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A182 F316 Lap Joint Flange

A182 F316‌ lap joint flange uses flanges, steel rings, etc. to put the flange on the pipe end, so that the flange can move on the pipe end. The steel ring or flange is used as a sealing surface, and the flange is used to press them tightly.

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A182 F316‌ lap joint flange uses flanges, steel rings, etc. to put the flange on the pipe end, so that the flange can move on the pipe end. The steel ring or flange is used as a sealing surface, and the flange is used to press them tightly. Because it is blocked by the steel ring or flange, the lap joint flange does not come into direct contact with the medium. A182 F316 has good corrosion resistance and can resist the erosion of various corrosive media. In different environments, such as humid atmospheric environments, industrial environments containing corrosive chemicals, etc., stainless steel lap joint flanges can maintain their structural integrity and performance.

Specification of  Lap Joint Flange

Size Range 1/2″ – 24” / DN15 – DN600
Pressure Rating Class 150, 300, 600, 900, 1500, 2500lb
Standard ASME B16.5, EN1092-1
Carbon Steel ASTM A105 / A105N
Low Temp Carbon Steel ASTM A350 LF2 / LF3
Pipeline Steel ASTM A694 F42 / 46 / 56 / 60 / 65
Alloy Steel ASTM A182 F11 / 12 / 5 / 9 / 91 / 92
Stainless Steel ASTM A182 F304/304L/304H, 316/316L, 310S, 317,347,904L
Duplex Stainless Steel ASTM A182 F51, F53, F44

Dimension of A182 F316 Lap Joint Flange

NPS A B C D R F H I J W
inch inch inch inch inch inch No. of

Holes

inch inch kg/pc
mm mm mm mm mm mm mm mm
1/2 3.500 0.900 0.440 0.620 0.120 1.190 4 0.620 2.380 0.38
88.90 22.90 11.20 15.70 3.000 30.20 15.70 60.45
3/4 3.880 1.110 0.500 0.620 0.120 1.500 4 0.620 2.750 0.55
98.60 28.20 12.70 15.70 3.000 38.10 15.70 69.85
1 4.250 1.380 0.560 0.690 0.120 1.940 4 0.620 3.120 0.76
108.0 35.10 14.20 17.50 3.000 49.30 15.70 79.25
1-1/4 4.620 1.720 0.620 0.810 0.190 2.310 4 0.620 3.500 1.01
117.3 43.70 15.70 20.60 4.800 58.70 15.70 88.90
1-1/2 5.000 1.970 0.690 0.880 0.250 2.560 4 0.620 3.880 1.30
127.0 50.00 17.50 22.40 6.400 65.00 15.70 98.60
2 6.000 2.460 0.750 1.000 0.310 3.060 4 0.750 4.750 2.03
152.4 62.5 19.10 25.40 7.900 77.70 19.10 120.7
2-1/2 7.000 2.970 0.880 1.120 0.310 3.560 4 0.750 5.500 3.25
177.8 75.40 22.40 28.40 7.900 90.40 19.10 139.7
3 7.500 3.600 0.940 1.190 0.380 4.250 4 0.750 6.000 3.81
190.5 91.40 23.90 30.20 9.700 108.0 19.10 152.4
3-1/2 8.500 4.100 0.940 1.250 0.380 4.810 8 0.750 7.000 4.76
215.9 104.1 23.90 31.75 9.700 122.2 19.10 177.8
4 9.000 4.600 0.940 1.310 0.440 5.310 8 0.750 7.500 5.25
228.6 116.8 23.90 33.30 11.20 134.9 19.10 190.5
5 10.00 5.690 0.940 1.440 0.440 6.440 8 0.880 8.500 6.02
254.0 114.5 23.90 36.60 11.20 163.6 22.40 215.9
6 11.00 6.750 1.000 1.560 0.500 7.560 8 0.880 9500 7.40
279.4 171.5 25.40 39.60 12.70 192.0 22.40 241.3
8 13.50 8.750 1.120 1.750 0.500 9.690 8 0.880 11.75 12.1
342.9 222.3 28.40 44.50 12.70 246.1 22.40 298.5
10 16.00 10.92 1.190 1.940 0.500 12.00 12 1.000 14.25 16.4
406.4 277.4 30.20 49.30 12.70 304.8 25.40 362.0
12 19.00 12.92 1.250 2.190 0.500 14.38 12 1.000 17.00 26.1
482.6 328.2 31.75 55.60 12.70 365.3 25.4 431.8
14 21.00 14.18 1.380 3.120 0.500 15.75 12 1.120 18.75 34.5
533.4 360.2 35.10 79.25 12.7 400.1 28.4 476.3
16 23.5 16.19 1.440 3.440 0.500 18.00 16 1.120 21.25 44.6
296.9 411.2 36.60 87.40 12.70 457.2 284 539.8
18 25.00 18.20 1.560 3.810 0.500 19.88 16 1.250 22.75 48.7
635.0 462.3 39.60 96.80 12.70 505.0 31.75 577.9
20 27.5 20.25 1.690 4.060 0.500 22.00 20 1.125 25.00 61.6
698.5 514.4 42.90 103.1 12.70 558.8 31.75 635
24 32.00 24.25 1.880 4.380 0.500 26.12 20 1.380 29.50 86.6
812.8 616.0 47.80 111.3 12.70 663.4 35.10 749.3

Application Fields of Stainless Steel Lap Joint Flange 

Oil and Gas Industry

Stainless steel lap joint flanges play an important role in the connection of ground equipment in oil wells. Since the lap joint flange has certain flexible connection characteristics, it can adapt to the slight displacement of oil well equipment caused by stratum movement or equipment vibration during the mining process, reducing the risk of pipeline damage caused by stress concentration.
In long-distance oil and gas pipeline networks, pipelines need to cross different geographical areas, including mountainous areas, plains, rivers, etc. Stainless steel lap joint flanges can be used for segmented connection of pipelines.
Chemical Industry

Chemical production involves the transportation of a large number of highly corrosive raw materials (such as acids, alkalis, salt solutions, etc.). Stainless steel lap joint flanges can be used to connect various chemical pipelines to ensure the safe transportation of chemical raw materials in the pipeline system.
Chemical Equipment Connection

Stainless steel lap joint flanges are common connection components in the connection between various equipment (such as reactors, heat exchangers, distillation towers, etc.) in chemical companies. Since different equipment may produce different degrees of displacement or vibration during operation due to factors such as temperature changes and internal pressure fluctuations, the flexible connection of the lap joint flange can effectively absorb these displacements and vibrations, reduce the stress of the equipment connection parts, and extend the service life of equipment and pipelines.

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