
Plate Flange Overview
| Manufacturing Method | Forged, Plate and Cast |
|---|---|
| Standard | ASME B16.5 (Forged Plate Flange), ASME B16.47 (Large Diameter Plate Flange) |
| Sizes | NPS 1/2″ to NPS 24″ (150#, 300#, 400#, 600#, 900#, 1500#), NPS 1/2 – NPS 12″ (2500# Plain Flange) |
| Pressure Rating Class | ASME B16.5 Class 150, 300, 400, 600, 900, 1500, 2500 |
| Steel and Alloys | Duplex and Super Duplex, Stainless Steel, Copper, Copper Nickel, Carbon Steel, Nickel Alloy, Inconel, 16Mo3, Monel, Hastelloy, Titanium Plate Flanges |
Easiest Way to Find Stainless Steel Plate Flange Suppliers in UAE
ASME B16.5 Plate Flange Specification

Connection Types: Raised face (RF) Plate Flange, flat face (FF) Plate Flange, ring joint (RTJ) Plate Flange
Applications: High pressure and temperature
German Standard: Plate flange DIN 2576
EN 1092-1 Plate Flange: Type E/F/G/H, Type C (Tongue), Type A (FF), Type B (RF) and Type D (Groove)
Plate Flange Other Name: Flat Flange
SOUR Service Certification: NACE MR 01-75 / ISO 15156
Country of Origin: Plate Flange make in UAE, India, Korea, Netherlands, Europe, Japan and USA
Stainless Steel Plate Flanges as per ASTM A182/ SA 182
Carbon Steel Plate Flanges as per ASTM A105, A350, A694, A181
Duplex Steel Plate Flanges in UNS S31803, UNS S32205, UNS S32750, UNS S32760
Buy Directly from Plate Flange suppliers in UAE
100% Tested ANSI B16.5 Plate Flange with MTC EN 10204/3.1, ISO 10474
Verified SS Plain Flange Manufacturers in Dubai who Can Machine to Exact Specifications in Various Finishes as Per Standard ASME B16.5
Surface Finishes of ASTM B16.5 Pipe Plate Flange
- Smooth Finish
- Stock finish
- Spiral serrated
- Serrated finish
Plate Flanges Grades and ASTM Standard
| Stainless steel plate flanges Standards | Carbon steel plate flanges Standards |
|---|---|
| ASTM A240 304L | ASTM A572 Grade 70 |
| ASTM A240 304 | ASTM A572 Grade 50 |
| ASTM A240 317 | ASTM A572 Grade 60 |
| ASTM A240 347 | ASTM A572 Grade 65 |
| ASTM A240 904L | ASTM A515 Grade 60 |
| ASTM A240 316LN | ASTM A572 Grade 42 |
| ASTM A240 317L | – |
| ASTM A240 321 | – |
| ASTM A240 310 | – |
| ASTM A240 316L | – |
| ASTM A240 316 | – |
Buy Alloy Steel Plate Pipe Flange From Manufacturers Who Stand With You Before, During, And After Purchase
| Duplex Steel Plate Flange | Duplex 2205, UNS S31803 (DIN 1.4462), UNS S32205, Super Duplex 2507, UNS S32750 (DIN 1.4410), UNS S32760, ASTM A182 Grade F51, F52, F53, F54, F55, F57, F59, F60, F61, SMO 254, AL6xn, 6Mo, UNS S31254, DIN 1.4547 |
|---|---|
| Nickel Alloy Pn10 Plate Flange | ASTM B564 / ASME SB 564M, Nickel 200, Alloy 201, Nickel 205LC, Nickel 205 |
| Inconel Flat Plate Flange |
ASME SB 564 UNS N06600 (Alloy 600) W.Nr. 2.4816, UNS N06601 (Alloy 601) W.Nr. 2.4851, UNS N06617 (Alloy 617) W.Nr. 2.4663a, ASTM B564 UNS N06625 (Alloy 625) W.Nr. 2.4856, UNS N06626 (Alloy 625LCF) W.Nr. 2.4856, UNS N06686 (Alloy 686) W.Nr. 2.4606, UNS N06690 (Alloy 690) W.Nr. 2.4642, UNS N06693 (Alloy 693), UNS N09706 (Alloy 706), UNS N07718 (Alloy 718) W.Nr. 2.4668, UNS N07719 (Alloy 718SPF), UNS N07725 (Alloy 725), UNS N07740 (Alloy 740H), UNS N07750 (Alloy X-750) W.Nr. 2.4669, UNS N07751 (Alloy 751), UNS N07754 (Alloy MA754), UNS R30783 (Alloy 783) |
| Incoloy Slip on Plate Flange | ASTM B564 UNS N08825, UNS N09925 |
| Incoloy Alloy 20 Orifice Plate Flange | ASTM B462 UNS N08020 |
| Hastelloy Plate Flange | ASTM B564 UNS N10276 (Hastelloy C276), UNS N06022 (Hastelloy C22), UNS N06200 (C2000), UNS N06002 (X), UNS N10001 (B), UNS N10665 (B2), UNS N10675 (B3), UNS N06035 (G35), UNS N06985 (G3), UNS N06030 (G30), UNS N06455 (C4), UNS N07022 (C-22HS), UNS N10003 (N), UNS N06635 (S) |
| Monel Blind Plate Flange | ASTM B564 UNS N04400, UNS N05500 |
| SS 904L PN16 Plate Flange | UNS N08904 |
| Stainless Steel Reducing Plate Flange | ASTM A182 Gr 304, 304L, 316, 316L, 310, 310S, 317L, 316Ti, 321, 347, 347H, UNS S66286 |
| Carbon Steel 150# Plate Flange | ASTM A105, A105N, A350 LF2 (LTCS), LF3, AISI 4130, AISI 4140, AISI 4340, AISI 4145 |
| Carbon Steel ASTM A694 Flat Plate Flange | A694 F42, F46, F52, F60, F65, F706 |
| Alloy Steel Slip on Plate Flange | ASTM A182 F5, F9, F11, F22, F91 |
| Cupro Nickel Orifice Plate Flange | Copper Nickel 90/10 and Cuni 70/30 |
| Titanium Plate Flange | Titanium Gr 2, Gr 5 |
Threaded Plate Flat Flanges are Available in Class 150 – 2500. Get A Quick Quote From Genuine Manufacturers & Suppliers in Middle East Countries
Temperature and Pressure Rating of Carbon Steel Plate Flange
| Pressure in kPa & Temperature in -°C | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| -18⁰ to 120 | -50° to 232 | 250 | 275 | 300 | 325 | 350 | 375 | 400 | 425 | 450 | 475 | hydrostatic test pressure kPa (Maximum) |
| – | 700 | 650 | 600 | 570 | 550 | 500 | 450 | 400 | 350 | – | – | 1050 |
| 1200 | – | – | – | – | – | – | – | – | – | – | – | 1800 |
| – | 1400 | 1300 | 1200 | 1100 | 1000 | 950 | 900 | 800 | 700 | – | – | 2100 |
| – | 2100 | 2000 | 1800 | 1700 | 1600 | 1400 | 1300 | 1200 | 1100 | – | – | 3150 |
| – | 3500 | 3300 | 3100 | 2900 | 2600 | 2400 | 2000 | 2000 | 1700 | 1300 | 900 | 5250 |
| – | 4800 | 4600 | 4300 | 4000 | 3700 | 3400 | 3100 | 2700 | 2400 | 1900 | 1300 | 7200 |
| – | 6200 | 5900 | 5500 | 5100 | 4700 | 4300 | 3900 | 3500 | 3100 | 2400 | 1600 | 9300 |
| – | 8300 | 7900 | 7400 | 6800 | 6300 | 5800 | 5200 | 4700 | 4200 | 3200 | 2200 | 12450 |
| – | 12400 | 11800 | 11100 | 10300 | 9500 | 8700 | 7900 | 7100 | 6300 | 4800 | 3300 | 18600 |
| – | 19300 | 18400 | 17200 | 16000 | 14700 | 13500 | 12200 | 11000 | 9800 | 7500 | 5100 | 28950 |
Material Inspection Facility in Following Locations
| City | Region | Country |
|---|---|---|
| Dubai | Middle East | United Arab Emirates |
| Abu Dhabi | Middle East | United Arab Emirates |
| Dammam | Middle East | Saudi Arabia |
| Riyadh | Middle East | Saudi Arabia |
| Doha | Middle East | Qatar |
| Abuja | Africa | Nigeria |
| Kuwait City | Middle East | Kuwait |
| Jeddah | Middle East | Saudi Arabia |
| Cairo | MENA | Egypt |
| Casablanca | MENA | Morocco |
| Johannesburg | Africa | South Africa |
| Cape Town | Africa | South Africa |
| Lagos | Africa | Nigeria |
Steel Plate Flange Pressure Ratings
| Temperature °F | 2500# | 1500# | 900# | 600# | 400# | 300# | 150# |
|---|---|---|---|---|---|---|---|
| 1500 | 230 | 135 | 80 | 55 | 35 | 25 | 10 |
| 1450 | 285 | 170 | 105 | 70 | 45 | 35 | 15 |
| 1400 | 400 | 240 | 145 | 95 | 65 | 50 | 20 |
| 1300 | 715 | 430 | 255 | 170 | 115 | 85 | 20 |
| 1200 | 1285 | 770 | 465 | 310 | 205 | 155 | 20 |
| 1250 | 945 | 565 | 340 | 225 | 150 | 115 | 20 |
| 1350 | 515 | 310 | 185 | 125 | 80 | 60 | 20 |
| 1100 | 2145 | 1285 | 770 | 515 | 345 | 255 | 20 |
| 1150 | 1655 | 995 | 595 | 400 | 265 | 200 | 20 |
| 1000 | 2675 | 1605 | 965 | 640 | 430 | 320 | 20 |
| 1050 | 2570 | 1545 | 925 | 615 | 410 | 310 | 20 |
| 950 | 3180 | 1910 | 1145 | 765 | 510 | 380 | 35 |
| 900 | 3240 | 1945 | 1165 | 780 | 520 | 390 | 50 |
| 850 | 3300 | 1980 | 1190 | 790 | 530 | 395 | 65 |
| 800 | 3360 | 2015 | 1210 | 805 | 540 | 405 | 80 |
| 750 | 3460 | 2075 | 1245 | 830 | 555 | 415 | 95 |
| 700 | 3540 | 2125 | 1275 | 850 | 565 | 425 | 110 |
| 650 | 3580 | 2150 | 1290 | 860 | 575 | 430 | 125 |
| 600 | 3640 | 2185 | 1310 | 875 | 580 | 435 | 140 |
| 500 | 3880 | 2330 | 1395 | 930 | 620 | 465 | 170 |
| 400 | 4140 | 2485 | 1490 | 995 | 660 | 495 | 190 |
| 300 | 4500 | 2700 | 1620 | 1080 | 720 | 540 | 205 |
| 200 | 5000 | 3000 | 1800 | 1200 | 800 | 600 | 230 |
| -20 to 100 | 6000 | 3600 | 2160 | 1440 | 960 | 720 | 275 |
Check Duplex Steel Plain Flange, And ASTM A182 F304 Plate Slip on Flange Specification, Chemical Composition, And Equivalent
Chemical Composition of ASTM A182 F304 Stainless Steel Plate Flange
| Element | ASTM A182 F304 |
|---|---|
| Nickel | 8.0 – 10.50% |
| Sulfur | 0.030% |
| Phosphorus | 0.045% |
| Manganese | 2% |
| Silicon | 0.750% |
| Carbon | 0.080% |
| Chromium | 18.0 – 20.0% |
Explore Nearby Locations for the Quickest Delivery Options
| Muscat | Riyadh | Dubai | Ras Al Khaimah |
|---|---|---|---|
| Sharjah | Fujairah | Umm Al Quwain | Doha |
| Saudi Arabia | Al Jubail | Abu Dhabi | Ajman |
ASTM A182 F304 Stainless Steel Plate Flange Equivalent
| Grade | 304 | |
|---|---|---|
| UNS No | S30400 | |
| Old British | En | 58E |
| BS | 304S31 | |
| Japanese JIS | SUS 304 | |
| Euronorm | Name | X5CrNi18-10 |
| No | 1.4301 | |
| Swedish SS | 2332 | |
Advantages and Disadvantages of Plate Flange

- Flat plate Flange (FF)
- Raised face plate Flange (RF)
Call Now for the Clients List Based in Below Locations
| Middle East countries | Qatar, Lebanon, Bahrain, Saudi, Kuwait, UAE, Jordan, Iraq, Syria, Iran, Yemen |
|---|---|
| Africa | Nigeria, South Africa, Kenya, Morocco, Egypt, Tunisia, Algeria |
| MENA | Morocco, Libya, Algeria, Tunisia, Egypt, Israel, Palestine |

ANSI Plate Flange

B16.5 Plate Flange

AWWA Plate Flange

150# Plate Flange

Plate Flange

ANSI B16.5 Plate Flange
Mounting Pattern of ASME B16.5 Plate Flange
- GN/ PN10 (DN 15 to DN 700)
- GN/ PN16 (DN 15 to DN 175)
- GN/ PN25-40 (DN 15 to DN 40)
Class 150 Plate Flange Dimensions

| NPS | Kilogram | J | k | Holes | l | D | b | g | m |
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 0,400 | 22.3 | 60.3 | 4 | 15.9 | 88.9 | 11.1 | 34.9 | 30.2 |
| 3/4 | 0.700 | 27.7 | 69.8 | 4 | 15.9 | 98.4 | 12.7 | 42.9 | 38.1 |
| 1 | 0.800 | 34.5 | 79.4 | 4 | 15.9 | 107.9 | 14.3 | 50.8 | 49.2 |
| 1 1/4 | 1.100 | 43.2 | 88.9 | 4 | 15.9 | 117.5 | 15.9 | 63.5 | 58.8 |
| 1 1/2 | 1.400 | 49.5 | 98.4 | 4 | 15.9 | 127.0 | 17.5 | 73.0 | 65.1 |
| 2 | 2.200 | 62.0 | 120.6 | 4 | 19.0 | 152.4 | 19.0 | 92.1 | 77.8 |
| 2 1/2 | 3.600 | 74.7 | 139.7 | 4 | 19.0 | 177.8 | 22.2 | 104.8 | 90.5 |
| 3 | 4.100 | 90.7 | 152.4 | 4 | 19.0 | 190.5 | 23.8 | 127.0 | 107.9 |
| 3 1/2 | 5.200 | 103.4 | 177.8 | 8 | 19.0 | 215.9 | 23.8 | 139.7 | 122.2 |
| 4 | 5.600 | 116.1 | 190.5 | 8 | 19.0 | 228.6 | 23.8 | 157.2 | 134.9 |
| 5 | 6.300 | 143.8 | 215.9 | 8 | 22.2 | 254.0 | 23.8 | 185.7 | 163.6 |
| 6 | 7.500 | 170.7 | 241.3 | 8 | 22.2 | 279.4 | 25.4 | 215.9 | 192.1 |
| 8 | 12.600 | 221.5 | 298.4 | 8 | 22.2 | 342.9 | 28.6 | 269.9 | 246.1 |
| 10 | 18.500 | 276.3 | 361.9 | 12 | 25.4 | 406.4 | 30.2 | 323.8 | 304.8 |
| 12 | 28.000 | 431.8 | 12 | 25.5 | 482.6 | 31.7 | 381.0 | 365.1 | 327.1 |
| 14 | 36.000 | 359.1 | 476.2 | 12 | 28.6 | 533.4 | 34.9 | 412.7 | 400.0 |
| 16 | 46.000 | 410.5 | 539.7 | 16 | 28.6 | 596.9 | 36.5 | 469.9 | 457.2 |
| 18 | 50.000 | 461.8 | 577.8 | 16 | 31.7 | 635.0 | 39.7 | 533.4 | 504.8 |
| 20 | 64.000 | 513.1 | 635.0 | 20 | 31.7 | 698.5 | 42.9 | 584.2 | 558.8 |
| 22 | 72.000 | 564.4 | 692.1 | 20 | 34.9 | 749.3 | 46.0 | 641.2 | 609.6 |
| 24 | 615.9 | 749.3 | 20 | 34.9 | 89.000 | 812.8 | 47.6 | 692.1 | 663.6 |
See Where You Can Find Material Ex Stock
| Country | Cities |
|---|---|
| Netherlands | The Hague |
| Belgium | Meeuwen-Gruitrode |
| Netherlands | Amsterdam |
| Belgium | Antwerp |
| Netherlands | Haarlem |
| Belgium | Brussels |
| Belgium | Seraing |
| Belgium | Ghent |
| Belgium | Leuven |
| Netherlands | Eindhoven |
| Belgium | Westerlo |
| Netherlands | Rotterdam |
What are the Function of Plate Flange?
The functions of plate flanges are given below:
- Pipe Connection
- Alignment of Piping Components
- Leak Prevention
- Easy Assembly and Disassembly
- Strength and Support
Class 300 Plate Flange Dimensions

| NPS | Kilogram | J | k | Holes | l | D | b | g | m |
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 0.700 | 22.3 | 66.7 | 4 | 15.9 | 95.6 | 14.3 | 34.9 | 38.1 |
| 3/4 | 1.100 | 27.7 | 82.5 | 4 | 19.0 | 117.5 | 15.9 | 42.9 | 47.6 |
| 1 | 1.400 | 34.5 | 88.9 | 4 | 19.0 | 123.8 | 17.5 | 50.8 | 54.0 |
| 1 1/4 | 1.800 | 43.2 | 98.4 | 4 | 19.0 | 133.3 | 19.0 | 63.5 | 63.5 |
| 1 1/2 | 2.600 | 49.5 | 114.3 | 4 | 22.2 | 155.6 | 20.6 | 73.0 | 69.8 |
| 2 | 3.400 | 62.0 | 127.0 | 8 | 19.0 | 165.1 | 22.2 | 92.1 | 84.1 |
| 2 1/2 | 4.400 | 74.7 | 149.2 | 8 | 22.2 | 190.5 | 25.4 | 104.8 | 100.0 |
| 3 | 6.100 | 90.7 | 168.3 | 8 | 22.2 | 209.5 | 28.6 | 127.0 | 117.5 |
| 3 1/2 | 7.500 | 103.4 | 184.1 | 8 | 22.2 | 228.6 | 30.2 | 139.7 | 133.3 |
| 4 | 10.100 | 116.1 | 200.0 | 8 | 22.2 | 254.0 | 31.7 | 157.2 | 146.0 |
| 5 | 12.500 | 143.8 | 234.9 | 8 | 22.2 | 279.4 | 34.9 | 185.7 | 177.8 |
| 6 | 14.100 | 170.7 | 269.9 | 12 | 22.2 | 317.5 | 36.5 | 215.9 | 206.4 |
| 8 | 24.800 | 221.5 | 330.2 | 12 | 25.4 | 381.0 | 41.3 | 269.9 | 260.3 |
| 10 | 37.100 | 276.3 | 387.3 | 16 | 28.6 | 444.5 | 47.6 | 323.8 | 320.7 |
| 12 | 50.000 | 327.1 | 450.8 | 16 | 31.7 | 520.7 | 50.8 | 381.0 | 374.6 |
| 14 | 70.000 | 359.1 | 514.3 | 20 | 31.7 | 584.2 | 54.0 | 412.7 | 425.4 |
| 16 | 90.000 | 410.5 | 571.5 | 20 | 34.9 | 647.7 | 57.1 | 469.9 | 482.6 |
| 18 | 112.000 | 461.8 | 628.6 | 24 | 34.9 | 711.2 | 60.3 | 533.4 | 533.4 |
| 20 | 133.000 | 513.1 | 685.8 | 24 | 34.9 | 774.7 | 63.5 | 584.2 | 584.2 |
| 22 | 197.000 | 564.4 | 742.9 | 24 | 41.3 | 838.2 | 66.7 | 641.2 | 641.2 |
| 24 | 208.000 | 615.9 | 812.8 | 24 | 41.3 | 914.4 | 69.8 | 692.1 | 701.7 |
Class 600 Plate Flange Dimensions

| NPS | Kilogram | J | k | Holes | l | D | b | g | m |
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 0.800 | 22.3 | 66.7 | 4 | 15.9 | 95.2 | 14.3 | 34.9 | 38.1 |
| 3/4 | 1.400 | 27.7 | 82.5 | 4 | 19.0 | 117.5 | 15.9 | 42.9 | 47.6 |
| 1 | 1.600 | 34.5 | 88.9 | 4 | 19.0 | 123.8 | 17.5 | 50.8 | 54.0 |
| 1 1/4 | 2.100 | 43.2 | 98.4 | 4 | 19.0 | 133.3 | 20.6 | 63.5 | 63.5 |
| 1 1/2 | 3.100 | 49.5 | 114.3 | 4 | 22.2 | 155.6 | 22.2 | 73.0 | 69.8 |
| 2 | 3.700 | 62.0 | 127.0 | 8 | 19.0 | 165.1 | 25.4 | 92.1 | 84.1 |
| 2 1/2 | 5.400 | 74.7 | 149.2 | 8 | 22.2 | 190.5 | 28.6 | 104.8 | 100.0 |
| 3 | 7.300 | 90.7 | 168.3 | 8 | 22.2 | 209.5 | 31.7 | 127.0 | 117.5 |
| 3 1/2 | 8.900 | 103.4 | 184.1 | 8 | 25.4 | 228.6 | 34.9 | 139.7 | 133.3 |
| 4 | 11.800 | 116.1 | 215.9 | 8 | 25.4 | 273.0 | 38.1 | 157.2 | 152.4 |
| 5 | 24.500 | 143.8 | 266.7 | 8 | 28.6 | 330.2 | 44.4 | 185.7 | 188.9 |
| 6 | 29.500 | 170.7 | 292.1 | 12 | 28.6 | 355.6 | 47.6 | 215.9 | 222.2 |
| 8 | 43.000 | 221.5 | 349.2 | 12 | 31.7 | 419.1 | 55.6 | 269.9 | 273.0 |
| 10 | 70.000 | 276.3 | 431.8 | 16 | 34.9 | 508.0 | 63.5 | 323.8 | 342.8 |
| 12 | 86.000 | 327.1 | 488.9 | 20 | 34.9 | 558.8 | 66.7 | 381.0 | 400.0 |
| 14 | 100.000 | 359.1 | 527.0 | 20 | 38.1 | 603.2 | 69.8 | 412.7 | 431.8 |
| 16 | 142.000 | 410.5 | 603.2 | 20 | 41.3 | 685.8 | 76.2 | 469.9 | 495.3 |
| 18 | 175.000 | 461.8 | 654.0 | 20 | 44.4 | 742.9 | 82.5 | 533.4 | 546.1 |
| 20 | 232.000 | 513.1 | 723.9 | 24 | 44.4 | 812.8 | 88.9 | 584.2 | 609.6 |
| 22 | 292.000 | 564.4 | 777.9 | 24 | 47.6 | 869.9 | 95.2 | 641.2 | 666.7 |
| 24 | 330.000 | 615.9 | 838.2 | 24 | 50.8 | 939.8 | 101.6 | 692.1 | 717.5 |
EN 1092-1 Type 01 Plate Flanges Weight
| DN | PN6 KG | PN 10 KG | PN 16 KG | PN 25 KG |
|---|---|---|---|---|
| 10 | 0.356 | 0.604 | 0.604 | 0.604 |
| 15 | 0.402 | 0.670 | 0.670 | 0.670 |
| 20 | 0.592 | 0.936 | 0.936 | 0.936 |
| 25 | 0.719 | 1.11 | 1.11 | 1.11 |
| 32 | 1.16 | 1.82 | 1.82 | 1.82 |
| 40 | 1.35 | 2.08 | 2.08 | 2.08 |
| 50 | 1.48 | 2.73 | 2.73 | 2.73 |
| 65 | 1.86 | 3.16 | 3.16 | 3.16 |
| 80 | 2.95 | 3.60 | 3.60 | 3.60 |
| 100 | 3.26 | 4.39 | 4.39 | 4.39 |
| 125 | 4.31 | 5.41 | 5.41 | 5.41 |
| 150 | 4.76 | 7.14 | 7.14 | 7.14 |
| 200 | 6.88 | 9.27 | 9.73 | 14.3 |
| 250 | 8.92 | 11.8 | 14.2 | 20.1 |
| 300 | 11.9 | 13.6 | 19.0 | 26.6 |
| 350 | 16.8 | 21.8 | 28.2 | 41.8 |
| 400 | 19.8 | 27.5 | 35.9 | 57.6 |
| 450 | 24.6 | 33.6 | 46.1 | 69.8 |
| 500 | 26.4 | 40.2 | 64.0 | 87.0 |
| 600 | 34.8 | 54.5 | 102 | 127 |
ANSI 900 Plate Flange Dimensions

| Nominal Pipe Size | Diameter of Hub at Bevel | O.D of Flange | Radius of Fillet | Diameter of Raised Face | Diameter of Hub at Base | Diameter or Bore Lap Joint | Diameter or Bore plate Flange |
|---|---|---|---|---|---|---|---|
| O | r | R | X | Y | B | H | |
| 24 | 24.00 | 41 | 1/2 | 27-1/4 | 29-1/2 | 10- | 24.25 |
| 20 | 20.00 | 33-3/4 | 1/2 | 23 | 24-1/2 | 8-1/4 | 20.20 |
| 18 | 18.00 | 31 | 1/2 | 21 | 22-1/4 | 7-1/2 | 18.18 |
| 16 | 16.00 | 27-3/4 | 1/2 | 18-1/2 | 20 | 6-1/2 | 16.16 |
| 14 | 14.00 | 25-1/4 | 1/2 | 16-1/4 | 17-3/4 | 6-1/8 | 14.14 |
| 12 | 12.75 | 24 | 1/2 | 15 | 16-1/2 | 5-5/8 | 12.88 |
| 10 | 10.75 | 21-1/2 | 1/2 | 12-3/4 | 14-1/2 | 5 | 10.88 |
| 8 | 8.63 | 18-1/2 | 1/2 | 10-5/8 | 11-3/4 | 4-1/2 | 8.72 |
| 6 | 6.63 | 15 | 1/2 | 8-1/2 | 9-1/4 | 3-3/8 | 6.72 |
| 5 | 5.56 | 13-3/4 | 7/16 | 7-5/16 | 7-1/2 | 3-1/8 | 5.66 |
| 4 | 4.50 | 11-1/2 | 7/16 | 6-3/16 | 6-1/4 | 2-3/4 | 4.57 |
| 3 | 3.50 | 9-1/2 | 3/8 | 5 | 5 | 2-1/8 | 3.57 |
| 2 | 2.38 | 8-1/2 | 5/16 | 3-5/8 | 4-1/8 | 2-1/4 | 2.44 |
| 2-1/2 | 2.88 | 9-5/8 | 5/16 | 4-1/8 | 4-7/8 | 2-1/2 | 2.94 |
| 1-1/4 | 1.66 | 6-1/4 | 3/16 | 2-1/2 | 2-1/2 | 1-5/8 | 1.70 |
| 1-1/2 | 1.90 | 7 | 1/4 | 2-7/8 | 2-3/4 | 1-3/4 | 1.95 |
| 1 | 1.32 | 5-7/8 | 1/8 | 2 | 2-1/16 | 1-5/8 | 1.36 |
| 1/2 | .84 | 4-3/4 | 1/8 | 1-3/8 | 1-1/2 | 1-1/4 | .88 |
What are the Uses and Applications of Stainless Steel Plain Flange?
- Pipe connections
- Pump and valve joints
- Food processing lines
- Chemical plants
- Pharmaceutical systems
- Water pipelines
- Marine piping

| NPS | Dia of Hub at Bevel | O.D of Flange | Thk of Flange | Dia of Plate Flange | Length |
|---|---|---|---|---|---|
| O | Q | R | W | Y | |
| 24 | 1/2 | 46 | 8 | 27-1/4 | 13 |
| 20 | 1/2 | 38-3/4 | 7 | 23 | 11-1/2 |
| 18 | 1/2 | 36 | 6-3/8 | 21 | 10-7/8 |
| 16 | 1/2 | 32-1/2 | 5-3/4 | 18-1/2 | 10-1/4 |
| 14 | 1/2 | 29-1/2 | 5-1/4 | 16-1/4 | 9-1/2 |
| 12 | 12.75 | 26-1/2 | 4-7/8 | 15 | 7-1/8 |
| 10 | 10.75 | 23 | 4-1/4 | 12-3/4 | 6-1/4 |
| 8 | 8.63 | 19 | 3-5/8 | 10-5/8 | 5-5/8 |
| 6 | 6.63 | 15-1/2 | 3-1/4 | 8-1/2 | 4-11/16 |
| 5 | 5.56 | 14-3/4 | 2-7/8 | 7-5/16 | 4-1/8 |
| 4 | 4.50 | 12-1/4 | 2-1/8 | 6-3/16 | 3-9/16 |
| 3 | 3.50 | 10-1/2 | 1-7/8 | 5 | 2-7/8 |
| 2 | 2.38 | 8-1/2 | 1-1/2 | 3-5/8 | 2-1/4 |
| 2-1/2 | 2.88 | 9-5/8 | 1-5/8 | 4-1/8 | 2-1/2 |
| 1 | 1.32 | 5-7/8 | 1-1/8 | 2 | 1-5/8 |
| 1-1/4 | 1.66 | 6-1/4 | 1-1/8 | 2-1/2 | 1-5/8 |
| 1-1/2 | 1.90 | 7 | 1-1/4 | 2-7/8 | 1-3/4 |
| 1/2 | .84 | 4-3/4 | 7/8 | 1-3/8 | 1-1/4 |
Plate flanges are flat metal discs used to join pipes, valves, or equipment by welding or bolting in a piping system
Plate Flange Manufacturing Process

How to Test the Loose Plate Flange?
- Fit up test
- Hydrostatic test
- Pneumatic test
- Dye penetrant test
- Surface flatness test
- Ultrasonic test
Stainless Steel Plate Flange Hydrostatic Test Pressures
| ASTM Specification | Test Pressure (psig) | ||||||
|---|---|---|---|---|---|---|---|
| 2500# | 1500# | 900# | 600# | 400# | 300# | 150# | |
|
9000 | 5400 | 3250 | 2175 | 1450 | 1100 | 425 |
Readily Available Stock Of Plate Flange


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