UNI Flanges Dimensions

UNI Flanges

UNI Flanges Rapid Overview


  • Sizes: 1/2″ to 48″
  • Custom Size: Yes
  • Pressure Class: Class 150-2500
  • Process : Forging
  • MTC: EN 10204 3.1 and 3.2

 

 

 

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Specifications Chart of UNI Flanges

Specifications Chart of UNI Flanges

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Types
UNI Flanges Types
  • Weld Neck
  • Blind
  • Slip On
  • Socket Weld
Sizes
UNI Pn 10 Carbon Steel Flanges Sizes
  • NPS: 1/2″ to 48″
  • SCH: Sch 5 to XXS
  • Class:150 to 2500#
  • Custom Size Available
Standards
UNI Pn 40 Blind Flanges Application
  • Steam lines
  • Petrochemical plants
  • Power plants
Advantages
UNI Pn 64 Slip on Flanges Advantages
  • High tensile strength
  • Low maintenance
  • Excellent resistance
Supporting Material
UNI 2278 Threaded Flanges Material
  • Flange Bolts
  • Gasket
  • Ring Joint
Testing Facility
UNI 2282 Pn16 Expander Flanges Facility
  • NDT
  • X-ray Detector
  • Hydro test
Face
UNI 2282 PN16 Flanges Face
  • T&G
  • RF
  • FF
  • RTJ
Finish
UNI Square Flanges Finish
  • Serrated
  • Mirror
  • Spiral/Concentric
  • Smooth
Origin
UNI Pn 16 Stainless Steel Flanges Origin
  • Korean
  • European
  • Indian
  • Japan
Threads
UNI Flanges Threads
  • NPT
  • BSPT
  • FNPT, MNPT
  • BSPP
Process
UNI Pn 64 Slip on Flanges Process
  • Forging
  • Cutting
  • Casting
  • Rolling
Testing
UNI Flange Adapter Testing
  • Hardness test
  • Tensile
  • Pressure
  • PMI

Refer Dimensions Of Series 2282/ 1400/ 1300 UNI Flange for Steel Pipe

UNI 2281 PN10 Welding Neck Flange Dimensions Chart
Designation Directions a r b f d1 D h h1 m s Screw Hole Weight In KG
Rated
Dia.
E*ternal dia.
of the pipe
Kilogram
32 38 100 6 16 18 39 140 40 6 52 3 M 16 4 1,82
42,4 43,5 56 1,80
2000 2020 2230 16 54 48 2024 2325 150 30 2072 14 M 45 * 3 48 543
20 25 75 4 16 14 26 105 38 6 38 2,5 M 12 4 1,03
26,9 28 40 1,03
1200 1220 1380 16 38 39 1224 1455 115 25 1255 10 M 36 * 3 32 180
1400 1420 1590 16 42 42 1424 1675 120 25 1460 11 M 39 * 3 36 248
25 30 85 4 16 14 31 115 38 6 42 2,8 M 12 4 1,24
33,7 34,5 45 1,23
15 20 65 4 14 14 21 95 35 6 30 2,5 M 12 4 0,73
21,3 22,5 32 0,73
50 57 125 6 18 18 58 165 45 8 72 3,5 M 16 4 2,81
60,3 61,5 75 2,78
65 76,1 145 6 18 18 77 185 45 10 90 3,5 M 16 4 3,40
40 44,5 110 6 16 18 45,5 150 42 7 60 3 M 16 4 2,10
48,3 49,5 64 2,08
80 88,9 160 8 20 18 90 200 50 10 105 3,7 M 16 8** 4,20
175 193,7 270 10 24 22 195,5 315 60 12 210 5 M 20 8 10,3
250 267 350 12 26 22 269 395 68 16 285 5,5 M 20 12 15,6
273 275 292 15,2
300 323,9 400 12 26 22 326 445 68 16 344 6 M 20 12 18,0
200 219,1 295 10 24 22 221 340 62 16 235 5 M 20 8 11,4
350 355,6 460 12 26 22 357,5 505 68 16 385 6,4 M 20 16 24,5
368 370 22,5
1600 1620 1820 16 46 48 1624 1915 130 25 1665 12 M 45 * 3 40 352
1800 1820 2020 16 50 48 1824 2115 140 30 1868 13 M 45 * 3 44 433

Most Popular 4/6/8 inch or Custom Size UNI Flange for Ductile Iron Pipe Manufacturer in India

Ductile Iron UNI Flange Bolt Size

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Class 300 Flanges Class 150 Flanges Class 600 Flanges
# Bolts And Studs Diameter of Bolts And Studs Stud Length NPS # 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
4 0.50 2-1/2 3 1/2 4 0.50 2-1/4 – 4 0.50 3 3
4 0.63 3 3-1/2 3/4 4 0.50 2-1/2 – 4 0.63 3-1/2 3-1/2
4 0.75 3-1/2 4 1-1/2 4 0.50 2-3/4 3-1/4 4 0.75 4-1/4 4-1/4
8 0.63 3-1/2 4 2 4 0.63 3-1/4 3-3/4 8 0.63 4-1/4 4-1/4
8 0.75 4-1/2 5 4 8 0.63 3-1/2 4 8 0.88 5-3/4 5-3/4
8 0.75 4-3/4 5-1/4 5 8 0.75 3-3/4 4-1/4 8 1.00 6-1/2 6-1/2
12 0.75 4-3/4 5-1/2 6 8 0.75 4 4-1/2 12 1.00 6-3/4 6-3/4
12 0.88 5-1/2 6 8 8 0.75 4-1/4 4-3/4 12 1.13 7-1/2 7-3/4
16 1.00 6-1/4 6-3/4 10 12 0.88 4-1/2 5 16 1.25 8-1/2 8-1/2
16 1.13 6-3/4 7-1/4 12 12 0.88 4-3/4 5-1/4 20 1.25 8-3/4 8-3/4

Offer a Complete Range of Italian or European standards UNI 2223 flange With Pressure PN6-PN40

UNI PN 10 Carbon Steel Flanges Pressure Rating
ASME B16.5 Pressure Pressure
Temperature (°C) Class
Class 1500 Class 400 Class 2500 Class 600 Class 300 Class 150 Class 900
-29 – 38 259 68.9 431 103.4 51.7 19.8 155
50 259 68.9 431 103.4 51.7 19.5 155
100 258 68.7 429 103.0 51.5 17.7 155
150 251 66.8 418 100.3 50.2 15.8 151
200 243 64.8 405 97.2 48.6 13.8 146
250 232 61.7 386 92.7 46.3 12.1 139
300 214 57.0 357 85.7 42.9 10.2 129
325 207 55.0 344 82.6 41.4 9.3 124
350 200 53.4 334 80.0 40.0 8.4 120
375 189 50.4 315 75.7 37.8 7.4 114
400 174 46.3 290 69.4 34.7 6.5 104
425 144 38.4 240 57.5 28.8 5.5 86.3
450 115 30.7 192 46.0 23.0 4.6 69.0
475 85.4 22.8 142 34.2 17.1 3.7 51.3
500 57.9 15.4 96.5 23.2 11.6 2.8 34.7
538 29.5 7.9 49.2 11.8 5.9 1.4 17.7
Dimensions of UNI Flanges

Dimensions of UNI Flanges

Directions for the designation d1 D a f b Holes Weight*
Kg
Screws
Rated
Diameter
External diameter
of the pipe
Nominal Tolerance
15 20 20,5 +0,5 80 55 11 10 4 0,34 M 10
21,3 22 0,33
20 25 25,5 90 65 11 12 4 0,51
26,9 27,5 0,50
25 30 30,5 100 75 11 12 4 0,63
33,7 34 0,61
32 38 38,5 120 90 14 14 4 1,09 M 12
42,4 43 1,05
40 44,5 45 130 100 14 14 4 1,26
48,3 49 1,23
50 57 58 140 110 14 14 4 1,38
60,3 61,5 1,35
65 76,1 77 160 130 14 14 4 1,68
80 88,9 90 190 150 18 16 4 2,63 M 16
100 108 109 +1,0 210 170 18 16 4*** 3,05
114,3 115,5 2,92
125 133 134,5 240 200 18 18 8 4,11
139,7 141 3,90
150 159 160,5 265 225 18 20 8 5,16
168,3 170 4,78
175 193,7 195,5 295 255 18 22 8 6,27
200 219,1 221 320 280 18 22 8 6,91
250 267 269 375 335 18 24 12 9,53
273 275 9,04
300 323,9 326 440 395 22 24 12 12,1 M 20
350 355,6 358 490 445 22 26 12 17,0
368 370,5 15,6
400 406,4 409 +1,5 540 495 22 28 16 20,1
419 422 18,3
450 457,2 460,2 ±5 595 550 22 28 16 25,8
500 508 511 645 600 22 30 20 30,0
600 609,6 612,6 755 705 25 30 20 37,9 M 22
700 711,2 714,2 860 810 25 32 24 47,9
800 812,8 815,8 975 920 30 34 24 62,9 M 27
900 914,4 917,4 1075 1020 30 36 24 74,6
1000 1016 1019 1175 1120 30 36 28 81,9
UNI Flange Technical Data Info

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Description Rated Pressure / Presión Nominal / Nenndruck (in bar) (1 bar = 14.5 psi)
– 1 2.5 6 10 16 25 40 64 100 160 250 320 400
– DIN
 Flat flange for welding (slip-on) – – 2276 2277 2278 6083 6084 – – – – – –
 Lapped flanges, Plain collars – – 6088 6089 6090 – – – – – – – –
 Loose flanges and rings with neck for welding – – – – – – – – – – – – –
 Oval plain threaded flanges – – – – – – – – – – – – –
 Blind Flanges – – 6091 6092 6093 6094 6095 6096 6097 6098 6099 – –
 Hubbed slip-on flanges for welding – – – – – – – – – – – – –
 Loose flanges and rings for welding – – – – – – – – – – – – –
 Oval flanges, with neck threaded – – – – – – – – – – – – –
 Welding neck flanges – – 2280 2281 2282 2283 2284 2285 2286 – – – –
 Long neck welding flanges – – – – – – – – – – – – –
 Threaded flanges with neck – – 2253 – 2254 – – – – – – – –
Dimension Chart of UNI 2278 PN16 Plate Flange
Designation Directions d1 b a f screw D Hole Weight In Kg
Rated
Dia.
External dia.
of the pipe
Nominal Dimensional Tolerance Kilogram
15 20 20,5 +0,5 12 65 14 M 12 95 4 0,67
21,3 22 0,66
20 25 25,5 14 75 14 M 12 105 4 0,83
26,9 27,5 0,82
25 30 30,5 14 85 14 M 12 115 4 1,03
33,7 34 1,01
32 38 38,5 16 100 18 M 16 140 4 1,66
42,4 43 1,63
40 44,5 45 16 110 18 M 16 150 4 1,89
48,3 49 1,85
50 57 58 18 125 18 M 16 165 4 2,51
60,3 61,5 2,46
65 76,1 77 18 145 18 M 16 185 4 3,00
80 88,9 90 20 160 18 M 16 200 8** 3,61
100 108 109 +1,0 22 180 18 M 16 220 8 4,60
114,3 115,5 4,40
125 133 134,5 24 210 18 M 16 250 8 6,19
139,7 141 5,92
150 159 160,5 24 240 22 M 20 285 8 7,63
168,3 170 7,17
175 193,7 195,5 26 270 22 M 20 315 8 9,16
200 219,1 221 26 295 22 M 20 340 12 9,77
250 267 269 32 355 25 M 22 405 12 16,6
273 275 16,0
300 323,9 326 32 410 25 M 22 460 12 19,3
350 355,6 358 36 470 25 M 22 520 16 29,4
368 370,5 27,3
400 406,4 409 +1,5 38 525 30 M 27 580 16 36,5
419 422 33,9
Buy UNI Flange Adapter and UNI 6092 PN10 Uniflanges As Per ASTM A536 At Best Price
UNI 6092 PN10 Blind Flange Dimension

UNI Flanges Supplier in India offers an various Dimensions.

UNI 6092 PN10 Blind Flange Dimensions

Rated Dia. D b a f No. of holes Thread of the screws Weight in KG
15 95 14 65 14 4 M 12 0,71
20 105 16 75 14 1,01
25 115 16 85 14 1,22
32 140 16 100 18 M 16 1,80
40 150 16 110 2,09
50 165 18 125 2,87
65 185 18 145 3,65
80 200 20 160 4,61
100 220 20 180 8 5,65
125 250 22 210 8,12
150 285 22 240 22 M 20 10,5
175 315 24 270 14,1
200 340 24 295 16,5
250 395 26 350 12 24,1
300 445 26 400 12 30,8
350 505 26 460 16 39,6
400 565 26 515 25 16 M 22 49,6
450 615 26 565 25 20 58,6
500 670 28 620 25 20 75,3
Get FF and RF Face UNI 2282 PN16 Flanges With Smooth and Concentric Serrated Finish
UNI 2282 PN16 Flanges Dimensions
UNI 2282 WELD NECK FLANGE RF PN 16
Directions for the designation a b D f h h1 r s Holes Screws Weight*
Rated
Diameter
External diameter
of the pipe
Kg
20 25 75 16 105 14 38 6 4 2,5 4 M 12 1,03
26,9 1,03
40 44,5 110 16 150 18 42 7 6 3 4 M 16 2,10
48,3 2,08
32 38 100 16 140 18 40 6 6 3 4 M 16 1,82
42,4 1,80
80 88,9 160 20 200 18 50 10 8 3,7 8** M 16 4,20
125 133 210 22 250 18 55 12 8 4 8 M 16 6,70
139,7 6,45
200 219,1 295 24 340 22 62 16 10 5 12 M 20 11,1
300 323,9 410 28 460 25 78 16 12 6 12 M 22 21,8
450 457,2 585 32 640 30 85 16 12 7,3 20 M 27 45,4
600 609,6 770 36 840 36 95 18 12 7,3 20 M 33 84,6
800 812,8 950 38 1025 39 105 20 12 9 24 M 36 x 3 109
1000 1016 1170 42 1255 48 120 22 16 12 28 M 39 x 3 175
1400 1420 1590 52 1685 48 145 30 16 16 36 M 45 x 3 337
2000 2020 2230 66 2345 62 180 40 16 21 48 M 56 x 4 727
UNI 2277 PN10 Plate Flange Dimension Chart

UNI Flanges Supplier in India provide accurate Dimension for Flange

Designation Directions d1 b f a Holes D screws Weight in Kg
Rated
Dia.
External dia.
of the pipe
Nominal Dimensional Tolerance Kilogram
450 457,2 460,2 ±5 32 25 565 20 615 M 22 33,3
500 508 511 34 25 620 20 670 M 22 40,3
600 609,6 612,6 36 30 725 20 780 M 27 53,0
15 20 20,5 +0,5 12 14 65 4 95 M 12 0,67
21,3 22 0,66
20 25 25,5 14 14 75 4 105 M 12 0,83
26,9 27,5 0,82
25 30 30,5 14 14 85 4 115 M 12 1,03
33,7 34 1,01
32 38 38,5 16 18 100 4 140 M 16 1,66
42,4 43 1,63
40 44,5 45 16 18 110 4 150 M 16 1,89
48,3 49 1,85
50 57 58 18 18 125 4 165 M 16 2,51
60,3 61,5 2,46
65 76,1 77 18 18 145 4 185 M 16 3,00
80 88,9 90 20 18 160 4 200 M 16 3,61
100 108 109 +1,0 22 18 180 8 220 M 16 4,60
114,3 115,5 4,40
125 133 134,5 24 18 210 8 250 M 16 6,19
139,7 141 5,92
150 159 160,5 24 22 240 8 285 M 20 7,63
168,3 170 7,17
175 193,7 195,5 26 22 270 8 315 M 20 9,16
200 219,1 221 26 22 295 8 340 M 20 10,1
250 267 269 28 22 350 12 395 M 20 13,4
273 275 12,9
300 323,9 326 28 22 400 12 445 M 22 14,8
350 355,6 358 30 22 460 16 505 M 20 22,0
368 370,5 20,4
400 406,4 409 +1,5 32 25 515 16 565 M 22 28,0
419 422 25,9
What Are the Standard Steps in Installing a UNI Flange to a Ductile Iron Pipe?

What Are the Standard Steps in Installing a UNI Flange to a Ductile Iron Pipe?

Dimension Of UNI 2253 PN6 Threaded Flange

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Dimension Of UNI 2253 PN6 Threaded Flange

Flanges Neck Raised face (RF) Screws Weight in kg
(7,85 Kg/dm3)
d1 Rated
Dia.
Thread f d4 h1 k D b d3 Number Thread d2 Kilogram
26,9 20 R 3/4 2 50 24 65 90 14 40 4 M 10 11 0,59
21,3 15 R 1/2 2 40 20 55 80 12 30 4 0,373
33,7 25 R 1 2 60 24 75 100 14 50 4 0,743
76,1 65 R 2 1/2 3 110 32 130 160 14 100 4 M 12 14 1,92
42,4 32 R 1 1/4 2 70 26 90 120 14 60 4 1,05
48,3 40 R 1 1/2 3 80 26 100 130 14 70 4 1,2
60,3 50 R 2 3 90 28 110 140 14 80 4 1,37
139,7 125 R 5 3 178 40 200 240 18 160 8 M 16 18 4,47
88,9 80 R 3 3 128 34 150 190 16 110 4 2,82
114,3 100 R 4 3 148 38 170 210 16 130 4 3,19
165,1 150 R 6 3 202 44 225 265 18 185 8 5,3
UNI Flange and Series 2282/ 1400/ 1300 UNI Flanges Assembly

UNI Flange and Series 2282/ 1400/ 1300 UNI Flanges Assembly

UNI Flange Series 200 Thickness Calculation

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NPS Sch 40 Sch 10 O.Dai. Sch 20 Sch 30 EXT Hvy Sch 80 Sch 120 Sch 140 Sch 60 XX Hvy Sch 100 Sch 160
½ 0.109 0.083 0.84 … … 0.147 0.147 … … … 0.294 … 0.188
¾ 0.113 0.083 1.05 … … 0.154 0.154 … … … 0.308 … 0.219
1 0.133 0.109 1.315 … … 0.179 0.179 … … … 0.358 … 0.25
1 ¼ 0.14 0.109 1.66 … … 0.191 0.191 … … … 0.382 … 0.25
3 ½ 0.226 0.12 4 … … 0.318 0.318 … … … 0.636 … …
4 0.237 0.12 4.5 … … 0.337 0.337 0.438 … … 0.674 … 0.531
5 0.258 0.134 5.563 … … 0.375 0.375 0.5 … … 0.75 … 0.625
6 0.28 0.134 6.625 … … 0.432 0.432 0.562 … … 0.864 … 0.719
26 …. …. 26 …. …. 0.5 …. …. …. …. …. …. ….
30 …. 0.312 30 0.5 0.625 0.5 …. …. …. …. …. …. ….
36 0.75 0.312 36 0.5 0.625 0.5 …. …. …. …. …. …. ….
40 …. …. 40 …. …. 0.5 …. …. …. …. …. …. ….
42 …….. …….. 42 …….. …….. 0.5 …….. …….. …….. …….. …….. …….. ……..
48 …….. …….. 48 …….. …….. 0.5 …….. …….. …….. …….. …….. …….. ……..
UNI PN 40 Blind Flanges Gasket
PS Gasket I.D. Gasket O.D.
Class 150 Class 300 Class 400 Class 600 Class 900
1 1.31 2.625 2.875 2.875 2.875 3.125
10 10.75 13.375 14.25 14.125 15.75 17.125
12 12.75 16.125 16.625 16.50 18.00 19.625
2 1/2 2.88 4.875 5.125 5.125 5.125 6.50
3 3.50 5.375 5.875 5.875 5.875 6.625
4 4.50 6.875 7.125 7.00 7.625 8.125
5 5.56 7.75 8.50 8.375 9.50 9.75
6 6.62 8.75 9.875 9.75 10.50 11.375
1 1/4 1.66 3 3.25 3.25 3.25 3.50
1 1/2 1.91 3.375 3.75 3.75 3.75 3.875
2 2.38 4.125 4.375 4.375 4.375 5.625
8 8.62 11 12.125 12.00 12.625 14.125
Application Of UNI Flanges

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Application Of UNI Flanges

Series 420 Extra Heavy Adapter Flange
Ductile Iron Pipe Nom. Pipe Size APPRO* WT. LBS. Steel Pipe Dimensions
Bolt HOLE DIA. B C A BC Set screws
O.D. (Inches) CATALOG Number CATALOG Number O.D. (Inches) NO. Size
2.50 UFA420-C-2 2in 7.0 UFA420-S-2 2.38 3/4in 2-1/4in 1.12in 6-1/2in 5in 8 1/2in * 1in
3.96 UFA420-C-3 3in 13.0 UFA420-S-3 3.50 7/8in 2-7/16in 1.12in 8-1/4in 6-5/8in 8 1/2in * 1in
4.80 UFA420-C-4 4in 21.0 UFA420-S-4 4.50 7/8in 2-7/16in 1.25in 10in 7-7/8in 8 1/2in * 1in
– – 5in 27.0 UFA420-S-5 5.56 7/8in 2-9/16in 1.38in 11in 9-1/4in 8 5/8in * 1-1/4in
6.90 UFA420-C-6 6in 38.0 UFA420-S-6 6.63 7/8in 2-9/16in 1.44in 12-1/2in 10-5/8in 12 5/8in * 1-1/4in
9.05 UFA420-C-8 8in 57.0 UFA420-S-8 8.63 1in 2-5/8in 1.62in 15in 13in 12 5/8in * 1-1/4in
11.10 UFA420-C-10 10in 74.0 UFA420-S-10 10.75 1-1/8in 2-5/8in 1.88in 17-1/2in 15-1/4in 16 5/8in * 1-1/4in
13.20 UFA420-C-12 12in 104.0 UFA420-S-12 12.75 1-1/4in 3in 2.00in 20-1/2in 17-3/4in 16 5/8in * 1-1/4in
Weekly Delivery Of UNI Flanges in Below Countries

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Export to Continent Shipping Time in Days Port
Kuwait
Kuwait
Asia 10 Shuwaikh
Nigeria
Nigeria
Africa 30 Apapa
Monthly Delivery Of UNI Flanges in Below Countries
Export to Continent Shipping Time in Days Port
Argentina
Argentina
South America 45 Buenos Aires
Colombia
Colombia
South America 45 Barranquilla
Locate Available Material From Stock
Country Name Country Name
Algeria Nigeria
Zambia Ghana
Tunisia South Africa
Kenya Angola
Tanzania Morocco
Egypt Ethiopia