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+91-9987870874
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Flanges are used to connect 2 pipes or tubes of different or the same size together. They are available in various materials, stainless steel being one of the most common ones. ASTM A182 SS Flange offers benefits such as high tensile strength, corrosion and temperature resistance, elegant appearance, and being environmentally friendly. As per Stainless Steel Flanges Manufacturer In India these flanges are said to be durable, with a low maintenance cost, and easy to weld and form. Large Diameter Stainless Steel Flanges eliminate the need for the pipe to be welded. Painting and blasting of ASME SA182 Forgings Material are not necessary.
High Pressure Stainless Steel Flanges can be classified into 2 types ferritic and austenitic. The ferritic AWWA C207 SS Pipe Flange has some magnetic properties along with ductility, and resistance to stress corrosion cracking and thermal fatigue. The austenitic 3 Inch SS Flange is identified via the addition of nickel. The ferritic Stainless Steel Plate Flanges are used in furnaces, petrochemical industries, and heat exchangers. Whereas, austenitic Stainless Steel Forged Flanges are used in food preparation equipment, laboratory benches, textile, boat fittings, chemical processing, and creep resistance.
Class 150 Stainless Steel Split Flanges can be used in various temperatures however as the temperature increases the pressure rating of this class decreases. EN 1092-1 Stainless Steel Mechanical Joint Flanges are also available in martensitic and duplex types as well. EN 1092-1 Type 02 SS Header Flange is used to connect pipes and is welded with overlap weld. Stainless Pipe Flanges have good corrosion resistance properties and low carbon content. Forged Stainless Steel Flanges are produced by using a forging process where mechanical energy is used to change the shape when in the solid state. 2 Inch Stainless Steel Flange offers simple fitting, repair, and replacement of these flanges.
| Manufacturer Specifications | ASTM A182 Stainless Steel Flanges |
|---|---|
| Different Types Of SS Flanges | Blind/ Slip On/ Weld Neck/ Socket Weld/ RTJ/ Lap Joint/ Threaded/ Reducing Flanges |
| Thickness | SCH 5S/ SCH 10/ SCH 40/ SCH 80/ SCH 120/ SCH 160/ SCH 180 To XXS. |
| SS Flanges Dimensions Or Standard | EN 1092-1/ EN 1092-2/ DIN 2561/ P235GH/ API/ DIN 2501/ DIN 2527 |
| Size | NPS 1⁄₂" To NPS 48” |
| Face Type | Ring Type Joint/ Raised Face/ Flat Face |
| Available Gared | ASTM A182 F304 & F304L/ ASTM A182 F316 & F316L/ ASTM A182 F321/ ASTM A182 F347. |
| Flange Forging Methods | Forging/ Casting/ Rolling And Cutting |
| Pressure Class | Class 150/ Class 300/ Class 400/ Class 600/ Class 600/ Class 900/ Class 1500/ Class 2500. |
| Type Of Flange | Size | SCH | Class | Material | Price In INR (India) Per Piece |
|---|---|---|---|---|---|
| Blind Flange | 3/4 | SCH 40 | 150 | Stainless Steel | 150.00 |
| Blind | 1" | SCH 40 | 150 | - | 248.00 |
| Blind | 1-1/2" | SCH 40 | 150 | - | 399.00 |
| Blind | 2" | SCH 40 | 150 | - | 523.00 |
| Blind | 3" | SCH 40 | 150 | - | 650.00 |
| Blind | 4" | SCH 40 | 150 | - | 968.00 |
| Weld Neck Flange | 1/3" | SCH STD | 150 | - | 274.00 |
| Weld Neck | 1" | SCH STD | 150 | - | 389.00 |
| Weld Neck | 2" | SCH STD | 150 | - | 635.00 |
| Weld Neck | 3" | SCH STD | 150 | Stainless Steel | 847.00 |
| Weld Neck | 4" | SCH STD | 300 | - | 944.00 |
| Weld Neck | 6" | SCH 80 | 300 | - | 1199.00 |
| Slip On Flange | 3/4" | SCH 40 | 150 | - | 184.00 |
| Slip On | 1" | SCH 40 | 150 | - | 294.00 |
| Slip On | 2" | SCH 40 | 150 | - | 403.00 |
| Slip On | 3" | SCH 40 | 150 | Stainless Steel | 350.00 |
| Slip On | 4" | SCH 40 | 150 | - | 533.00 |
| Slip On | 6" | SCH 40 | 150 | - | 873.00 |
| Slip On | 8" | SCH 80 | 300 | - | 1342.00 |
| Socket Weld Flange | 3/4" | SCH XS | 150 | Stainless Steel | 183.00 |
| Socket Weld | 1" | SCH XS | 150 | - | 245.00 |
| Socket Weld | 1-1/2” | SCH XS | 150 | - | 399.00 |
| Socket Weld | 1” | SCH XS | 150 | - | 500.00 |
| Socket Weld | 2” | SCH XS | 150 | Stainless Steel | 649.00 |
One Of India’s Largest Manufacturer Of Stainless Steel Flanges In India. For final SS Flanges Price List Please Call on +91-9987870874 or drop an Email to info@fastwell.in.
| NPS | (O.D.) For Outside Diameter | Minimum (Wall Thickness) (T) | Diameter Of Raised Face (RF) (R) | Number of Bolts Holes | Dia. of Holes | B.C. For (Bolt Circle) | SORF Bore I.D. (SB) | WNRF Bore I.D. (WB) | Diameter Of Hub Base (H.B.) | Diameter of Hub Top (H.T.) | SORF Length (S.L.) | WNRF Length (W.L.) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1⁄2 | 3.50 | 0.38 | 1.38 | 4 | 0.62 | 2.38 | 0.88 | 0.62 | 1.19 | 0.84 | 0.56 | 1.81 |
| 3⁄4 | 3.88 | 0.44 | 1.69 | 4 | 0.62 | 2.75 | 1.09 | 0.82 | 1.50 | 1.05 | 0.56 | 2.00 |
| 1 | 4.25 | 0.50 | 2.00 | 4 | 0.62 | 3.12 | 1.36 | 1.05 | 1.94 | 1.32 | 0.62 | 2.12 |
| 11⁄4 | 4.62 | 0.56 | 2.50 | 4 | 0.62 | 3.50 | 1.70 | 1.38 | 2.31 | 1.66 | 0.75 | 2.19 |
| 11⁄2 | 5.00 | 0.62 | 2.88 | 4 | 0.62 | 3.88 | 1.95 | 1.61 | 2.56 | 1.90 | 0.81 | 2.38 |
| 2 | 6.00 | 0.69 | 3.62 | 4 | 0.75 | 4.75 | 2.44 | 2.07 | 3.06 | 2.38 | 0.94 | 2.44 |
| 21⁄2 | 7.00 | 0.81 | 4.12 | 4 | 0.75 | 5.50 | 2.94 | 2.47 | 3.56 | 2.88 | 1.06 | 2.69 |
| 3 | 7.50 | 0.88 | 5.00 | 4 | 0.75 | 6.00 | 3.57 | 3.07 | 4.25 | 3.50 | 1.12 | 2.69 |
| 31⁄2 | 8.50 | 0.88 | 5.50 | 8 | 0.75 | 7.00 | 4.07 | 3.55 | 4.81 | 4.00 | 1.19 | 2.75 |
| 4 | 9.00 | 0.88 | 6.19 | 8 | 0.75 | 7.50 | 4.57 | 4.03 | 5.31 | 4.50 | 1.25 | 2.94 |
| 5 | 10.00 | 0.88 | 7.31 | 8 | 0.88 | 8.50 | 5.66 | 5.05 | 6.44 | 5.56 | 1.38 | 3.44 |
| 6 | 11.00 | 0.94 | 8.50 | 8 | 0.88 | 9.50 | 6.72 | 6.07 | 7.56 | 6.63 | 1.50 | 3.44 |
| 8 | 13.50 | 1.06 | 10.62 | 8 | 0.88 | 11.75 | 8.72 | 7.98 | 9.69 | 8.63 | 1.69 | 3.94 |
| 10 | 16.00 | 1.12 | 12.75 | 12 | 1.00 | 14.25 | 10.88 | 10.02 | 12.00 | 10.75 | 1.88 | 3.94 |
| 12 | 19.00 | 1.19 | 15.00 | 12 | 1.00 | 17.00 | 12.88 | 12.00 | 14.38 | 12.75 | 2.12 | 4.44 |
| 14 | 21.00 | 1.31 | 16.25 | 12 | 1.12 | 18.75 | 14.14 | 13.25 | 15.75 | 14.00 | 2.19 | 4.94 |
| 16 | 23.50 | 1.38 | 18.50 | 16 | 1.12 | 21.25 | 16.16 | 15.25 | 18.00 | 16.00 | 2.44 | 4.94 |
| 18 | 25.00 | 1.50 | 21.00 | 16 | 1.25 | 22.75 | 18.18 | 17.25 | 19.88 | 18.00 | 2.62 | 5.44 |
| 20 | 27.50 | 1.62 | 23.00 | 20 | 1.25 | 25.00 | 20.20 | 19.25 | 22.00 | 20.00 | 2.81 | 5.62 |
| 22 | 29.50 | 1.75 | 25.25 | 20 | 1.38 | 27.25 | 22.22 | 21.25 | 24.25 | 22.00 | 3.07 | 5.82 |
| 24 | 32.00 | 1.81 | 27.25 | 20 | 1.38 | 29.50 | 24.25 | 23.25 | 26.12 | 24.00 | 3.19 | 5.94 |
Stainless Steel Blind Flanges
Stainless Steel Slip On Flanges
Stainless Steel Weld Neck Flanges
Stainless Steel Socket Weld Flanges
Stainless Steel Plate Flanges
Stainless Steel Lap Joint Flanges
Stainless Steel Threaded Flanges
Stainless Steel Raised Face Flanges
Stainless Steel RTJ Flanges
Stainless Steel Puddle Flange
Stainless Steel Spectacle Blind Flange
Stainless Steel Orifice Flanges
Stainless Steel Flat Face Flange
Stainless Steel Long Weld Neck Flanges
Stainless Steel Square Flange
| Nominal Pipe Size For (NPS) | Slip On Flange (SORF) | Threaded Flange (NPT) | Socket Weld Flange (SWRF) | Lap Joint Flange (Loose) | Blind Flange (BLRF) | Weld Neck Flange (WNRF) |
|---|---|---|---|---|---|---|
| ½ | 1 | 1 | 2 | 1 | 2 | 2 |
| ¾ | 2 | 2 | 2 | 2 | 2 | 2 |
| 1 | 2 | 2 | 2 | 2 | 2 | 3 |
| 1¼ | 3 | 3 | 3 | 3 | 3 | 3 |
| 1½ | 3 | 3 | 3 | 3 | 4 | 4 |
| 2 | 5 | 5 | 5 | 5 | 5 | 6 |
| 2½ | 8 | 8 | 8 | 8 | 7 | 10 |
| 3 | 9 | 9 | 9 | 9 | 9 | 11.5 |
| 3½ | 11 | 12 | 11 | 11 | 13 | 12 |
| 4 | 13 | 13 | 13 | 13 | 17 | 16.5 |
| 5 | 15 | 15 | 15 | 15 | 20 | 21 |
| 6 | 19 | 19 | 19 | 19 | 27 | 26 |
| 8 | 30 | 30 | 30 | 30 | 47 | 42 |
| 10 | 43 | 43 | 43 | 43 | 70 | 54 |
| 12 | 64 | 64 | 64 | 64 | 123 | 88 |
| 14 | 90 | 90 | 90 | 105 | 140 | 114 |
| 16 | 106 | 98 | 98 | 140 | 180 | 140 |
| 18 | 130 | 130 | 130 | 160 | 220 | 165 |
| 20 | 165 | 165 | 165 | 195 | 285 | 197 |
| 22 | 185 | 185 | 185 | 245 | 355 | 225 |
| 24 | 220 | 220 | 220 | 275 | 430 | 268 |
| Temperature In °F | 150# According To ASME B16.5 | 300# According To ASME B16.5 | 400# According To ASME B16.5 | 600# According To ASME B16.5 | 900# According To ASME B16.5 | 1500# According To ASME B16.5 | 2500# According To ASME B16.5 |
| -20 to 100 | 275 | 720 | 960 | 1440 | 2160 | 3600 | 6000 |
| 200 | 230 | 600 | 800 | 1200 | 1800 | 3000 | 5000 |
| 300 | 205 | 540 | 720 | 1080 | 1620 | 2700 | 4500 |
| 400 | 190 | 495 | 660 | 995 | 1490 | 2485 | 4140 |
| 500 | 170 | 465 | 620 | 930 | 1395 | 2330 | 3880 |
| 600 | 140 | 435 | 580 | 875 | 1310 | 2185 | 3640 |
| 650 | 125 | 430 | 575 | 860 | 1290 | 2150 | 3580 |
| 700 | 110 | 425 | 565 | 850 | 1275 | 2125 | 3540 |
| 750 | 95 | 415 | 555 | 830 | 1245 | 2075 | 3460 |
| 800 | 80 | 405 | 540 | 805 | 1210 | 2015 | 3360 |
| 850 | 65 | 395 | 530 | 790 | 1190 | 1980 | 3300 |
| 900 | 50 | 390 | 520 | 780 | 1165 | 1945 | 3240 |
| 950 | 35 | 380 | 510 | 765 | 1145 | 1910 | 3180 |
| 1000 | 20 | 320 | 430 | 640 | 965 | 1605 | 2675 |
| 1050 | 20 | 310 | 410 | 615 | 925 | 1545 | 2570 |
| 1100 | 20 | 255 | 345 | 515 | 770 | 1285 | 2145 |
| 1150 | 20 | 200 | 265 | 400 | 595 | 995 | 1655 |
| 1200 | 20 | 155 | 205 | 310 | 465 | 770 | 1285 |
| 1250 | 20 | 115 | 150 | 225 | 340 | 565 | 945 |
| 1300 | 20 | 85 | 115 | 170 | 255 | 430 | 715 |
| 1350 | 20 | 60 | 80 | 125 | 185 | 310 | 515 |
| 1400 | 20 | 50 | 65 | 95 | 145 | 240 | 400 |
| 1450 | 15 | 35 | 45 | 70 | 105 | 170 | 285 |
| 1500 | 10 | 25 | 35 | 55 | 80 | 135 | 230 |
| Size in (Inches) | Size in (Millimeter) | Number of Bolts | Bolt (UNC) Size | RF (Raised Face) Stud Length | Stud (ISO) Size | Machine Flange Bolt Length |
|---|---|---|---|---|---|---|
| 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 |
| (NPS) For Nominal Pipe Size In (inches) | As Per ASME B16.5 Class 150 | ||||
|---|---|---|---|---|---|
| Flange Diameter In (inch) | Bolts Number | Bolt Diameter In (inch) | Bolt Holes (B.H.) Diameter In (inch) | Bolt Circle (B.C.) In(inch) | |
| 1/4 | 3-3/8 | 4 | 1/2 | 0.62 | 2-1/4 |
| 1/2 | 3-1/2 | 4 | 1/2 | 0.62 | 2-3/8 |
| 3/4 | 3-7/8 | 4 | 1/2 | 0.62 | 2-3/4 |
| 1 | 4-1/4 | 4 | 1/2 | 0.62 | 3-1/8 |
| 1-1/4 | 4-5/8 | 4 | 1/2 | 0.62 | 3-1/2 |
| 1-1/2 | 5 | 4 | 1/2 | 0.62 | 3-7/8 |
| 2 | 6 | 4 | 5/8 | 0.75 | 4-3/4 |
| 2-1/2 | 7 | 4 | 5/8 | 0.75 | 5-1/2 |
| 3 | 7-1/2 | 4 | 5/8 | 0.75 | 6 |
| 3-1/2 | 8-1/2 | 8 | 5/8 | 0.75 | 7 |
| 4 | 9 | 8 | 5/8 | 0.75 | 7-1/2 |
| 5 | 10 | 8 | 3/4 | 0.88 | 8-1/2 |
| 6 | 11 | 8 | 3/4 | 0.88 | 9-1/2 |
| 8 | 13-1/2 | 8 | 3/4 | 0.88 | 11-3/4 |
| 10 | 16 | 12 | 7/8 | 1 | 14-1/4 |
| 12 | 19 | 12 | 7/8 | 1 | 17 |
| 14 | 21 | 12 | 1 | 1.12 | 18-3/4 |
| 16 | 23-1/2 | 16 | 1 | 1.12 | 21-1/4 |
| 18 | 25 | 16 | 1-1/8 | 1.25 | 22-3/4 |
| 20 | 27-1/2 | 20 | 1-1/8 | 1.25 | 25 |
| 24 | 32 | 20 | 1-1/4 | 1.38 | 29-1/2 |
| Stainless Steel Flanges | Type Of Daimeter | Tolerance List |
|---|---|---|
| (A) | (O.D.) For Outside Diameter |
|
| (D) | (I.D.) For Inside Diameter |
|
| (B) | Contact Face |
|
| (J) | Hub At Base Daimeter |
|
| (H) | Diameter of hub at point of welding |
|
| (P) | Drilling |
|
| Eccentricity of bolt circle (bc) with respect to facing |
| |
| (C) | Wall Thickness |
|
| (K) | hub Length |
|
| NPS For (Normal Pipe Size) | Gasket (I.D.) Inside Daimeter | Gasket (O.D.) Outside Daimeter | ||||
|---|---|---|---|---|---|---|
| #150LB | #300LB | #400LB | #600LB | #900LB | ||
| 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 |
| Grade Name | Type Of Heat | Solutioning And Austenitizing | Cooling | Quenching | Tempering | ||
| Treat Types | Temp., min. (°F) | Media | Cool | Temperature | |||
| Stainless Steel 304 Flanges | Solution | 1900 [1040] | Liquid | 500 [260] | B | ||
| treat and | |||||||
| quench | |||||||
| Stainless Steel 304L Flanges | Solution | 1900 [1040] | Liquid | 500 [260] | B | ||
| treat and | |||||||
| quench | |||||||
| Stainless Steel 316 Flanges | Solution | 1900 [1040] | Liquid | 500 [260] | B | ||
| treat and | |||||||
| quench | |||||||
| Stainless Steel 316L Flanges | Solution | 1900 [1040] | Liquid | 500 [260] | BB | ||
| treat and | |||||||
| quench | |||||||
| Stainless Steel 321 Flanges | Solution | 1900 [1040] | Liquid | 500 [260] | |||
| treat and | |||||||
| quench | |||||||
| Stainless Steel 347 Flanges | Solution | 1900 [1040] | liquid | 500 [260] | B | ||
| treat and | |||||||
| quench | |||||||
| STANDARD | JIS | BS | GOST | AFNOR | EN | WERKSTOFF NR. | UNS |
| Stainless Steel 304 Flanges | SUS 304 | 304S31 | 08Х18Н10 | Z7CN18‐09 | X5CrNi18-10 | 1.4301 | S30400 |
| Stainless Steel 304L Flanges | SUS 304L | 3304S11 | 03Х18Н11 | Z3CN18‐10 | X2CrNi18-9 / X2CrNi19-11 | 1.4306 / 1.4307 | S30403 |
| Stainless Steel 316 Flanges | SUS 316 | 316S31 / 316S33 | – | Z7CND17‐11‐02 | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 | 1.4401 / 1.4436 | S31600 |
| Stainless Steel 316L Flanges | SUS 316L | 316S11 / 316S13 | 03Ch17N14M3 / 03Ch17N14M2 | Z3CND17‐11‐02 / Z3CND18‐14‐03 | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 | 1.4404 / 1.4435 | S31603 |
| Stainless Steel 321 Flanges | SUS 321 | – | – | – | X6CrNiTi18-10 | 1.4541 | S32100 |
| Stainless Steel 321H Flanges | SUS 321H | – | – | – | X12CrNiTi18-9 | 1.4878 | S32109 |
| Stainless Steel 347 Flanges | SUS 347 | – | 08Ch18N12B | – | X6CrNiNb18-10 | 1.4550 | S34700 |
| Stainless Steel 347H Flanges | SUS 347H | – | – | – | X6CrNiNb18-12 | 1.4961 | S34709 |
| HS Code For SS Pipe Flanges | Des Of Item | Policy |
|---|---|---|
| 73 | Iron And Steel | - |
| 73072100 | Other, of ASTM A182/ ASME SA182 Stainless Steel Flanges | Free |
| NPS For (Normal Pipe Size) | Outside Daimeter Of (O.D.) (A) | Wall Thickness Of (B) | Daimeter Of Raised Face (C) | (D) (B.C.D.) | # Flanges Bolts Holes | Daimeter Of Bolt Holes | Approx. Weight In KG (Kilogram) |
|---|---|---|---|---|---|---|---|
| 1/2" | 3-1/2 | 7/16 | 1-3/8 | 2-3/8 | 4 | 5/8 | 2 |
| 3/4" | 3-7/8 | 1/2 | 1-11/16 | 2-3/4 | 4 | 5/8 | 2 |
| 1" | 4-1/4 | 9/16 | 2 | 3-1/8 | 4 | 5/8 | 2 |
| 1-1/4" | 4-5/8 | 5/8 | 2-1/2 | 3-1/2 | 4 | 5/8 | 3 |
| 1-1/2" | 5 | 11/16 | 2-7/8 | 3-7/8 | 4 | 5/8 | 3 |
| 2" | 6 | 3/4 | 3-5/8 | 4-3/4 | 4 | 3/4 | 4 |
| 2-1/2" | 7 | 7/8 | 4-1/8 | 5-1/2 | 4 | 3/4 | 7 |
| 3" | 7-1/2 | 15/16 | 5 | 6 | 4 | 3/4 | 9 |
| 3-1/2" | 8-1/2 | 15/16 | 5-1/2 | 7 | 8 | 3/4 | 13 |
| 4" | 9 | 15/16 | 6-3/16 | 7-1/2 | 8 | 3/4 | 17 |
| 5" | 10 | 15/16 | 7-5/16 | 8-1/2 | 8 | 7/8 | 20 |
| 6" | 11 | 1 | 8-1/2 | 9-1/2 | 8 | 7/8 | 27 |
| 8" | 13-1/2 | 1-1/8 | 10-5/8 | 11-3/4 | 8 | 7/8 | 47 |
| 10" | 16 | 1-3/16 | 12-3/4 | 14-1/4 | 12 | 1 | 67 |
| 12" | 19 | 1-1/4 | 15 | 17 | 12 | 1 | 123 |
| 14" | 21 | 1-3/8 | 16-1/4 | 18-3/4 | 12 | 1-1/8 | 139 |
| 16" | 23-1/2 | 1-7/16 | 18-1/2 | 21-1/4 | 16 | 1-1/8 | 187 |
| 18" | 25 | 1-9/16 | 21 | 22-3/4 | 16 | 1-1/4 | 217 |
| 20" | 27-1/2 | 1-11/16 | 23 | 25 | 20 | 1-1/4 | 283 |
| 24" | 32 | 1-7/8 | 27-1/4 | 29-1/2 | 20 | 1-3/8 | 415 |
| Normal Pipe Size For (NPS) | (Inside Diameter) For I.D. | O.D. For (Outside Daimeter) | B.C. For (Circle Bolt) | Raised (R) | RF For (Raised Face) | H For (Hight) | Raised Face Wall Thickness | Thickness1 | Flat Face (FF) (Thickness2) | Bolts Holes For (B.C.) | Number Of Bolt Hole (B.H.) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 0.88 | 3.50 | 2.38 | 1.38 | .063 | 1.19 | .62 | .38 | .56 | .62 | 4 |
| 3/4 | 1.09 | 3.88 | 2.75 | 1.69 | .063 | 1.50 | .62 | .44 | .56 | .62 | 4 |
| 1 | 1.36 | 4.25 | 3.12 | 2.00 | .063 | 1.94 | .69 | .50 | .63 | .62 | 4 |
| 1-1/4 | 1.70 | 4.62 | 3.50 | 2.50 | .063 | 2.31 | .81 | .56 | .75 | .62 | 4 |
| 1-1/2 | 1.97 | 5.00 | 3.88 | 2.88 | .063 | 2.56 | .88 | .62 | .82 | .62 | 4 |
| 2 | 2.44 | 6.00 | 4.75 | 3.62 | .063 | 3.06 | 1.00 | .69 | .94 | .75 | 4 |
| 2-1/2 | 2.94 | 7.00 | 5.50 | 4.12 | .063 | 3.56 | 1.12 | .82 | 1.06 | .75 | 4 |
| 3 | 3.57 | 7.50 | 6.00 | 5.00 | .063 | 4.25 | 1.19 | .88 | 1.13 | .75 | 4 |
| 3-1/2 | 4.07 | 8.50 | 7.00 | 5.50 | .063 | 4.81 | 1.25 | .88 | 1.19 | .75 | 8 |
| 4 | 4.57 | 9.00 | 7.50 | 6.19 | .063 | 5.31 | 1.31 | .88 | 1.25 | .75 | 8 |
| 5 | 5.66 | 10.00 | 8.50 | 7.31 | .063 | 6.44 | 1.44 | .88 | 1.38 | .88 | 8 |
| 6 | 6.72 | 11.00 | 9.50 | 8.50 | .063 | 7.56 | 1.56 | .94 | 1.50 | .88 | 8 |
| 8 | 8.72 | 13.50 | 11.75 | 10.62 | .063 | 9.69 | 1.75 | 1.06 | 1.69 | .88 | 8 |
| 10 | 10.88 | 16.00 | 14.25 | 12.75 | .063 | 12.00 | 1.94 | 1.13 | 1.88 | 1.00 | 12 |
| 12 | 12.88 | 19.00 | 17.00 | 15.00 | .063 | 14.38 | 2.19 | 1.19 | 2.13 | 1.00 | 12 |
| 14 | 14.14 | 21.00 | 18.75 | 16.25 | .063 | 15.75 | 2.25 | 1.32 | 2.19 | 1.12 | 12 |
| 16 | 16.16 | 23.50 | 21.25 | 18.50 | .063 | 18.00 | 2.50 | 1.38 | 2.44 | 1.12 | 16 |
| 18 | 18.18 | 25.00 | 22.75 | 21.00 | .063 | 19.88 | 2.69 | 1.50 | 2.63 | 1.25 | 16 |
| 20 | 20.20 | 27.50 | 25.00 | 23.00 | .063 | 22.00 | 2.88 | 1.63 | 2.83 | 1.25 | 20 |
| 22 | 22.22 | 29.50 | 27.25 | 25.25 | .063 | 24.25 | 3.13 | 1.75 | 3.07 | 1.38 | 20 |
| 24 | 24.25 | 32.00 | 29.50 | 27.25 | .063 | 26.12 | 3.25 | 1.82 | 3.19 | 1.38 | 20 |
| Size (NPS) in Inches | NPS (Normal Pipe Size) Size in Millimeter | Outer Diameter For (O.D.) | Thickness Of Weld Neck Flange | Hub Outer Diameter | Weld Neck Outer Diameter | Length Of ASME B16.5 Welding Neck | Daimeter Of WN Bore | Diameter Of RF (Raised Face) | Raised Face (RF) Height | PCD | Face Of Weld |
| A | B | C | D | E | F | G | H | I | J | ||
| 1/2 | 15 | 90 | 9.6 | 30 | 21.3 | 46 | - | 34.9 | 2 | 60.3 | 1.6 |
| 3/4 | 20 | 100 | 11.2 | 38 | 26.7 | 51 | 42.9 | 2 | 69.9 | 1.6 | |
| 1 | 25 | 110 | 12.7 | 49 | 33.4 | 54 | 50.8 | 2 | 79.4 | 1.6 | |
| 1 1/4 | 32 | 115 | 14.3 | 59 | 42.2 | 56 | 63.5 | 2 | 88.9 | 1.6 | |
| 1 1/2 | 40 | 125 | 15.9 | 65 | 48.3 | 60 | 73 | 2 | 98.4 | 1.6 | |
| 2 | 50 | 150 | 17.5 | 78 | 60.3 | 62 | 92.1 | 2 | 120.7 | 1.6 | |
| 2 1/2 | 65 | 180 | 20.7 | 90 | 73 | 68 | 104.8 | 2 | 139.7 | 1.6 | |
| 3 | 80 | 190 | 22.3 | 108 | 88.9 | 68 | 127 | 2 | 152.4 | 1.6 | |
| 3 1/2 | 90 | 215 | 22.3 | 122 | 101.6 | 70 | 139.7 | 2 | 177.8 | 1.6 | |
| 4 | 100 | 230 | 22.3 | 135 | 114.3 | 75 | 157.2 | 2 | 190.5 | 1.6 | |
| 5 | 125 | 255 | 22.3 | 164 | 141.3 | 87 | 185.7 | 2 | 215.9 | 1.6 | |
| 6 | 150 | 280 | 23.9 | 192 | 168.3 | 87 | 215.9 | 2 | 241.3 | 1.6 | |
| 8 | 200 | 345 | 27 | 246 | 219.1 | 100 | 269.9 | 2 | 298.5 | 1.6 | |
| 10 | 250 | 405 | 28.6 | 305 | 273 | 100 | 323.8 | 2 | 362 | 1.6 | |
| 12 | 300 | 485 | 30.2 | 365 | 323.8 | 113 | 381 | 2 | 431.8 | 1.6 | |
| 14 | 350 | 535 | 33.4 | 400 | 355.6 | 125 | 412.8 | 2 | 476.3 | 1.6 | |
| 16 | 400 | 595 | 35 | 457 | 406.4 | 125 | 469.9 | 2 | 539.8 | 1.6 | |
| 18 | 450 | 635 | 38.1 | 505 | 457.2 | 138 | 533.4 | 2 | 577.9 | 1.6 | |
| 20 | 500 | 700 | 41.3 | 559 | 508 | 143 | 584.2 | 2 | 635 | 1.6 | |
| 24 | 600 | 815 | 46.1 | 663 | 610 | 151 | 692.2 | 2 | 749.3 | 1.6 |
| Types of Flanges Faces | DIN And EN 1092-1 |
|---|---|
| Without (RF) Raised Face | Form A |
| (RF) For Raised Face | Form B1 |
| (RF) For Raised Face | Form B1 |
| (RF) For Raised Fac | Form B2 |
| DIN2512 Tongue Flanges | Form C |
| DIN 2512 Groove Flanges | Form D |
| DIN 2513 Male Flanges | Form E |
| DIN 2513 Female Flanges | Form F |
Lap Joint (Loose) And Slip On (SORF) Flange Bores
| Size Chart | Tolerance Of |
|---|---|
| (NPS) For Normal Pipe Size ≤ 10 | +1.0, -0.0 mm (+0.03,-0.0 in.) |
| (NPS) For Normal Pipe Size ≥ 12 | +1.5, -0.0 mm (+0.06,-0.0 in.) |
Counter Bores, Threaded (NPT) Flanges
| Size Chart | Tolerance Of |
|---|---|
| (NPS) For Normal Pipe Size ≤ 10 | +1.0, -0.0 mm (+0.03,-0.0 in.) |
| (NPS) For Normal Pipe Size ≥ 12 | +1.5, -0.0 mm (+0.06,-0.0 in.) |
Counter Bores, Weld Neck (Welding) Flanges
| Size Chart | Tolerance |
|---|---|
| 1/2 ≤ Normal Size Of Pipe ≤ 3 | ±0.25 mm (±0.010 in.) |
ASME B16.5 Stainless Steel Flanges Marking includes ANSI Or ASME/ ASA Code
| Temperature (in F°) | Class 150 |
| < 100 | 285 |
| 200 | 260 |
| 300 | 230 |
| 400 | 200 |
| 500 | 170 |
| 600 | 140 |
| 650 | 125 |
| 700 | 110 |
| 750 | 95 |
| 800 | 80 |
| 850 | 65 |
| 900 | 50 |
| 950 | 35 |
| 1000 | 20 |
| Temperature (in F°) | Class 300 |
| < 100 | 740 |
| 200 | 680 |
| 300 | 655 |
| 400 | 635 |
| 500 | 605 |
| 600 | 570 |
| 650 | 550 |
| 700 | 530 |
| 750 | 505 |
| 800 | 410 |
| 850 | 320 |
| 900 | 230 |
| 950 | 135 |
| 1000 | 85 |
|
Type Of ASME B16.5 Flange |
Check Pressure Class Of Pipe Flange |
NPS List |
Advantages & Applications |
|
Low Pressure |
All |
Simple Installation/ Low Price/ Easy To Use |
|
|
Very High Pressure |
All |
Pressure Testing/ Connected To Closing Pipe And Valve/ Low Price/ Easy Installation |
|
|
High Pressure |
Small |
SW Flange For ; Smooth Bore And Better Fluid Flow |
|
|
Low Pressure |
Small |
Threaded Flanges (NPT/ BSP): Bore Which Matches An External Thread On The Pipe |
|
|
Low Pressure |
All |
Lap Joint Flanges Have A Long Neck And Stub End That Is Welded To The Pipe |
|
|
High Pressure |
All |
WN Flange use Conditions Are Critical And Severe. |
Forged Stainless Steel Flanges
United Kingdom -UK, Europe, UAE, Malaysia
Stainless Steel Blind Flange
Dammam -KSA, Philippines, Indonesia
4 Inch Stainless Steel Flange
Thailand, Qatar, France, Europe
Stainless Floor Flange
Germany, Bangladesh, USA, Finland
Stainless Steel Slip On Flange
Brazil, South Africa, Saudi Arabia (KSA), Kuwait
Stainless Steel Pipe Flange
Egypt, Nigeria, Australia, Turkey, UK, Belgium
2 Inch SS Flange
Hong Kong, Oman, Spain, Mexico, Poland, Japan
Stainless Steel Reducing Flange
Chile, Italy, Singapore, Iran, Canada, China
