Flat Flanges
Flat Flanges Manufacturer
The Stainless Steel Flat Face Flanges that we provide are used to connect large and small pipes while also lowering vibration and noise levels. Our skilled staff enable us to produce top-quality goods like these Hastelloy Stainless Steel Flat Face Flanges, which are made to guarantee the happiness of our customers. We constantly pay attention to the quality of every single one of our Titanium Alloy Stainless Steel Flat Face Flanges and provide them at rates that are among the best in the business.
JK Engineering Works is one of the established manufacturers, supplies and exports a wide variety of flat face pipe flanges that are heat treated and welded with filler metal in accordance with specifications. These Carbon Steel Flat Face Flanges have an external thread on the pipe that matches the threading inside the bore. One of the most popular precipitation hardening grades, alloy steel flat face flanges have good corrosion resistance, toughness, high hardness, and strength. Our Duplex Steel Flat Face Flanges are produced by top industry professionals using cutting-edge technology and the highest-quality raw materials.
We at JK Engineering Works would like to take the opportunity to introduce as a leading Industrial Carbon Steel Flat Flanges Exporter in India. Stainless Steel Flat Face Flanges are stocked or available in the following range of materials and sizes for the oil, gas, petrochemical and allied industries. Pipes with Flat flange can be assembled and disassembled easily.
Flat Flanges Specification
ASME B16.5 Flat Flanges Size Chart | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
Flat Flanges Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
Flat Flanges Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Flat Flanges |
Flat Flanges Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 Flat Flanges |
JIS | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K Flat Flanges |
UNI | 6Bar 10Bar 16Bar 25Bar 40Bar Flat Flanges |
EN | 6Bar 10Bar 16Bar 25Bar 40Bar Flat Flanges |
Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Flat Flanges |
Most common types of Flat Flanges | Forged / Threaded / Screwed / Plate |
Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
Production technique |
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Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue &Groove, Groove |
Special design | As per your drawing
AS, ANSI, BS, DIN and JIS |
Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
Equipment | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc |
Origin | Indian / West Europe / Japan / USA / Korean |
Manufacturer of | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. Flat Flanges: -BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange
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Flat Flanges Uses & application |
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Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 |
Flat Flanges Material
Prestige quality Flat Flanges manufacturers in India offer these Carbon Steel Flat Flanges in DIN, EN, BS, ISO, JIS or ANSI standard.
Carbon Steel Flat Flanges | ASTM/ASME A/SA105 A/SA105N & A/SA216-WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80) |
Stainless Steel Flat Flanges | ASTM/ASME A/SA182 F304, F304L, F316, F316L, ASTM/ASME A/SA351 CF8, CF3, CF8M, CF3M, DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404, DIN 1.4308, DIN 1.4408, DIN 1.4306, DIN 1.4409 |
Alloy Steel Flat Flanges | ASTM A182 / ASME SA182 F5, F9, F11, F12, F22, F91 |
Titanium Flat Flanges | ASTM B381 / ASME SB381, Titanium Gr. 1, Titanium Gr. 2, Titanium Gr. 4, Titanium Gr. 5, Titanium Gr. 7 ASTM R50250/GR.1 | R50400/GR.2 | R50550/GR.3 | R50700/GR.4 | GR.6 |R52400/GR.7 | R53400/GR.12 | R56320/GR.9 |R56400/GR.5 |
Copper Flat Flanges | T1, T2, C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910,C10920, TP1, TP2, C10930, C11000, C11300, C11400, C11500, C11600, C12000,C12200, C12300, TU1, TU2, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200, C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C68700, C70400, C70600, C70620, C71000, C71500, C71520, C71640, etc |
Copper Nickel Flat Flanges | ASTM / ASME SB 61 / 62 / 151 / 152, Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640 |
Brass Flat Flanges | 3602 / 2604 / H59 / H62 / etc. |
Inconel Flat Flanges | ASTM B564 / ASME SB564, Inconel 600, 601, 625, 718, 783, 690, x750 Flat Flanges |
Hastelloy Flat Flanges | ASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X Flanges |
Monel Flat Flanges | ASTM B564 / ASME SB564, Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500) |
Alloy 20 Flat Flanges | ASTM B462 / ASME SB462, Carpenter® 20 Alloy, Alloy 20Cb-3 |
Aluminium Flat Flanges | 5052 /6061/ 6063 / 2017 / 7075 / etc. |
Nickel Flat Flanges | ASTM B564 / ASME SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205LC |
Duplex Flat Flanges | S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61 |
Super Duplex Flat Flanges | S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61 |
Incoloy Flat Flanges | ASTM B564 / ASME SB564, Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925 Flanges |
254 Smo Flat Flanges | ASTM A182 / ASME SA182, SMO 254/6Mo, UNS S31254, DIN 1.4547 |
Nimonic Flat Flanges | Nimonic 75, Nimonic 80A, Nimonic 90 |
Other Flat Flanges material | Tin bronze, Alumunum bronze, Lead bronze |
Flat Flanges Dimensions
ANSI/ASME/ASA B16.5 150lb/sq.in. Flange PlateRF
ø | D | b | g | m | J | k | Holes | l | Kg. |
1/2″ | 88,9 | 11,1 | 34,9 | 30,2 | 22,3 | 60,3 | 4 | 15,9 | 0,400 |
3/4″ | 98,4 | 12,7 | 42,9 | 38,1 | 27,7 | 69,8 | 4 | 15,9 | 0,700 |
1″ | 107,9 | 14,3 | 50,8 | 49,2 | 34,5 | 79,4 | 4 | 15,9 | 0,800 |
1 1/4″ | 117,5 | 15,9 | 63,5 | 58,8 | 43,2 | 88,9 | 4 | 15,9 | 1,100 |
1 1/2″ | 127,0 | 17,5 | 73,0 | 65,1 | 49,5 | 98,4 | 4 | 15,9 | 1,400 |
2″ | 152,4 | 19,0 | 92,1 | 77,8 | 62,0 | 120,6 | 4 | 19,0 | 2,200 |
2 1/2″ | 177,8 | 22,2 | 104,8 | 90,5 | 74,7 | 139,7 | 4 | 19,0 | 3,600 |
3″ | 190,5 | 23,8 | 127,0 | 107,9 | 90,7 | 152,4 | 4 | 19,0 | 4,100 |
3 1/2″ | 215,9 | 23,8 | 139,7 | 122,2 | 103,4 | 177,8 | 8 | 19,0 | 5,200 |
4″ | 228,6 | 23,8 | 157,2 | 134,9 | 116,1 | 190,5 | 8 | 19,0 | 5,600 |
5″ | 254,0 | 23,8 | 185,7 | 163,6 | 143,8 | 215,9 | 8 | 22,2 | 6,300 |
6″ | 279,4 | 25,4 | 215,9 | 192,1 | 170,7 | 241,3 | 8 | 22,2 | 7,500 |
8″ | 342,9 | 28,6 | 269,9 | 246,1 | 221,5 | 298,4 | 8 | 22,2 | 12,600 |
10″ | 406,4 | 30,2 | 323,8 | 304,8 | 276,3 | 361,9 | 12 | 25,4 | 18,500 |
12″ | 482,6 | 31,7 | 381,0 | 365,1 | 327,1 | 431,8 | 12 | 25,5 | 28,000 |
14″ | 533,4 | 34,9 | 412,7 | 400,0 | 359,1 | 476,2 | 12 | 28,6 | 36,000 |
16″ | 596,9 | 36,5 | 469,9 | 457,2 | 410,5 | 539,7 | 16 | 28,6 | 46,000 |
18″ | 635,0 | 39,7 | 533,4 | 504,8 | 461,8 | 577,8 | 16 | 31,7 | 50,000 |
20″ | 698,5 | 42,9 | 584,2 | 558,8 | 513,1 | 635,0 | 20 | 31,7 | 64,000 |
22″ | 749,3 | 46,0 | 641,2 | 609,6 | 564,4 | 692,1 | 20 | 34,9 | 72,000 |
24″ | 812,8 | 47,6 | 692,1 | 663,6 | 615,9 | 749,3 | 20 | 34,9 | 89,000 |
ANSI/ASME/ASA B16.5 300lb/sq.in. Flange Plate RF
ø | D | b | g | m | J | k | Holes | l | Kg. |
1/2″ | 95,6 | 14,3 | 34,9 | 38,1 | 22,3 | 66,7 | 4 | 15,9 | 0,700 |
3/4″ | 117,5 | 15,9 | 42,9 | 47,6 | 27,7 | 82,5 | 4 | 19,0 | 1,100 |
1″ | 123,8 | 17,5 | 50,8 | 54,0 | 34,5 | 88,9 | 4 | 19,0 | 1,400 |
1 1/4″ | 133,3 | 19,0 | 63,5 | 63,5 | 43,2 | 98,4 | 4 | 19,0 | 1,800 |
1 1/2″ | 155,6 | 20,6 | 73,0 | 69,8 | 49,5 | 114,3 | 4 | 22,2 | 2,600 |
2″ | 165,1 | 22,2 | 92,1 | 84,1 | 62,0 | 127,0 | 8 | 19,0 | 3,400 |
2 1/2″ | 190,5 | 25,4 | 104,8 | 100,0 | 74,7 | 149,2 | 8 | 22,2 | 4,400 |
3″ | 209,5 | 28,6 | 127,0 | 117,5 | 90,7 | 168,3 | 8 | 22,2 | 6,100 |
3 1/2″ | 228,6 | 30,2 | 139,7 | 133,3 | 103,4 | 184,1 | 8 | 22,2 | 7,500 |
4″ | 254,0 | 31,7 | 157,2 | 146,0 | 116,1 | 200,0 | 8 | 22,2 | 10,100 |
5″ | 279,4 | 34,9 | 185,7 | 177,8 | 143,8 | 234,9 | 8 | 22,2 | 12,500 |
6″ | 317,5 | 36,5 | 215,9 | 206,4 | 170,7 | 269,9 | 12 | 22,2 | 14,100 |
8″ | 381,0 | 41,3 | 269,9 | 260,3 | 221,5 | 330,2 | 12 | 25,4 | 24,800 |
10″ | 444,5 | 47,6 | 323,8 | 320,7 | 276,3 | 387,3 | 16 | 28,6 | 37,100 |
12″ | 520,7 | 50,8 | 381,0 | 374,6 | 327,1 | 450,8 | 16 | 31,7 | 50,000 |
14″ | 584,2 | 54,0 | 412,7 | 425,4 | 359,1 | 514,3 | 20 | 31,7 | 70,000 |
16″ | 647,7 | 57,1 | 469,9 | 482,6 | 410,5 | 571,5 | 20 | 34,9 | 90,000 |
18″ | 711,2 | 60,3 | 533,4 | 533,4 | 461,8 | 628,6 | 24 | 34,9 | 112,000 |
20″ | 774,7 | 63,5 | 584,2 | 584,2 | 513,1 | 685,8 | 24 | 34,9 | 133,000 |
22″ | 838,2 | 66,7 | 641,2 | 641,2 | 564,4 | 742,9 | 24 | 41,3 | 197,000 |
24″ | 914,4 | 69,8 | 692,1 | 701,7 | 615,9 | 812,8 | 24 | 41,3 | 208,000 |
ANSI/ASME/ASA B16.5 600lb/sq.in. FlangePlate RF
ø | D | b | g | m | J | k | Holes | l | Kg. |
1/2″ | 95,2 | 14,3 | 34,9 | 38,1 | 22,3 | 66,7 | 4 | 15,9 | 0,800 |
3/4″ | 117,5 | 15,9 | 42,9 | 47,6 | 27,7 | 82,5 | 4 | 19,0 | 1,400 |
1″ | 123,8 | 17,5 | 50,8 | 54,0 | 34,5 | 88,9 | 4 | 19,0 | 1,600 |
1 1/4″ | 133,3 | 20,6 | 63,5 | 63,5 | 43,2 | 98,4 | 4 | 19,0 | 2,100 |
1 1/2″ | 155,6 | 22,2 | 73,0 | 69,8 | 49,5 | 114,3 | 4 | 22,2 | 3,100 |
2″ | 165,1 | 25,4 | 92,1 | 84,1 | 62,0 | 127,0 | 8 | 19,0 | 3,700 |
2 1/2″ | 190,5 | 28,6 | 104,8 | 100,0 | 74,7 | 149,2 | 8 | 22,2 | 5,400 |
3″ | 209,5 | 31,7 | 127,0 | 117,5 | 90,7 | 168,3 | 8 | 22,2 | 7,300 |
3 1/2″ | 228,6 | 34,9 | 139,7 | 133,3 | 103,4 | 184,1 | 8 | 25,4 | 8,900 |
4″ | 273,0 | 38,1 | 157,2 | 152,4 | 116,1 | 215,9 | 8 | 25,4 | 11,800 |
5″ | 330,2 | 44,4 | 185,7 | 188,9 | 143,8 | 266,7 | 8 | 28,6 | 24,500 |
6″ | 355,6 | 47,6 | 215,9 | 222,2 | 170,7 | 292,1 | 12 | 28,6 | 29,500 |
8″ | 419,1 | 55,6 | 269,9 | 273,0 | 221,5 | 349,2 | 12 | 31,7 | 43,000 |
10″ | 508,0 | 63,5 | 323,8 | 342,8 | 276,3 | 431,8 | 16 | 34,9 | 70,000 |
12″ | 558,8 | 66,7 | 381,0 | 400,0 | 327,1 | 488,9 | 20 | 34,9 | 86,000 |
14″ | 603,2 | 69,8 | 412,7 | 431,8 | 359,1 | 527,0 | 20 | 38,1 | 100,000 |
16″ | 685,8 | 76,2 | 469,9 | 495,3 | 410,5 | 603,2 | 20 | 41,3 | 142,000 |
18″ | 742,9 | 82,5 | 533,4 | 546,1 | 461,8 | 654,0 | 20 | 44,4 | 175,000 |
20″ | 812,8 | 88,9 | 584,2 | 609,6 | 513,1 | 723,9 | 24 | 44,4 | 232,000 |
22″ | 869,9 | 95,2 | 641,2 | 666,7 | 564,4 | 777,9 | 24 | 47,6 | 292,000 |
24″ | 939,8 | 101,6 | 692,1 | 717,5 | 615,9 | 838,2 | 24 | 50,8 | 330,000 |
Weight Chart
Nominal Pipe Size | Diameter of Pipe | Flange I.D | No. of holes | Flange Dia | Thk of Flange | Dia of Bolt Circle | Dia of Bolt Holes | Approx.Weight | |
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 |
ASTM Specification of Flat Flange
Carbon Steel Flat Flange
- A105 Flat Flange
Alloy Steel High-Temp Flat Flange
- A182 Gr F1 Flat Flange
- A182 Gr F11 Flat Flange
- A182 Gr F12 Flat Flange
- A182 Gr F22 Flat Flange
- A182 Gr F5 Flat Flange
- A182 Gr F9 Flat Flange
Alloy Steel Low-Temp Flat Flange
- A350 Gr LF2 Flat Flange
- A350 Gr LF3 Flat Flange
Austenitic Stainless Steel Flat Flange
- A182 Gr F304 Flat Flange
- A182 Gr F316 Flat Flange
- A182 Gr F321 Flat Flange
- A182 Gr F347 Flat Flange
- A182 Gr F304L Flat Flange
- A182 Gr F316L Flat Flange
- A182 Gr F317 Flat Flange
- A182 Gr F317L Flat Flange
- A182 Gr F321 Flat Flange
- A182 Gr F310 Flat Flange
- A182 Gr 347 Flat Flange
Nickel Alloy Flat Flange
- ASTM B564 Flat Flange
- astm b564 uns n06600 Flat Flange
- astm b564 uns n06625 Flat Flange
- astm b564 uns no4400 Flat Flange
- astm b564 uns n08810 Flat Flange
- astm b564 uns n08811 Flat Flange
- astm b564 uns n08825 Flat Flange
- astm b564 uns n04400 Flat Flange
- astm b564 uns n10276 Flat Flange
- astm b564 uns n10665 Flat Flange
Titanium Flat Flange
- astm b381 grade f2 Flat Flange
- astm b381 f5 Flat Flange
- astm b381 f3 Flat Flange
- astm b381 f12 Flat Flange
- astm b381 f7 Flat Flange
- Other grades: ASTM B381 F1, F2, F2H, F3, F4, F5, F6, F7, F7H, F9, F10, F11, F12, F13, F14, F15, F16, F16H, F17, F18, F19, F20, F21, F23, F24, F25, F26 , F26H, F27, F28, F29, F30, F31, F32, F33, F34, F35, F36, F37, F38 Flat Flange
Manufacturing Stainless Steel Flat Flanges in India, JK ENGG. WORKS holds a wide range of Alloy Steel Flat Flanges in all Thickness, stock for immediate despatch throughout India & globally.
Type of Flat Flanges we produce:
Flat Class 150 Flange | Flat Threaded Flange |
Flat Class 300 Flange | Flat With 1/2 Npt Flange |
Flat Class 1500 Flange | Flat With Threaded Hole Flange |
Flat Class 600 Flange | Flat Weight 150# Flange |
Flat Class 900 Flange | Flat Rtj 1500 Flange |
Flat Class 2500 Flange | Flat Ring Type Joint Flange |
Flat Pn16 Flange | Flat Flat Face Flange |
Flat Pn10 Flange | Flat Slip On Flange |
Flat Pn40 Flange | Flat Rtj 900 Flange |
Flat Pn 160 Flange | Flat Rtj Flange |
Flat Pn 64 Flange | Flat Npt Flange |
Flat Dn150 Pn16 Flange | Flat Jis 5k Flange |
Flat Din 2527 Flange | Flat Jis B2220 Flange |
Flat Din En 1092-1 Flange | Flat Jis 10k Flange |
Flat Din 2633 Flange | Kf Flat Flange |
Flat Din 2576 Flange | Flat B16.47 Flange |
Flat Asme B16.5 Class 300 Flange | Flat Ansi B16.5 150 Flange |