UNI Flange Specification
| Specification | UNI Flange |
|---|---|
| Connection Type | Flange |
| Material | Ductile Iron |
| Bolt Size | 1/2 x 1 inch |
| Outer Diameter | 4-1/2 in |
| Pressure Rating | 200 psi |
| Nominal Size | 4 inch |
| Brand | Vishal Steel |
| Manufacturer Pressure Class | Class 150 (lb) up to 24" Class 300 (lb) up to 20" Class 600 (lb) up to 20" Class 900 (lb) up to 16" Class 1500 (lb) up to 10" Class 2500 (lb) up to 8" |
| Manufacturer of | Forged/ Threaded/ Screwed / Plate |
| Coating | Anti-rust Paint/ Zinc Plated/ Oil Black Paint/ Yellow Transparent/ Cold and Hot Dip Galvanized |
| Flange Test | Hydrostatic testing machine/ UI trasonic flaw detector/ X-ray detector/ Direct-reading Spectrograph/ Magnetic particle detector |
| Supporting Material | Gasket/ Ring Joint/ Flange Bolts |
| Manufacturer Length | NPS 1⁄₂" To NPS 48” |
| Flange Equipment | Pushing Machine/ electric bevelling machine/ Press machine/ Bending machine/ Sand-blasting machine etc |
| Schedule | SCH 5S, SCH 10, SCH 40, SCH 80, SCH 120, SCH 160, SCH 180 To XXS |
| Face Type | RTJ/ FF/ RF/ lap joint/ Male & Female / Tongue & Groove. |
| Production Technique | Forged/ Heat treated and machined |
| Forging Methods | Casting/ Forging/ Rolling/ Cutting |
| Application | Bitumen upgraders Heavy oil refineries. Nuclear power (mostly seamless). Petrochemicals and acids. |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
EN 1092-1 PN16 UNI Flange Price
| Nominal Diameter | Nominal pipe size in mm | Pitch Circle Diameter In mm | Thread holes | Standard | Pressure | Price In INR (India) Per Piece |
| DN 80 | 88,9 | 160 | 8 x 18 mm Ø | UNI Series 1300 | PN16 | 2980.00 |
| DN 100 | 108 | 180 | 8 x 18 mm Ø | - | - | 3573.00 |
| DN 100 | 114,3 | 180 | 8 x 18 mm Ø | - | - | 4292.00 |
| DN 125 | 133 | 210 | 8 x 18 mm Ø | - | - | 4979.00 |
| DN 125 | 139,7 | 210 | 8 x 18 mm Ø | - | - | 5259.00 |
| DN 150 | 159 | 240 | 8 x 22 mm Ø | - | - | 5785.00 |
| DN 150 | 168,3 | 240 | 8 x 22 mm Ø | - | - | 6205.00 |
| DN 200 | 219,1 | 295 | 12 x 22 mm Ø | UNI Series 1300 | PN 16 | 6988.00 |
Types Of Italian Standard Flange
Uni Flanges For Ductile Iron Pipe
Uni Flanges For Steel Pipe
Uni Flanges 1300
Uni Flanges 900
Uni Flanges 400
Uni Flanges Series 1400
Uni Flanges Series 400
4 Inch Uni Flanges
Flanges Uni En 1092-2
Flange Uni En 1092-1
Flange Uni En 1092-1 Pn10
Flange Uni En 1092-1 Pn16
Flange Uni En 1092-1 Pn 100
Uni Flange Adapter
Uni Slip On Flange
UNI Flange Standard
Italian Standard Flange
Italian Flange
PN6 UNI Flanges
PN610 UNI Flanges
PN16 UNI Flanges
PN640 UNI Flanges
Ductile Iron Uni Flanges
6 Inch Uni Flanges
Test Certificates
UNI Flange Dimensions
| Directions for the designation | D1 | A | B | D | F | Holes | Screws | Weight in Kilogram | ||
|---|---|---|---|---|---|---|---|---|---|---|
| Rated Dia | External Dia of the pipe | Nominal | Tolerance | |||||||
| 15 | 20 | 20,5 | +0,5 | 55 | 10 | 80 | 11 | 4 | M 10 | 0,34 |
| 21,3 | 22 | 0,33 | ||||||||
| 20 | 25 | 25,5 | 65 | 12 | 90 | 11 | 4 | M 10 | 0,51 | |
| 26,9 | 27,5 | 0,50 | ||||||||
| 25 | 30 | 30,5 | 75 | 12 | 100 | 11 | 4 | M 10 | 0,63 | |
| 33,7 | 34 | 0,61 | ||||||||
| 32 | 38 | 38,5 | 90 | 14 | 120 | 14 | 4 | M 12 | 1,09 | |
| 42,4 | 43 | 1,05 | ||||||||
| 40 | 44,5 | 45 | 100 | 14 | 130 | 14 | 4 | M 12 | 1,26 | |
| 48,3 | 49 | 1,23 | ||||||||
| 50 | 57 | 58 | 110 | 14 | 140 | 14 | 4 | M 12 | 1,38 | |
| 60,3 | 61,5 | 1,35 | ||||||||
| 65 | 76,1 | 77 | 130 | 14 | 160 | 14 | 4 | M 12 | 1,68 | |
| 80 | 88,9 | 90 | 150 | 16 | 190 | 18 | 4 | M 16 | 2,63 | |
| 100 | 108 | 109 | +1,0 | 170 | 16 | 210 | 18 | 4*** | M 16 | 3,05 |
| 114,3 | 115,5 | 2,92 | ||||||||
| 125 | 133 | 134,5 | 200 | 18 | 240 | 18 | 8 | M 16 | 4,11 | |
| 139,7 | 141 | 3,90 | ||||||||
| 150 | 159 | 160,5 | 225 | 20 | 265 | 18 | 8 | M 16 | 5,16 | |
| 168,3 | 170 | 4,78 | ||||||||
| 175 | 193,7 | 195,5 | 255 | 22 | 295 | 18 | 8 | M 16 | 6,27 | |
| 200 | 219,1 | 221 | 280 | 22 | 320 | 18 | 8 | M 16 | 6,91 | |
| 250 | 267 | 269 | 335 | 24 | 375 | 18 | 12 | M 16 | 9,53 | |
| 273 | 275 | 9,04 | ||||||||
| 300 | 323,9 | 326 | 395 | 24 | 440 | 22 | 12 | M 20 | 12,1 | |
| 350 | 355,6 | 358 | 445 | 26 | 490 | 22 | 12 | M 20 | 17,0 | |
| 368 | 370,5 | 15,6 | ||||||||
| 400 | 406,4 | 409 | +1,5 | 495 | 28 | 540 | 22 | 16 | M 20 | 20,1 |
| 419 | 422 | 18,3 | ||||||||
| 450 | 457,2 | 460,2 | ±5 | 550 | 28 | 595 | 22 | 16 | M 20 | 25,8 |
| 500 | 508 | 511 | 600 | 30 | 645 | 22 | 20 | M 20 | 30,0 | |
| 600 | 609,6 | 612,6 | 705 | 30 | 755 | 25 | 20 | M 22 | 37,9 | |
| 700 | 711,2 | 714,2 | 810 | 32 | 860 | 25 | 24 | M 22 | 47,9 | |
| 800 | 812,8 | 815,8 | 920 | 34 | 975 | 30 | 24 | M 27 | 62,9 | |
| 900 | 914,4 | 917,4 | 1020 | 36 | 1075 | 30 | 24 | M 27 | 74,6 | |
| 1000 | 1016 | 1019 | 1120 | 36 | 1175 | 30 | 28 | M 27 | 81,9 | |
UNI 2277 PN10 Plate Flange Dimensions
| Designation Directions | (D1) | (A) | (B) | (D) | (F) | No. Holes | screws | Weight in KG | ||
| Rated Diameter | External Diameter of the pipe | Nominal | Tolerance | Kg | ||||||
| 15 | 20 | 20,5 | +0,5 | 65 | 12 | 95 | 14 | 4 | M 12 | 0,67 |
| 21,3 | 22 | 0,66 | ||||||||
| 20 | 25 | 25,5 | 75 | 14 | 105 | 14 | 4 | M 12 | 0,83 | |
| 26,9 | 27,5 | 0,82 | ||||||||
| 25 | 30 | 30,5 | 85 | 14 | 115 | 14 | 4 | M 12 | 1,03 | |
| 33,7 | 34 | 1,01 | ||||||||
| 32 | 38 | 38,5 | 100 | 16 | 140 | 18 | 4 | M 16 | 1,66 | |
| 42,4 | 43 | 1,63 | ||||||||
| 40 | 44,5 | 45 | 110 | 16 | 150 | 18 | 4 | M 16 | 1,89 | |
| 48,3 | 49 | 1,85 | ||||||||
| 50 | 57 | 58 | 125 | 18 | 165 | 18 | 4 | M 16 | 2,51 | |
| 60,3 | 61,5 | 2,46 | ||||||||
| 65 | 76,1 | 77 | 145 | 18 | 185 | 18 | 4 | M 16 | 3,00 | |
| 80 | 88,9 | 90 | 160 | 20 | 200 | 18 | 4 | M 16 | 3,61 | |
| 100 | 108 | 109 | +1,0 | 180 | 22 | 220 | 18 | 8 | M 16 | 4,60 |
| 114,3 | 115,5 | 4,40 | ||||||||
| 125 | 133 | 134,5 | 210 | 24 | 250 | 18 | 8 | M 16 | 6,19 | |
| 139,7 | 141 | 5,92 | ||||||||
| 150 | 159 | 160,5 | 240 | 24 | 285 | 22 | 8 | M 20 | 7,63 | |
| 168,3 | 170 | 7,17 | ||||||||
| 175 | 193,7 | 195,5 | 270 | 26 | 315 | 22 | 8 | M 20 | 9,16 | |
| 200 | 219,1 | 221 | 295 | 26 | 340 | 22 | 8 | M 20 | 10,1 | |
| 250 | 267 | 269 | 350 | 28 | 395 | 22 | 12 | M 20 | 13,4 | |
| 273 | 275 | 12,9 | ||||||||
| 300 | 323,9 | 326 | 400 | 28 | 445 | 22 | 12 | M 22 | 14,8 | |
| 350 | 355,6 | 358 | 460 | 30 | 505 | 22 | 16 | M 20 | 22,0 | |
| 368 | 370,5 | 20,4 | ||||||||
| 400 | 406,4 | 409 | +1,5 | 515 | 32 | 565 | 25 | 16 | M 22 | 28,0 |
| 419 | 422 | 25,9 | ||||||||
| 450 | 457,2 | 460,2 | ±5 | 565 | 32 | 615 | 25 | 20 | M 22 | 33,3 |
| 500 | 508 | 511 | 620 | 34 | 670 | 25 | 20 | M 22 | 40,3 | |
| 600 | 609,6 | 612,6 | 725 | 36 | 780 | 30 | 20 | M 27 | 53,0 | |
UNI 2278 PN16 Plate Flange Dimensions

| Designation Directions | (D1) | (A) | (B) | (D) | (F) | Number Hole | screw | Weight In KG | ||
| Rated Diameter | External Diameter of the pipe | Nominal | Tolerance | Kg | ||||||
| 15 | 20 | 20,5 | +0,5 | 65 | 12 | 95 | 14 | 4 | M 12 | 0,67 |
| 21,3 | 22 | 0,66 | ||||||||
| 20 | 25 | 25,5 | 75 | 14 | 105 | 14 | 4 | M 12 | 0,83 | |
| 26,9 | 27,5 | 0,82 | ||||||||
| 25 | 30 | 30,5 | 85 | 14 | 115 | 14 | 4 | M 12 | 1,03 | |
| 33,7 | 34 | 1,01 | ||||||||
| 32 | 38 | 38,5 | 100 | 16 | 140 | 18 | 4 | M 16 | 1,66 | |
| 42,4 | 43 | 1,63 | ||||||||
| 40 | 44,5 | 45 | 110 | 16 | 150 | 18 | 4 | M 16 | 1,89 | |
| 48,3 | 49 | 1,85 | ||||||||
| 50 | 57 | 58 | 125 | 18 | 165 | 18 | 4 | M 16 | 2,51 | |
| 60,3 | 61,5 | 2,46 | ||||||||
| 65 | 76,1 | 77 | 145 | 18 | 185 | 18 | 4 | M 16 | 3,00 | |
| 80 | 88,9 | 90 | 160 | 20 | 200 | 18 | 8** | M 16 | 3,61 | |
| 100 | 108 | 109 | +1,0 | 180 | 22 | 220 | 18 | 8 | M 16 | 4,60 |
| 114,3 | 115,5 | 4,40 | ||||||||
| 125 | 133 | 134,5 | 210 | 24 | 250 | 18 | 8 | M 16 | 6,19 | |
| 139,7 | 141 | 5,92 | ||||||||
| 150 | 159 | 160,5 | 240 | 24 | 285 | 22 | 8 | M 20 | 7,63 | |
| 168,3 | 170 | 7,17 | ||||||||
| 175 | 193,7 | 195,5 | 270 | 26 | 315 | 22 | 8 | M 20 | 9,16 | |
| 200 | 219,1 | 221 | 295 | 26 | 340 | 22 | 12 | M 20 | 9,77 | |
| 250 | 267 | 269 | 355 | 32 | 405 | 25 | 12 | M 22 | 16,6 | |
| 273 | 275 | 16,0 | ||||||||
| 300 | 323,9 | 326 | 410 | 32 | 460 | 25 | 12 | M 22 | 19,3 | |
| 350 | 355,6 | 358 | 470 | 36 | 520 | 25 | 16 | M 22 | 29,4 | |
| 368 | 370,5 | 27,3 | ||||||||
| 400 | 406,4 | 409 | +1,5 | 525 | 38 | 580 | 30 | 16 | M 27 | 36,5 |
| 419 | 422 | 33,9 | ||||||||
UNI 2281 PN10 Welding Neck Flange Dimensions
| Designation Directions | (D1) | (A) | (B) | (D) | (F) | (H) | (H1) | (M) | (R) | (S) | No. Hole | Screw | Weight In KG | |
| Rated Diameter | External Diameter of the pipe | Kilogram | ||||||||||||
| 15 | 20 | 21 | 65 | 14 | 95 | 14 | 35 | 6 | 30 | 4 | 2,5 | 4 | M 12 | 0,73 |
| 21,3 | 22,5 | 32 | 0,73 | |||||||||||
| 20 | 25 | 26 | 75 | 16 | 105 | 14 | 38 | 6 | 38 | 4 | 2,5 | 4 | M 12 | 1,03 |
| 26,9 | 28 | 40 | 1,03 | |||||||||||
| 25 | 30 | 31 | 85 | 16 | 115 | 14 | 38 | 6 | 42 | 4 | 2,8 | 4 | M 12 | 1,24 |
| 33,7 | 34,5 | 45 | 1,23 | |||||||||||
| 32 | 38 | 39 | 100 | 16 | 140 | 18 | 40 | 6 | 52 | 6 | 3 | 4 | M 16 | 1,82 |
| 42,4 | 43,5 | 56 | 1,80 | |||||||||||
| 40 | 44,5 | 45,5 | 110 | 16 | 150 | 18 | 42 | 7 | 60 | 6 | 3 | 4 | M 16 | 2,10 |
| 48,3 | 49,5 | 64 | 2,08 | |||||||||||
| 50 | 57 | 58 | 125 | 18 | 165 | 18 | 45 | 8 | 72 | 6 | 3,5 | 4 | M 16 | 2,81 |
| 60,3 | 61,5 | 75 | 2,78 | |||||||||||
| 65 | 76,1 | 77 | 145 | 18 | 185 | 18 | 45 | 10 | 90 | 6 | 3,5 | 4 | M 16 | 3,40 |
| 80 | 88,9 | 90 | 160 | 20 | 200 | 18 | 50 | 10 | 105 | 8 | 3,7 | 8** | M 16 | 4,20 |
| 100 | 108 | 109 | 180 | 20 | 220 | 18 | 52 | 12 | 125 | 8 | 3,7 | 8 | M 16 | 4,90 |
| 114,3 | 115,5 | 131 | 4,75 | |||||||||||
| 125 | 133 | 134 | 210 | 22 | 250 | 18 | 55 | 12 | 150 | 8 | 4 | 8 | M 16 | 6,70 |
| 139,7 | 141 | 156 | 6,45 | |||||||||||
| 150 | 159 | 161 | 240 | 22 | 285 | 22 | 55 | 12 | 175 | 10 | 5 | 8 | M 20 | 8,30 |
| 168,3 | 170,5 | 184 | 8,00 | |||||||||||
| 175 | 193,7 | 195,5 | 270 | 24 | 315 | 22 | 60 | 12 | 210 | 10 | 5 | 8 | M 20 | 10,3 |
| 200 | 219,1 | 221 | 295 | 24 | 340 | 22 | 62 | 16 | 235 | 10 | 5 | 8 | M 20 | 11,4 |
| 250 | 267 | 269 | 350 | 26 | 395 | 22 | 68 | 16 | 285 | 12 | 5,5 | 12 | M 20 | 15,6 |
| 273 | 275 | 292 | 15,2 | |||||||||||
| 300 | 323,9 | 326 | 400 | 26 | 445 | 22 | 68 | 16 | 344 | 12 | 6 | 12 | M 20 | 18,0 |
| 350 | 355,6 | 357,5 | 460 | 26 | 505 | 22 | 68 | 16 | 385 | 12 | 6,4 | 16 | M 20 | 24,5 |
| 368 | 370 | 22,5 | ||||||||||||
| 400 | 406,4 | 408,5 | 515 | 26 | 565 | 25 | 72 | 16 | 440 | 12 | 7 | 16 | M 22 | 30,2 |
| 419 | 421 | 27,8 | ||||||||||||
| 450 | 457,2 | 459 | 565 | 26 | 615 | 25 | 72 | 16 | 478 | 12 | 7,3 | 20 | M 22 | 32,3 |
| 500 | 508 | 510 | 620 | 28 | 670 | 25 | 75 | 16 | 542 | 12 | 7,3 | 20 | M 22 | 40,4 |
| 600 | 609,6 | 611,5 | 725 | 28 | 780 | 30 | 80 | 18 | 642 | 12 | 7,3 | 20 | M 27 | 50,0 |
| 700 | 711,2 | 715 | 840 | 30 | 895 | 30 | 80 | 18 | 745 | 12 | 9 | 24 | M 27 | 66,4 |
| 800 | 812,8 | 817 | 950 | 32 | 1015 | 33 | 90 | 18 | 850 | 12 | 9 | 24 | M 30 | 89,3 |
| 900 | 914,4 | 918 | 1050 | 34 | 1115 | 33 | 95 | 20 | 950 | 12 | 9 | 28 | M 30 | 104 |
| 1000 | 1016 | 1020 | 1160 | 34 | 1230 | 36 | 95 | 20 | 1052 | 16 | 9 | 28 | M 33 | 121 |
| 1200 | 1220 | 1224 | 1380 | 38 | 1455 | 39 | 115 | 25 | 1255 | 16 | 10 | 32 | M 36 x 3 | 180 |
| 1400 | 1420 | 1424 | 1590 | 42 | 1675 | 42 | 120 | 25 | 1460 | 16 | 11 | 36 | M 39 x 3 | 248 |
| 1600 | 1620 | 1624 | 1820 | 46 | 1915 | 48 | 130 | 25 | 1665 | 16 | 12 | 40 | M 45 x 3 | 352 |
| 1800 | 1820 | 1824 | 2020 | 50 | 2115 | 48 | 140 | 30 | 1868 | 16 | 13 | 44 | M 45 x 3 | 433 |
| 2000 | 2020 | 2024 | 2230 | 54 | 2325 | 48 | 150 | 30 | 2072 | 16 | 14 | 48 | M 45 x 3 | 543 |
UNI 2282 PN16 Welding Neck Flange Dimensions
| Designation Directions | (D1) | (A) | (B) | (D) | (F) | h | h1 | m | r | s | Hole | Screw | Weight In KG | |
| Rated Diameter | External Diameter of the pipe | Kilogram | ||||||||||||
| 15 | 20 | 21 | 65 | 14 | 95 | 14 | 35 | 6 | 30 | 4 | 2,5 | 4 | M 12 | 0,73 |
| 21,3 | 22,5 | 32 | 0,73 | |||||||||||
| 20 | 25 | 26 | 75 | 16 | 105 | 14 | 38 | 6 | 38 | 4 | 2,5 | 4 | M 12 | 1,03 |
| 26,9 | 28 | 40 | 1,03 | |||||||||||
| 25 | 30 | 31 | 85 | 16 | 115 | 14 | 38 | 6 | 42 | 4 | 2,8 | 4 | M 12 | 1,24 |
| 33,7 | 34,5 | 45 | 1,23 | |||||||||||
| 32 | 38 | 39 | 100 | 16 | 140 | 18 | 40 | 6 | 52 | 6 | 3 | 4 | M 16 | 1,82 |
| 42,4 | 43,5 | 56 | 1,80 | |||||||||||
| 40 | 44,5 | 45,5 | 110 | 16 | 150 | 18 | 42 | 7 | 60 | 6 | 3 | 4 | M 16 | 2,10 |
| 48,3 | 49,5 | 64 | 2,08 | |||||||||||
| 50 | 57 | 58 | 125 | 18 | 165 | 18 | 45 | 8 | 72 | 6 | 3,5 | 4 | M 16 | 2,81 |
| 60,3 | 61,5 | 75 | 2,78 | |||||||||||
| 65 | 76,1 | 77 | 145 | 18 | 185 | 18 | 45 | 10 | 90 | 6 | 3,5 | 4 | M 16 | 3,40 |
| 80 | 88,9 | 90 | 160 | 20 | 200 | 18 | 50 | 10 | 105 | 8 | 3,7 | 8** | M 16 | 4,20 |
| 100 | 108 | 109 | 180 | 20 | 220 | 18 | 52 | 12 | 125 | 8 | 3,7 | 8 | M 16 | 4,90 |
| 114,3 | 115,5 | 131 | 4,75 | |||||||||||
| 125 | 133 | 134 | 210 | 22 | 250 | 18 | 55 | 12 | 150 | 8 | 4 | 8 | M 16 | 6,70 |
| 139,7 | 141 | 156 | 6,45 | |||||||||||
| 150 | 159 | 161 | 240 | 22 | 285 | 22 | 55 | 12 | 175 | 10 | 5 | 8 | M 20 | 8,30 |
| 168,3 | 170,5 | 184 | 8,00 | |||||||||||
| 175 | 193,7 | 195,5 | 270 | 24 | 315 | 22 | 60 | 12 | 210 | 10 | 5 | 8 | M 20 | 10,3 |
| 200 | 219,1 | 221 | 295 | 24 | 340 | 22 | 62 | 16 | 235 | 10 | 5 | 12 | M 20 | 11,1 |
| 250 | 267 | 269 | 355 | 26 | 405 | 25 | 70 | 16 | 285 | 12 | 5,5 | 12 | M 22 | 16,7 |
| 273 | 275 | 292 | 16,3 | |||||||||||
| 300 | 323,9 | 326 | 410 | 28 | 460 | 25 | 78 | 16 | 344 | 12 | 6 | 12 | M 22 | 21,8 |
| 350 | 355,6 | 357,5 | 470 | 30 | 520 | 25 | 82 | 16 | 390 | 12 | 6,4 | 16 | M 22 | 31,7 |
| 368 | 370 | 29,2 | ||||||||||||
| 400 | 406,4 | 408,5 | 525 | 32 | 580 | 30 | 85 | 16 | 445 | 12 | 7 | 16 | M 27 | 38,3 |
| 419 | 421 | 37,0 | ||||||||||||
| 450 | 457,2 | 459 | 585 | 32 | 640 | 30 | 85 | 16 | 485 | 12 | 7,3 | 20 | M 27 | 45,4 |
| 500 | 508 | 510 | 650 | 34 | 715 | 33 | 90 | 16 | 548 | 12 | 7,3 | 20 | M 30 | 61,1 |
| 600 | 609,6 | 611,5 | 770 | 36 | 840 | 36 | 95 | 18 | 652 | 12 | 7,3 | 20 | M 33 | 84,6 |
| 700 | 711,2 | 715 | 840 | 36 | 910 | 39 | 100 | 18 | 755 | 12 | 9 | 24 | M 33 | 87,4 |
| 800 | 812,8 | 817 | 950 | 38 | 1025 | 39 | 105 | 20 | 855 | 12 | 9 | 24 | M 36 x 3 | 109 |
| 900 | 914,4 | 918 | 1050 | 40 | 1125 | 42 | 110 | 20 | 955 | 12 | 10 | 28 | M 36 x 3 | 129 |
| 1000 | 1016 | 1020 | 1170 | 42 | 1255 | 48 | 120 | 22 | 1058 | 16 | 12 | 28 | M 39 x 3 | 175 |
| 1200 | 1220 | 1224 | 1390 | 48 | 1485 | 48 | 130 | 30 | 1262 | 16 | 14 | 32 | M 45 x 3 | 257 |
| 1400 | 1420 | 1424 | 1590 | 52 | 1685 | 48 | 145 | 30 | 1465 | 16 | 16 | 36 | M 45 x 3 | 337 |
| 1600 | 1620 | 1624 | 1820 | 58 | 1930 | 56 | 160 | 35 | 1668 | 16 | 17 | 40 | M 52 x 3 | 481 |
| 1800 | 1820 | 1824 | 2020 | 62 | 2130 | 56 | 170 | 35 | 1870 | 16 | 19 | 44 | M 52 x 3 | 591 |
| 2000 | 2020 | 2024 | 2230 | 66 | 2345 | 62 | 180 | 40 | 2072 | 16 | 21 | 48 | M 56 x 4 | 727 |
UNI 2283 PN25 Welding Neck Flange Dimensions
| Designation Directions | (D1) | (A) | (B) | (D) | (F) | h | h1 | m | r | s | Hole | Screw | Weight In KG | |
| Rated Diameter | External Diameter of the pipe | Kilogram | ||||||||||||
| 15 | 20 | 21 | 65 | 16 | 95 | 14 | 38 | 6 | 30 | 4 | 2,5 | 4 | M 12 | 0,83 |
| 21,3 | 22,5 | 32 | 0,83 | |||||||||||
| 20 | 25 | 26 | 75 | 18 | 105 | 14 | 40 | 6 | 38 | 4 | 2,5 | 4 | M 12 | 1,15 |
| 26,9 | 28 | 40 | 1,15 | |||||||||||
| 25 | 30 | 31 | 85 | 18 | 115 | 14 | 40 | 6 | 42 | 4 | 2,8 | 4 | M 12 | 1,39 |
| 33,7 | 34,5 | 46 | 1,38 | |||||||||||
| 32 | 38 | 39 | 100 | 18 | 140 | 18 | 42 | 6 | 52 | 6 | 3 | 4 | M 16 | 2,03 |
| 42,4 | 43,5 | 56 | 2,01 | |||||||||||
| 40 | 44,5 | 45,5 | 110 | 18 | 150 | 18 | 45 | 7 | 60 | 6 | 3 | 4 | M 16 | 2,35 |
| 48,3 | 49,5 | 64 | 2,33 | |||||||||||
| 50 | 57 | 58 | 125 | 20 | 165 | 18 | 48 | 8 | 72 | 6 | 3,5 | 4 | M 16 | 3,11 |
| 60,3 | 61,5 | 75 | 3.08 | |||||||||||
| 65 | 76,1 | 77 | 145 | 22 | 185 | 18 | 52 | 10 | 90 | 6 | 3,5 | 8 | M 16 | 3,95 |
| 80 | 88,9 | 90 | 160 | 24 | 200 | 18 | 58 | 12 | 105 | 8 | 3,7 | 8 | M 16 | 4,98 |
| 100 | 108 | 109 | 190 | 24 | 235 | 22 | 65 | 12 | 128 | 8 | 3,7 | 8 | M 20 | 6,85 |
| 114,3 | 115,5 | 134 | 6,70 | |||||||||||
| 125 | 133 | 134 | 220 | 26 | 270 | 25 | 68 | 12 | 155 | 8 | 4 | 8 | M 22 | 9,42 |
| 139,7 | 141 | 162 | 9,20 | |||||||||||
| 150 | 159 | 161 | 250 | 28 | 300 | 25 | 75 | 12 | 182 | 10 | 5 | 8 | M 22 | 12,4 |
| 168,3 | 170,5 | 192 | 12,0 | |||||||||||
| 175 | 193,7 | 195,5 | 280 | 28 | 330 | 25 | 75 | 15 | 218 | 10 | 5 | 12 | M 22 | 13,6 |
| 200 | 219,1 | 221 | 310 | 30 | 360 | 25 | 80 | 16 | 244 | 10 | 5 | 12 | M 22 | 16,8 |
| 250 | 267 | 269 | 370 | 32 | 425 | 30 | 88 | 18 | 292 | 12 | 5,5 | 12 | M 27 | 23,8 |
| 273 | 275 | 298 | 23,3 | |||||||||||
| 300 | 323,9 | 326 | 430 | 34 | 485 | 30 | 92 | 18 | 352 | 12 | 6 | 16 | M 27 | 30,5 |
| 350 | 355,6 | 357,5 | 490 | 38 | 555 | 33 | 100 | 20 | 398 | 12 | 6,4 | 16 | M 30 | 47,6 |
| 368 | 370 | 44,5 | ||||||||||||
| 400 | 406,4 | 408,5 | 550 | 40 | 620 | 36 | 110 | 20 | 452 | 12 | 7,3 | 16 | M 33 | 62,1 |
| 419 | 421 | 58,3 | ||||||||||||
| 450 | 457,2 | 459 | 600 | 40 | 670 | 36 | 115 | 20 | 492 | 12 | 8 | 20 | M 33 | 67,8 |
| 500 | 508 | 510 | 660 | 44 | 730 | 36 | 125 | 20 | 558 | 12 | 8 | 20 | M 33 | 88,8 |
| 600 | 609,6 | 611,5 | 770 | 46 | 845 | 39 | 125 | 20 | 660 | 12 | 8 | 20 | M 36 x 3 | 114 |
| 700 | 711,2 | 715 | 875 | 46 | 960 | 42 | 125 | 20 | 760 | 12 | 10 | 24 | M 39 x 3 | 138 |
| 800 | 812,8 | 817 | 990 | 50 | 1085 | 48 | 135 | 22 | 865 | 12 | 11 | 24 | M 45 x 3 | 185 |
| 900 | 914,4 | 918 | 1090 | 54 | 1185 | 48 | 145 | 24 | 968 | 12 | 12 | 28 | M 45 x 3 | 224 |
| 1000 | 1016 | 1020 | 1210 | 58 | 1320 | 56 | 155 | 24 | 1070 | 16 | 13 | 28 | M 52 x 3 | 293 |
UNI 2253 PN6 Threaded Flange Dimensions
| PN6 Threaded Flanges | Weld Neck | RF (Raised face) | Screws | Weight in KG | - | - | |||||||
| Rated Diameter | (D1) | Thread | (D) | (B) | (K) | (H1) | (D3) | (D4) | (F) | Number Holes | Thread | D2 | KilogramKilogramKilogram |
| 15 | 21,3 | R 1/2 | 80 | 12 | 55 | 20 | 30 | 40 | 2 | 4 | M 10 | 11 | 0,373 |
| 20 | 26,9 | R 3/4 | 90 | 14 | 65 | 24 | 40 | 50 | 2 | 4 | M 10 | 11 | 0,59 |
| 25 | 33,7 | R 1 | 100 | 14 | 75 | 24 | 50 | 60 | 2 | 4 | M 10 | 11 | 0,743 |
| 32 | 42,4 | R 1 1/4 | 120 | 14 | 90 | 26 | 60 | 70 | 2 | 4 | M 12 | 14 | 1,05 |
| 40 | 48,3 | R 1 1/2 | 130 | 14 | 100 | 26 | 70 | 80 | 3 | 4 | M 12 | 14 | 1,2 |
| 50 | 60,3 | R 2 | 140 | 14 | 110 | 28 | 80 | 90 | 3 | 4 | M 12 | 14 | 1,37 |
| 65 | 76,1 | R 2 1/2 | 160 | 14 | 130 | 32 | 100 | 110 | 3 | 4 | M 12 | 14 | 1,92 |
| 80 | 88,9 | R 3 | 190 | 16 | 150 | 34 | 110 | 128 | 3 | 4 | M 16 | 18 | 2,82 |
| 100 | 114,3 | R 4 | 210 | 16 | 170 | 38 | 130 | 148 | 3 | 4 | M 16 | 18 | 3,19 |
| 125 | 139,7 | R 5 | 240 | 18 | 200 | 40 | 160 | 178 | 3 | 8 | M 16 | 18 | 4,47 |
| 150 | 165,1 | R 6 | 265 | 18 | 225 | 44 | 185 | 202 | 3 | 8 | M 16 | 18 | 5,3 |
UNI 2254 PN16 Threaded Flange Dimensions
| Rated Diameter | D1 | PN16 Threaded Flanges | Weld Neck | RF (Raised face) | Screws | Weight in Kilogram (7,85 Kg/dm3) | |||||||
| Thread | (D) | (B) | (K) | (H1) | (D3) | (D4) | (F) | Number Of Holes | Thread | D2 | KG | ||
| 15 | 21,3 | R 1/2 | 95 | 14 | 65 | 20 | 35 | 45 | 2 | 4 | M 12 | 14 | 0,613 |
| 20 | 26,9 | R 3/4 | 105 | 16 | 75 | 24 | 45 | 58 | 2 | 4 | M 12 | 14 | 0,91 |
| 25 | 33,7 | R 1 | 115 | 16 | 85 | 24 | 52 | 68 | 2 | 4 | M 12 | 14 | 1,1 |
| 32 | 42,4 | R 1 1/4 | 140 | 16 | 100 | 26 | 60 | 78 | 2 | 4 | M 16 | 18 | 1,6 |
| 40 | 48,3 | R 1 1/2 | 150 | 16 | 110 | 26 | 70 | 88 | 3 | 4 | M 16 | 18 | 1,78 |
| 50 | 60,3 | R 2 | 165 | 18 | 125 | 28 | 85 | 102 | 3 | 4 | M 16 | 18 | 2,43 |
| 65 | 76,1 | R 2 1/2 | 185 | 18 | 145 | 32 | 105 | 122 | 3 | 4 | M 16 | 18 | 3,18 |
| 80 | 88,9 | R 3 | 200 | 20 | 160 | 34 | 118 | 138 | 3 | 8 | M 16 | 18 | 4,12 |
| 100 | 114,3 | R 4 | 220 | 20 | 180 | 38 | 140 | 158 | 3 | 8 | M 16 | 18 | 4,47 |
| 125 | 139,7 | R 5 | 250 | 22 | 210 | 40 | 168 | 188 | 3 | 8 | M 16 | 18 | 6,13 |
| 150 | 165,1 | R 6 | 285 | 22 | 240 | 44 | 195 | 212 | 3 | 8 | M 20 | 22 | 7,92 |
UNI 6092 PN10 Blind Flange Dimensions
| Rated Diameter | (A) | (B) | (D) | (F) | Number of holes | Thread of the screws | Weight in Kilogram |
| 15 | 65 | 14 | 95 | 14 | 4 | M 12 | 0,71 |
| 20 | 75 | 16 | 105 | 14 | 4 | M 12 | 1,01 |
| 25 | 85 | 16 | 115 | 14 | 4 | M 12 | 1,22 |
| 32 | 100 | 16 | 140 | 18 | 4 | M 16 | 1,80 |
| 40 | 110 | 16 | 150 | 18 | 4 | M 16 | 2,09 |
| 50 | 125 | 18 | 165 | 18 | 4 | M 16 | 2,87 |
| 65 | 145 | 18 | 185 | 18 | 4 | M 16 | 3,65 |
| 80 | 160 | 20 | 200 | 18 | 4 | M 16 | 4,61 |
| 100 | 180 | 20 | 220 | 18 | 8 | M 16 | 5,65 |
| 125 | 210 | 22 | 250 | 18 | 8 | M 16 | 8,12 |
| 150 | 240 | 22 | 285 | 22 | 8 | M 20 | 10,5 |
| 175 | 270 | 24 | 315 | 22 | 8 | M 20 | 14,1 |
| 200 | 295 | 24 | 340 | 22 | 8 | M 20 | 16,5 |
| 250 | 350 | 26 | 395 | 22 | 12 | M 20 | 24,1 |
| 300 | 400 | 26 | 445 | 22 | 12 | M 20 | 30,8 |
| 350 | 460 | 26 | 505 | 22 | 16 | M 20 | 39,6 |
| 400 | 515 | 26 | 565 | 25 | 16 | M 22 | 49,6 |
| 450 | 565 | 26 | 615 | 25 | 20 | M 22 | 58,6 |
| 500 | 620 | 28 | 670 | 25 | 20 | M 22 | 75,3 |
UNI 6093 PN16 Blind Flange Dimensions
| Rated Diameter | (A) | (B) | (D) | (F) | Number of holes | Thread of the screws | Weight in Kilogram |
| 15 | 65 | 14 | 95 | 14 | 4 | M 12 | 0,71 |
| 20 | 75 | 16 | 105 | 14 | 4 | M 12 | 1,01 |
| 25 | 85 | 16 | 115 | 14 | 4 | M 12 | 1,22 |
| 32 | 100 | 16 | 140 | 18 | 4 | M 16 | 1,80 |
| 40 | 110 | 16 | 150 | 18 | 4 | M 16 | 2,09 |
| 50 | 125 | 18 | 165 | 18 | 4 | M 16 | 2,87 |
| 65 | 145 | 18 | 185 | 18 | 4 | M 16 | 3,65 |
| 80 | 160 | 20 | 200 | 18 | 8** | M 16 | 4,61 |
| 100 | 180 | 20 | 220 | 18 | 8 | M 16 | 5,65 |
| 125 | 210 | 22 | 250 | 18 | 8 | M 16 | 8,12 |
| 150 | 240 | 22 | 285 | 22 | 8 | M 20 | 10,5 |
| 175 | 270 | 24 | 315 | 22 | 8 | M 20 | 14,1 |
| 200 | 295 | 24 | 340 | 22 | 12 | M 20 | 16,2 |
| 250 | 355 | 26 | 405 | 25 | 12 | M 22 | 25,1 |
| 300 | 410 | 28 | 460 | 25 | 12 | M 22 | 35,2 |
| 350 | 470 | 30 | 520 | 25 | 16 | M 22 | 48,2 |
| 400 | 525 | 32 | 580 | 30 | 16 | M 27 | 63,5 |
| 450 | 585 | 32 | 640 | 30 | 20 | M 27 | 77,2 |
| 500 | 650 | 34 | 715 | 33 | 20 | M 30 | 102 |
UNI 2223 Flange Dimensions
UNI 2278 Flange Dimensions
UNI Flange Pressure Rating
How To Install A UNI Flange
UNI Flange For Ductile Iron Pipe
UNI Flange For Steel Pipe
Technical Data Of UNI Flange
UNI Series 470 Flange Dimensions
UNI Series 474 Flange Dimensions
UNI Series 490 Flange Dimensions
Features Of EN 1092-1 UNI Flange
UNI Flange Gasket
| (Normal Size Of Steel Pipes) In Inch | (I.D.) Inner Daimeter Gasket | (O.D.) Outer Daimeter Gasket | ||||
|---|---|---|---|---|---|---|
| Class 150#/ LB | Class 300#/ LB | Class 400#/ LB | Class 600#/ LB | Class 900#/ LB | ||
| 1/2 | 0.84 | 1.875 | 2.125 | 2.125 | 2.125 | 2.50 |
| 3/4 | 1.06 | 2.25 | 2.625 | 2.625 | 2.625 | 2.75 |
| 1 | 1.31 | 2.625 | 2.875 | 2.875 | 2.875 | 3.125 |
| 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 |
| 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 |
| 8 | 8.62 | 11 | 12.125 | 12.00 | 12.625 | 14.125 |
| 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 |
UNI Flange Torque Specs
| Pipe Flange Size Inch | Pipe Flange Size MM | (Maximum) Radial Projection | |
|---|---|---|---|
| No Deeper Than the Bottom In Millimeter | Deeper Than the Bottom In Millimeter | ||
| 1/2 | 15 | 3.0 | 1.5 |
| 3/4 | 20 | 3.0 | 1.5 |
| 1 | 25 | 3.0 | 1.5 |
| 1 1/4 | 32 | 3.0 | 1.5 |
| 1 1/2 | 40 | 3.0 | 1.5 |
| 2 | 50 | 3.0 | 1.5 |
| 2 1/2 | 65 | 3.0 | 1.5 |
| 3 | 80 | 4.5 | 1.5 |
| 3 1/2 | 90 | 6.0 | 3.0 |
| 4 | 100 | 6.0 | 3.0 |
| 5 | 125 | 6.0 | 3.0 |
| 6 | 150 | 6.0 | 3.0 |
| 8 | 200 | 8.0 | 4.5 |
| 10 | 250 | 8.0 | 4.5 |
| 12 | 300 | 8.0 | 4.5 |
| 14 | 350 | 8.0 | 4.5 |
| 16 | 400 | 10.0 | 4.5 |
| 18 | 450 | 12.0 | 6.0 |
UNI Slip On Flange Bolt Size
| Size in (Inches) | Size in (Millimeter) | Number of Bolts | Bolt Size Of UNC | Length Of RF Stud | Size Of ISO Stud | Length Of Machine Bolts |
|---|---|---|---|---|---|---|
| Class 150 Flange | ||||||
| 1/2 | 15 | 4 | 1/2 | 55 | M14 | 50 |
| 3/4 | 20 | 4 | 1/2 | 65 | M14 | 50 |
| 1 | 25 | 4 | 1/2 | 65 | M14 | 55 |
| 1 1/4 | 32 | 4 | 1/2 | 70 | M14 | 55 |
| 1 1/2 | 40 | 4 | 1/2 | 70 | M14 | 65 |
| 2 | 50 | 4 | 5/8 | 85 | M16 | 70 |
| 2 1/2 | 65 | 4 | 5/8 | 90 | M16 | 75 |
| 3 | 80 | 4 | 5/8 | 90 | M16 | 75 |
| 3 1/2 | 90 | 8 | 5/8 | 90 | M16 | 75 |
| 4 | 100 | 8 | 5/8 | 90 | M16 | 75 |
| 5 | 125 | 8 | 3/4 | 95 | M20 | 85 |
| 6 | 150 | 8 | 3/4 | 100 | M20 | 85 |
| 8 | 200 | 8 | 3/4 | 110 | M20 | 90 |
| 10 | 250 | 12 | 7/8 | 115 | M24 | 100 |
| 12 | 300 | 12 | 7/8 | 120 | M24 | 100 |
| 14 | 350 | 12 | 1 | 135 | M27 | 115 |
| 16 | 400 | 16 | 1 | 135 | M27 | 115 |
| 18 | 450 | 16 | 1 1/8 | 145 | M30 | 125 |
| 20 | 500 | 20 | 1 1/8 | 160 | M30 | 140 |
| 24 | 600 | 20 | 1 1/4 | 170 | M33 | 150 |
| Size in (Inches) | Size in (Millimeter) | Number of Bolts | Bolt Size Of UNC | Length Of RF Stud | Size Of ISO Stud | Length Of Machine Bolts |
|---|---|---|---|---|---|---|
| Class 300 Flange | ||||||
| 1/2 | 15 | 4 | 1/2 | 65 | M14 | 55 |
| 3/4 | 20 | 4 | 5/8 | 75 | M16 | 65 |
| 1 | 25 | 4 | 5/8 | 75 | M16 | 65 |
| 1 1/4 | 32 | 4 | 5/8 | 85 | M16 | 70 |
| 1 1/2 | 40 | 4 | 3/4 | 90 | M20 | 75 |
| 2 | 50 | 8 | 5/8 | 90 | M16 | 75 |
| 2 1/2 | 65 | 8 | 3/4 | 100 | M20 | 85 |
| 3 | 80 | 8 | 3/4 | 110 | M20 | 90 |
| 3 1/2 | 90 | 8 | 3/4 | 110 | M20 | 95 |
| 4 | 100 | 8 | 3/4 | 115 | M20 | 95 |
| 5 | 125 | 8 | 3/4 | 120 | M20 | 110 |
| 6 | 150 | 12 | 3/4 | 120 | M20 | 110 |
| 8 | 200 | 12 | 7/8 | 140 | M24 | 120 |
| 10 | 250 | 16 | 1 | 160 | M27 | 140 |
| 12 | 300 | 16 | 1 1/8 | 170 | M30 | 145 |
| 14 | 350 | 20 | 1 1/8 | 180 | M30 | 160 |
| 16 | 400 | 20 | 1 1/4 | 190 | M33 | 165 |
| 18 | 450 | 24 | 1 1/4 | 195 | M33 | 170 |
| 20 | 500 | 24 | 1 1/4 | 205 | M33 | 185 |
| 24 | 600 | 24 | 1 1/2 | 230 | M39 | 205 |
Value Added Services
Documentation


