Plate flange connection is the process of fixing two pipes, fittings, or equipment onto a flange plate, adding flange pads between the two flanges, and fastening them together with bolts to complete the connection. Some pipe fittings and equipment already come with flanges, which also belong to flange connections. Plate flange connection is an important connection method in pipeline construction. The flange connection is easy to use and can withstand high pressure. In industrial pipelines, flange connections are widely used. In the home, the diameter of the pipeline is small and it is low-pressure, so flange connections cannot be seen. If there are flanged pipes and equipment everywhere in a boiler room or production site.

Compared to neck flanges, flat flanges can be divided into carbon steel flat flanges, stainless steel flat flanges, and alloy steel flat flanges based on their materials. The structural forms of flanges include integral flanges and unit flanges.

Specification:

  1. Sizes:1/2”-120”;DN15-DN3000
  2. Materials:

Carbon steel flange (CS) : ASTM A105, ASTM A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70;

Stainless steel flange (SS) : ASTM A182 F304, 304L, F316, 316L, 1Cr18Ni9Ti, 0Cr18Ni9Ti, 321, 18-8;

Alloy flange (AS) : ASTM A182F1, F5a, F9, F11, F12, F22, F91, A182F12, A182F11, 16MnR, Cr5Mo, 12Cr1MoV, 15CrMo, 12Cr2Mo1, A335P22, ST45.8;

  1. Standards:

ASME B16.5;  HG20592;  DIN2527、2573、2627-2638、2673、2552、2653、2655、2656、2641、2642、2565-2569;  GOST12820;  JIS B2220

  1. Application:

Water treatment; Power plant accessories; Chemical engineering; Shipbuilding; Nuclear energy; Garbage disposal; natural gas; petroleum

16BAR
Bore Common Dimention Welding Neck Raised Face Driling Approx Weght(kg)
Norminal
Bore
d1 D WekingNeck t K T d3 s a d4 f Number of Bolt Daof Bot d2 DIN 5276 DIN 2632
Slop-on Bild
10A 14)  17.2* 90 14 14 60 35 25 1.8 4 6 40 2 4 M12(12) 14 0.63 0.58
28
15A 20)  21.3* 95 14 14 14 65 35 30 2 4 6 45 2 4 M12(12”) 14 0.72 0.648
32
20A 25  26.9* 105 16 16 16 75 38 38 2.3 4 6 58 2 4 M12(12″) 14 1.01 0.952
40
25A 30  33.7* 115 16 16 16 85 38 42 2.6 4 6 68 2 4 M12(12″) 14 1.23 1.14
45
32A 38 42.4 140 16 16 16 100 40 52 26 6 6 78 2 4 M16(58″) 18 1.8 1.69
56
40A 42.4 150 16 16 16 110 42 60 2.6 6 7 88 3 4 M16(58″) 18 2.09 1.86
44.5 48.3* 64
50A 57 165 18 18 18 125 45 72 2.9 6 8 102 3 4 M16(58”) 18 2.88 2.53
65A 60.3* 185 18 18 18 145 45 75 2.9 6 10 122 3 4 M16(58″) 18 3.66 3.06
80A 76.1 200 20 20 20 160 50 90 3.2 8 10 158 3 8 M16(587) 18 4.77 3.7
88.9* 105
100A 108 220 20 20 20 180 52 125 3.6 8 12 158 3 8 M16(58”) 18 5.65 4.62
114.3* 31
125A 133 250 22 22 22 210 55 50 40 8 12 188 3 8 M16(58”) 18 8.42 6.3
139.7* 156
150A 159 285 24 22 22 240 55 175 4.5 10 12 212 3 8 M2O(34″) 23 10.4 7.75
168.3* 184
200A 216 340 24 24 24 295 62 232 5.9 10 16 268 3 12 M20(34″) 23 16.1 11
219.1* 235
250A 267 405 26 26 26 355 70 285 6.3 12 16 320 3 12 M24(7/8″) 27 24.9 15.6
273* 292
300A 318 460 28 28 28 410 78 338 7.1 12 16 378 4 12 M24(7/8″) 27 35.1 22
323.9* 344
350A 3556* 368 520 30 30 30 470 82 390 8 12 16 438 4 16 M24(7/8”) 27 47.8 28.7
400A 406.4* 419 580 32 32 32 525 85 445 8 12 16 490 4 16 M27(1″) 30 63.5 36.3
500A 508*521 715 34 38 34 650 90 548 8 12 16 610 4 20 M30(11/8”) 33 102 59.3
600A 609.6* 840 36 40 770 95 652 8.8 12 18 725 5 20 M33(114″) 36
622
700A 7112 910 36 840 100 755 8.8 12 18 795 5 24 M33(1/4”) 36
720
800A 812.8* 820 1025 38 950 105 855 10 12 20 900 5 24 M36(138″) 39
900A 914.4* 1125 40 1050 110 955 10 12 20 1000 5 28 M36(138″) 39
920
1000A 1016* 1255 42 1170 120 1058 10 16 20 1115 5 28 M39(11/2″) 42
1020
NOTE*Out side diameter of pipe complied with ISO recommendation R64

 

 

 

 

 

 

 

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