brittle cast iron ANSI B16.5 Flange Flat Dimensions from being sprung into the gap that has been caused by the raised face of the carbon steel flanges used as a mating.


Specification Of Threaded Flat Face Flanges


Specification : ASME B16.5 Flat Face Flange
Design For Size: ASA, ASME, DIN, PN, JIS, ANSI, BS, EN
ASME B16.5 Application: Nuclear Power Plant
Natural Gas Industry
Chemical Industry
Water Pipeline Industry
Fabrication Industry
Oil And Gas Industry
Connect Type Type: RF, FF, RTJ, LMF, SMF, LJF.
ASA Size Chart : 1/2″ (15 NB) To 48″ (1200NB)
Standards : ASME B16.5, ASME B16.38, EN-1092, BS10, DIN, PN, JIS, ASME B16.47 (Series A, Series B), ISO, GOST, UNI, AWWA, MSS SP44.
Pressure Rating Table: Class 150 LBS, Class 300 LBS, Class 600 LBS, Class 900 LBS, Class 1500 LBS, Class 2500 LBS
Machining Equipment: Bending machine, Sand-blasting machine, Press machine, Pushing Machine, electric bevelling machine etc
Production Process: Forged, Heat Treated and Machined
Coating Flanges Faces : Yellow Transparent, Anti-rust Paint, Cold and Hot Dip Galvanized, Oil Black Paint, Zinc Plated

Stainless steel Flat Face Flanges Dimensions


Stainless steel Flat Face Flange Dimensions

NPS Diameter of Pipe Flange I.Diameter NUmber of holes Flange Diameter Thickness of Flange Diameter of Bolt Circle Diameter of Bolt Holes Approx. Weight
DN ISO DIN D5 BN D b K d2 KG/PCS
10 14 14.5 4 90 16 60 14 0.7
17.2 17.7 4 90 16 60 14 0.69
15 20 21 4 95 16 65 14 0.77
21.3 22 4 95 16 65 14 0.77
20 25 26 4 105 18 75 14 1.06
26.9 27.6 4 105 18 75 14 1.05
25 30 31 4 115 18 85 14 1.27
33.7 34.4 4 115 18 85 14 1.25
32 38 39 4 140 18 100 18 1.86
42.4 43.1 4 140 18 100 18 1.83
40 44.5 45.5 4 150 18 110 18 2.12
48.3 49 4 150 18 110 18 2.09
50 57 58.1 4 165 20 125 18 2.78
60.3 61.1 4 165 20 125 18 2.74
65 76.1 77.1 8 185 22 145 18 3.48
80 88.9 90.3 8 200 24 160 18 4.33
100 108 109.6 8 235 24 190 22 5.82
114.3 115.9 8 235 24 190 22 5.61
125 133 134.8 8 270 26 220 26 7.91
139.7 141.6 8 270 26 220 26 7.6
150 159 161.1 8 300 28 250 26 10.12
168.3 170.5 8 300 28 250 26 9.58
175 193.7 196.1 12 350 32 295 30 14.45
200 219.1 221.8 12 375 34 320 30 16.9
250 267 270.2 12 450 38 385 33 27.28
273 276.2 12 450 38 385 33 26.51
300 323.9 327.6 16 515 42 450 33 36.38
350 355.6 359.7 16 580 46 510 36 52.83
368 372.2 16 580 46 510 36 50.24
400 406.4 411 16 660 50 585 39 74.71
419 423.7 16 660 50 585 39 71.44
500 508 513.6 20 755 52 670 42 86.87
600 610 616.5 20 890 54 795 48 121.84
700 711 716 24 995 58 900 48 150.93
800 813 818 24 1140 64 1030 56 219.08
900 914 920 28 1250 70 1140 56 271.16
1000 1016 1022 28 1360 78 1250 56 344.95

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Types Of ANSI B16.5 Flat Face Flanges


Gost Cs Ct20 Forged Flat Flange Din 2576

Gost Cs Ct20 Forged Flat Flange Din 2576

ASTM A182 SS 400 Weld Neck Flat Face Flange

ASTM A182 SS 400 Weld Neck Flat Face Flange

A182 Stainless Steel Flat Face Socket Weld Flange

A182 Stainless Steel Flat Face Socket Weld Flange

12 Inch ANSI Standard Ring Type Gasket For Flat Face Flange

12 Inch ANSI Standard Ring Type Gasket For Flat Face Flange

High Quality GOST Standard 12820 Threaded Flat Face Flange

High Quality GOST Standard 12820 Threaded Flat Face Flange

Class 1500 Raised Face To Flat Face Flange Adapter

Class 1500 Raised Face To Flat Face Flanges Adapter

AS 4087 F316 DN65 Raised Face To Flat Face Flange Spacer

AS 4087 F316 DN65 Raised Face To Flat Face Flanges Spacer

ASTM A182 F316L 150# Flat Face Slip On Flange

ASTM A182 F316L 150# Flat Face Slip On Flange

ANSI B16.5 Class 150 LB PN10 Flat Face Plate Flange

ANSI B16.5 Class 150 LB PN10 Flat Face Plate Flange

Weld Neck Flange FF Stainless Steel Flat Face Flange

Weld Neck Flange FF Stainless Steel Flat Face Flange

ASME B16.5 Forged Steel Class 300 Hydraulic Flat Face Flange

ASME B16.5 Forged Steel Class 300 Hydraulic Flat Face Flange

EN1092-1 TYPE 01 304 600 Lb Flat Face Flange

EN1092-1 TYPE 01 304 600 Lb Flat Face Flange


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Carbon Steel Flat Plate Flange Dimensions


Carbon Steel Flat Plate Flange Dimensions

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DIN 2576 Flange Flat Manufacturing Material


Dimensions Base Material
ASME B16.47series A & B ASTM A240 (Plate), ASTM A182 (Forgings)
API 605 ASTM A240 (Plate), ASTM A182 (Forgings)
ASME B16.5 ASTM A240 (Plate), ASTM A182 (Forgings)
BS4504 ASTM A182 (Forgings), BS970 (Bar)ASTM A240 (Plate),
BS10 ASTM A182 (Forgings), BS970 (Bar)ASTM A240 (Plate)
EN1092-1 ASTM A182 (Forgings)