Steel Pipe Fittings And Flanges Suppliers In UAE, Qatar, Kuwait, Oman, Malaysia, Canada, Venezuela, USA.

ASME B16.5 Flat Face Flanges Dimensions

High-Quality Stainless Steel Flat Face Flange Manufacturer In India And DIN 2576 Flat Flange Specification Format.

Stainless Steel Flat Flange

Stainless Steel Flat Flange

Din 2576 Flat Flange

Din 2576 Flat Flange

Carbon Steel Flat Face Flange

Carbon Steel Flat Face Flange


What Does Flat Face Flange Mean?


A carbon steel flat face flange is shortly referred to as FF. This weld neck flat face flange is a component which has been machined to be flat and, therefore does not have a ridge like structure as seen in either a raised face or ring type joint flange. The flat surface of the socket weld flat face flange permits the gasket to have full contact with the entire surface of the mating material. The design of the flat face has been created in such a manner for the sole purpose of eliminating the bending movement applied on the flange when the bolts have been torqued. When using either a cast iron or a fiberglass material flanges, this bending movement that occurs on it can easily break the flange.

Flange Steel Welding Slip-on Flat Face B-2220

Flange Steel Welding Slip-on Flat Face B-2220

Ring Type Gasket For Flat Face Flange

Ring Type Gasket For Flat Face Flange

Raised Face To Flat Face Flange Adapter

Raised Face To Flat Face Flange Adapter


using flat face gasket on raised face flange

Using Flat Face Gasket On Raised Face Flange?

It is possible albeit uncommon for flat face flanges gaskets to be metallic gaskets. Usually gaskets for these flat face flanges are made from non-metallic materials consisting of EPDM or Viton. It should go without saying that only a flat face gasket should be used on a Flat Flange. In general, hydraulic flat face flanges is used in low pressure as well as low temperature environments, for instance, either - water treatment or pump suction flanges.


What Is The Difference Between Rf And Ff Flange?

  • FF Flange : A flat face flange is shortly referred to as FF. This flat face flange is a component which has been machined to be flat and, therefore does not have a ridge like structure as seen in either a raised face or ring type joint flange.

  • RF Flange : Raised Face Flanges have their gasket surfaces above their bolting circles, RF Flanges are used for their durability in piping systems. ASME B16.5 Raised Face Flange is one of the most used standard of flanges.


ASME B16.5 Flat Face Flange Dimensions


ASME B16.5 Flat Face Flange Dimensions

NPS Pipe Diameter Flange Inside Daimeter Number of holes Flange Daimeter Thickness of Flange Daimeter of Bolt Circle Daimeter of Bolt Holes Approx.Weight in kg
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

Flat Flange DIN 2576 Dimensions

Flat Flange DIN 2576 Dimensions

NPS
Dimensions Of Flange
Bolts Size
Weight of
one flange
7.85 kilogram/
dm3) kilogram
NW
d1
ds
D
b1
k
Number
Thread
d2
10
14
17.2)
14.5
17.7
90
14
60
4
M12
(1/2")
14
0.613
0.605
15
20
21.3)
20.5
21.8
95
14
65
4
M12
(1/2")
14
0675
0.669
20
25
26.9)
25.5
27.4
105
16
75
4
M12
(1/2")
14
0.947
0.936
25
30
33.7)
30.5
34.2
115
16
85
4
M12
(1/2")
14
1.14
1.11
32
38
42.4)
38.5
42.9
140
16
100
4
M16
(5/8")
18
1.66
1.62
40
44.5
48.3)
45
48.8
150
16
110
4
M16
(5/8")
18
1.89
1.86
50
57
60.3)
57.5
60.8
165
18
125
4
M16
(5/8")
18
2.51
2.47
65
76.1)
76.6
185
18
145
4
M16
(5/8")
18
3.00
80
88.9)
89.4
200
20
160
4
M16
(5/8")
18
3.79
100
108
114.3)
108.5
114.8
220
20
180
8
M16
(5/8")
18
4.20
4.03
125
133
139.7)
133.5
140.2
250
22
210
8
M16
(5/8")
18
5.71
5.46
150
159
168.3)
159.5
168.8
285
22
210
8
M16
(3/4")
23
6.72
6.57
175
191
193.7)
192
194.7
315
24
270
8
M20
(3/4")
23
8.60
8.45
200
216
219.1)
216
220.1
340
24
295
8
M20
(3/4")
23
9.50
9.31
250
267
273)
268
274
395
26
350
12
M20
(3/4")
23
12.5
11.9
400
406.4
419
407.4
420
565
32
515
16
M24
(7/8")
27
27.9
25.9
500
508)
521
509
522
670
38
620
20
M24
(7/8")
27
37.9
41.1

Check Carbon Steel Flat Face Flange Thickness Chart, Buy Non Metallic Flat Flanges Gaskets For Pipe At Low Price In India.


PN21 Flat Face Plate Flange Dimensions


Flat Face Plate Flange
Flat Facing Flange Price List
Type Of Flanges Size Material Class Price In India (INR)
Flat Face Flanges 1" ASTM A105 Class 150 438.00
FF 2" ASTM A105 Class 150 678.30
FF 4" ASTM A105 Class 150 1199.99

Please note this is an approx Price of Stainless Steel Flat Flange in Mumbai, India. For final Carbon Steel Flat Face Flange Price List Please Call on 91 - 22 - 67437342 or drop an Email to info@rajtilakmetal.com


Stainless Steel Flat Flange


View Difference Between A Raised Face And Flat Face Flange?, FF Flanges Weight Chart According to ANSI B16.5.


Standard Specification Of Flat Flange

Material Specification Of : ASME B16.5 Flat Face Flange
Pressure Rating Class 150 To Class 2500
High Temperature Above 200°C (400°F) For Class 150 Or Above 400°C (750°F)
Low Temperature Above -29 Degree C (−20°F)
Common Types Of Flanges: Slip On (SORF), Weld Neck (WNRF), Blind (BLRF), Lap Joint (Loose), Threaded (NPT), Socket-Weld (SWRF)
Special Types Of Flanges : Nipoflange, Elboflange, Latroflange, Swivel Flanges, Expanding Flanges, Reducing Flanges, Weldoflange
Marking Standard Name of Manufacturer
Schedule
Type of Flange Facing
Nominal Pipe Size
Pressure Class
ASME B16 Designation
Standard Cover : pressure ratings & temperature ratings, materials, marking, dimensions, weight, tolerances, testing
Contact Faces RTJ (Ring Type Joint), FF (Flat Face), RF (Raised Face), T/G (Tongue And Groove ), M/F (Male And Female)
Size Chart Normal Pipe Size 1/2 to NPS 24"
Materials Stainless Steel (Grade 304/L, 316/L), Carbon Steel (ASTM A105 And ASTM A350), Alloy Steel (ASTM A182), Mild Steel, Duplex Steel, Pressure Vessel Steel, Titanium, Super Duplex Steel, Nickel Alloy, Monel, Inconel, Hastelloy, Copper Nickel, Cast Iron, Wrought Iron.
Thickness Normal Pipe Size ≤ 18
Bore Diameter Normal Pipe ≤ 10
Flanges Standards EN 1092-1, JIS, ASME B16.5, ASME B16.47 type A, UNI, DIN
Bolt Type high strength bolts
medium strength bolts
low strength bolts
European Standard Flanges JIS B2220 Flanges (5k to 30k) and KS1503 flanges
Russian-Standard Flanges GOST 12820 / 12821-80, DIN, UNI, EN 1092-1
South African Standard Flanges SANSflanges And SABS flanges
Surface Finish smooth, concentric serrated, stock
Gaskets Types Full Face Gasket
Flat Ring Gasket
Metallic Ring Gakset
Advantages Of Pipe Flange Used to Connect Pipe System
Easy Repair Pipe System
Assembled Without Welding

Flat Face Weld Neck Flange Pressure Rating Formula, Buy Directly From ASME B16.5 FF Flange Supplier In Mumbai, India.

Flat Face Flange Pressure Rating

Asme B16 5 Ff Flange Pressure Pressure
Temperature (°C)
Class
Class 150Class 300Class 400Class 600Class 900Class 1500Class 2500
-29 - 38 19.8 51.7 68.9 103.4 155 259 431
50 19.5 51.7 68.9 103.4 155 259 431
100 17.7 51.5 68.7 103.0 155 258 429
150 15.8 50.2 66.8 100.3 151 251 418
200 13.8 48.6 64.8 97.2 146 243 405
250 12.1 46.3 61.7 92.7 139 232 386
300 10.2 42.9 57.0 85.7 129 214 357
325 9.3 41.4 55.0 82.6 124 207 344
350 8.4 40.0 53.4 80.0 120 200 334
375 7.4 37.8 50.4 75.7 114 189 315
400 6.5 34.7 46.3 69.4 104 174 290
425 5.5 28.8 38.4 57.5 86.3 144 240
450 4.6 23.0 30.7 46.0 69.0 115 192
475 3.7 17.1 22.8 34.2 51.3 85.4 142
500 2.8 11.6 15.4 23.2 34.7 57.9 96.5
538 1.4 5.9 7.9 11.8 17.7 29.5 49.2

Flat Face Flange Thickness

ANSI B16.5 Flat Face Flange Wall Thickness
NPS (Normal Pipe Sizes) Outside Daimeter (O.D.) Schedule 10 Schedule 20 Schedule 30 STD Wall Schedule 40 Schedule 60 EXT Hvy Schedule 80 Schedule 100 Schedule 120 Schedule 140 Schedule 160 XX Hvy
½ 0.84 0.083 ... ... 0.109 0.109 ... 0.147 0.147 ... ... ... 0.188 0.294
¾ 1.05 0.083 ... ... 0.113 0.113 ... 0.154 0.154 ... ... ... 0.219 0.308
1 1.315 0.109 ... ... 0.133 0.133 ... 0.179 0.179 ... ... ... 0.25 0.358
1 ¼ 1.66 0.109 ... ... 0.14 0.14 ... 0.191 0.191 ... ... ... 0.25 0.382
1 ½ 1.9 0.109 ... ... 0.145 0.145 ... 0.2 0.2 ... ... ... 0.281 0.4
2 2.375 0.109 ... ... 0.154 0.154 ... 0.218 0.218 ... ... ... 0.344 0.436
2 ½ 2.875 0.12 ... ... 0.203 0.203 ... 0.276 0.276 ... ... ... 0.375 0.552
3 3.5 0.12 ... ... 0.216 0.216 ... 0.3 0.3 ... ... ... 0.438 0.6
3 ½ 4 0.12 ... ... 0.226 0.226 ... 0.318 0.318 ... ... ... ... 0.636
4 4.5 0.12 ... ... 0.237 0.237 ... 0.337 0.337 ... 0.438 ... 0.531 0.674
5 5.563 0.134 ... ... 0.258 0.258 ... 0.375 0.375 ... 0.5 ... 0.625 0.75
6 6.625 0.134 ... ... 0.28 0.28 ... 0.432 0.432 ... 0.562 ... 0.719 0.864
8 8.625 0.148 0.25 0.277 0.322 0.322 0.406 0.5 0.5 0.594 0.719 0.812 0.906 0.875
10 10.75 0.165 0.25 0.307 0.365 0.365 0.5 0.5 0.594 0.719 0.844 1 1.125 1
12 12.75 0.18 0.25 0.33 0.375 0.406 0.562 0.5 0.688 0.844 1 1.125 1.312 1
14 14 0.25 0.312 0.375 0.375 0.438 0.594 0.5 0.75 0.938 1.094 1.25 1.406 ...
16 16 0.25 0.312 0.375 0.375 0.5 0.656 0.5 0.844 1.031 1.219 1.438 1.594 ...
18 18 0.25 0.312 0.438 0.375 0.562 0.75 0.5 0.938 1.156 1.375 1.562 1.781 ...
20 20 0.25 0.375 0.5 0.375 0.594 0.812 0.5 1.031 1.281 1.5 1.75 1.969 ...
22 22 0.25 ... ... 0.375 ... ... 0.5 ... ... .... .... .... ....
24 24 0.25 0.375 0.562 0.375 0.688 0.969 0.5 1.219 1.531 1.812 2.062 2.344 ....
26 26 .... .... .... 0.375 .... .... 0.5 .... .... .... .... .... ....
30 30 0.312 0.5 0.625 0.375 .... .... 0.5 .... .... .... .... .... ....
36 36 0.312 0.5 0.625 0.375 0.75 .... 0.5 .... .... .... .... .... ....
40 40 .... .... .... 0.375 .... .... 0.5 .... .... .... .... .... ....
42 42 …….. …….. …….. 0.375 …….. …….. 0.5 …….. …….. …….. …….. …….. ……..
48 48 …….. …….. …….. 0.375 …….. …….. 0.5 …….. …….. …….. …….. …….. ……..

Check Flat Face Slip On Flange Thickness With Tolerance Chart And We Maintain Good Quality Stock Of Flat Face Threaded Flange And FF Blind Flanges In India.

Flat Face Flange Bolt Length

Class 150 Flanges Class 300 Flanges Class 600 Flanges
NPS # Bolts And Studs Diameter of Bolts And Studs Stud Length # Bolts And Studs Diameter of Bolts And Studs Stud Length # Bolts And Studs Diameter of Bolts And Studs Stud Length
1/16 RF RTJ 1/16 RF RTJ 1/4 RF RTJ
1/2 4 0.50 2-1/4 4 0.50 2-1/2 3 4 0.50 3 3
3/4 4 0.50 2-1/2 4 0.63 3 3-1/2 4 0.63 3-1/2 3-1/2
1 4 0.50 2-1/2 3 4 0.63 3 3-1/2 4 0.63 3-1/2 3-1/2
1-1/4 4 0.50 2-3/4 3-1/4 4 0.63 3-1/4 3-3/4 4 0.63 3-3/4 3-3/4
1-1/2 4 0.50 2-3/4 3-1/4 4 0.75 3-1/2 4 4 0.75 4-1/4 4-1/4
2 4 0.63 3-1/4 3-3/4 8 0.63 3-1/2 4 8 0.63 4-1/4 4-1/4
2-1/2 4 0.63 3-1/2 4 8 0.75 4 4-1/2 8 0.75 4-3/4 4-3/4
3 4 0.63 3-1/2 4 8 0.75 4-1/4 4-3/4 8 0.75 5 5
3-1/2 8 0.63 3-1/2 4 8 0.75 4-1/4 5 8 0.88 5-1/2 5-1/2
4 8 0.63 3-1/2 4 8 0.75 4-1/2 5 8 0.88 5-3/4 5-3/4
5 8 0.75 3-3/4 4-1/4 8 0.75 4-3/4 5-1/4 8 1.00 6-1/2 6-1/2
6 8 0.75 4 4-1/2 12 0.75 4-3/4 5-1/2 12 1.00 6-3/4 6-3/4
8 8 0.75 4-1/4 4-3/4 12 0.88 5-1/2 6 12 1.13 7-1/2 7-3/4
10 12 0.88 4-1/2 5 16 1.00 6-1/4 6-3/4 16 1.25 8-1/2 8-1/2
12 12 0.88 4-3/4 5-1/4 16 1.13 6-3/4 7-1/4 20 1.25 8-3/4 8-3/4
14 12 1.00 5-1/4 5-3/4 20 1.13 7 7-1/2 20 1.38 9-1/4 9-1/4
16 16 1.00 5-1/4 5-3/4 20 1.25 7-1/2 8 20 1.50 10 10
18 16 1.13 5-3/4 6-1/4 24 1.25 7-3/4 8-1/4 20 1.63 10-3/4 10-3/4
20 20 1.13 6-1/4 6-3/4 24 1.25 8 8-3/4 24 1.63 11-1/4 11-1/2
24 20 1.25 6-3/4 7-1/4 24 1.50 9 10 24 1.88 13 13-1/4

Flat Face Flange Gasket Dimensions

NPS In Inches Gasket Inside Daimeter In Inches Gasket Outside Daimeter In Inches Bolt Holes Number Bolt Holes Diameter In Inches Circle Of Bolt In Inches
1/2 13/16 3 1/2 4 5/8 2 3/8
3/4 1 1/16 3 7/8 4 5/8 2 3/4
1 1 5/16 4 1/4 4 5/8 3 1/8
1 1/4 1 5/8 4 5/8 4 5/8 3 1/2
1 1/2 1 7/8 5 4 5/8 3 7/8
2 2 3/8 6 4 3/4 4 3/4
2 1/2 2 7/8 7 4 3/4 5 1/2
3 3 1/2 7 1/2 4 3/4 6
3 1/2 4 8 1/2 8 3/4 7
4 4 1/2 9 8 3/4 7 1/2
5 5 9/16 10 8 7/8 8 1/2
6 6 5/8 11 8 7/8 9 1/2
8 8 5/8 13 1/2 8 7/8 11 3/4
10 10 3/4 16 12 1 14 1/4
12 12 3/4 19 12 1 17
14 14 21 12 1 1/8 18 3/4
16 16 23 1/2 16 1 1/8 21 1/4
18 18 25 16 1 1/4 22 3/4
20 20 27 1/2 20 1 1/4 25
22 22 29 1/2 20 1 3/8 27 1/4
24 24 32 20 1 3/8 29 1/2
26 26 34 1/4 24 1 3/8 31 3/4
28 28 36 1/2 28 1 3/8 34
30 30 38 3/4 28 1 3/8 36
32 32 41 3/4 28 1 5/8 38 1/2
34 34 43 3/4 32 1 5/8 40 1/2
36 36 46 32 1 5/8 42 3/4
38 38 48 3/4 32 1 5/8 45 1/4
40 40 50 3/4 36 1 5/8 47 1/4
42 42 53 36 1 5/8 49 1/2
44 44 55 1/4 40 1 5/8 51 3/4
46 46 57 1/4 40 1 5/8 53 3/4
48 48 59 1/2 44 1 5/8 56
50 50 61 3/4 44 1 7/8 58 1/4
52 52 64 44 1 7/8 60 1/2
54 54 66 1/4 44 1 7/8 62 3/4
60 60 73 52 1 7/8 69 1/4
66 66 80 52 1 7/8 76
72 72 86 1/2 60 1 7/8 82 1/2
84 84 99 3/4 64 2 1/8 95 1/2
96 96 113 1/4 68 2 3/8 108 1/2

Largest Supplier Type Of ASME B16.5 Flat Flange


300 Lb, 1/2 to 56 inches, DN15, ASME B16.5 Flat Flange

300 Lb, 1/2 to 56 inches, DN15, ASME B16.5 Flat Flanges

125 Lb, DN1,400mm, 24 inches, Flat Flange Gasket

125 Lb, DN1,400mm, 24 inches, Flat Flange Gasket

Pn16, Weld Neck Flat Face Flange with Stub End

Pn16, Weld Neck Flat Face Flanges with Stub End

Din 2576, ASTM A105, Threaded Flat Face Flange

Din 2576, ASTM A105, Threaded Flat Face Flanges


Raised Face To Flat Face Flange Adapter For Oil & Gas Projects

Raised Face To Flat Face Flanges Adapter For Oil & Gas Projects

Size 4 Inch, Class 300, Stainless Steel Flat Face Flange

Size 4 Inch, Class 300, Stainless Steel Flat Face Flanges

DIN 2501, PN16, Size DN50, Socket Weld Flat Face Flange

DIN 2501, PN16, Size DN50, Socket Weld Flat Face Flanges

2 Inch, A182 F304, Spacer Ring For Flat Face Flange

2 Inch, A182 F304, Spacer Ring For Flat Face Flanges


EN 1092-1, DN 100, Hydraulic Flat Face Flange

EN 1092-1, DN 100, Hydraulic Flat Face Flanges

1/2 to 64 inches, Class 150, Carbon Steel Flat Face Flange

1/2 to 64 inches, Class 150, Carbon Steel Flat Face Flanges

ASTM A182 F316L, 12 Inch, Class D, 50mm Tow Ball Flat Flange

ASTM A182 F316L, 12 Inch, Class D, 50mm Tow Ball Flat Flanges

SCH 80S, AWWA C207, Exhaust Flat Flange

SCH 80S, AWWA C207, Exhaust Flat Flanges


The use of a Carbon Steel Flat Face Flange is usually seen when the piping or piping components tend to be brittle such as plastic, fiberglass or cast iron.  However, it should be noted that these Flat Face Flanges ASME B16.5 Dimension are available in all different types of materials, including steel. As a flat flange gasket manufacturer in India, we produce these flat flanges in the form of in weld neck, socket weld, slip-on, or threaded.  Typically, flat flange gasket suppliers in India supply these flanges in ANSI 150 & 300 ratings.


We are Suppliers of Stainless Steel Flat Flange Manufacturers in India. We have extensive experience in supplying Carbon Steel Flat Face Flanges And Socket Weld Flat Face Flanges are stocked or available in the following range of sizes and materials for the petrochemical, gas, oil and allied industries.



About Company

We Are EIL And IBR Approved Manufacturer, Exporter, Stockholder, Traders, Dealer, Importer, Wholesaler, Distributor, Supplier of Industrial Pipe Fittings & Flanges, Forgings And Fasteners In Mumbai, India.


Our Official Address

153 / 154, “A” Wing, Siddheshdeep Tower,
Shop No. A-28, Ground Floor, P.B. Marg, Near Navjivan Society,
Mumbai– 400 008 (India).


Telephone & Fax No.

Tel Number : +91 - 22 - 6743 7342,
+91 - 22 - 6659 5135
Fax Number : +91 - 22 - 66595135

Rajtilak Metal © 2021 All Right Reserved. Website Designed And SEO by Mesotek
Poland | Malaysia | Singapore | UAE | USA | UK | Philippines | Iran | Italy