Lap Joint flange normally consists of an inner section the same size as the pipe and an outer ring with bolt holes. The use of Lap Joint Flanges at points where severe bending stress occurs should be avoided.
Standard - ANSI/ASME : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673
B.S : BS4504, BS4504, BS1560, BS10
Size : 1/2" (15 NB) to 48" (1200NB)
Class : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
Specialize :As per drawing
Stainless Steel Lap Joint Flanges : ASTM A182, A240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L
Carbon Steel Lap Joint Flanges : ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F70
Alloy Steel Lap Joint Flanges : ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Duplex Steel Lap Joint Flanges : ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
Super Duplex Lap Joint Flanges : ASTM / ASME A/SA 182, A240 F 44, F 45, F51, F 53, F 55, F 60, F 61
Nickel Alloy Lap Joint Flanges : Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020), Titanium (Grade I & II)
Copper Alloy Lap Joint Flanges : UNS No. C10100, 10200, 10300, 10800, 12000, 12200, 70600, 71500, UNS No. C 70600 (Cu -Ni- 90/10), C 71500 (Cu-Ni-70/30)
Low Temperature Carbon Steel Lap Joint Flanges : ASTM A350, LF2, LF3
| Drilling | ||||||||
|---|---|---|---|---|---|---|---|---|
| Nominal Bore | Dia. (D) |
Thick. (E) |
Dia. (B) |
Dia. (A) |
Height (H) |
Nbr | Holes | Dia. (C) |
1/2" |
90 |
11.2 |
30 |
22.9 |
16 |
4 |
15.87 |
60.3 |
3/4" |
100 |
12.7 |
38 |
28.2 |
16 |
4 |
15.87 |
69.9 |
1" |
110 |
14.3 |
49 |
34.9 |
17 |
4 |
15.87 |
79.4 |
1 1/4" |
115 |
15.9 |
59 |
43.7 |
21 |
4 |
15.87 |
88.9 |
1 1/2" |
125 |
17.5 |
65 |
50.0 |
22 |
4 |
15.87 |
98.4 |
2" |
150 |
20.7 |
78 |
62.5 |
25 |
4 |
19.05 |
120.7 |
2 1/2" |
180 |
22.3 |
90 |
75.4 |
29 |
4 |
19.05 |
139.7 |
3" |
190 |
23.9 |
108 |
91.4 |
30 |
4 |
19.05 |
152.4 |
3 1/2" |
215 |
23.9 |
122 |
104.1 |
32 |
8 |
19.05 |
177.8 |
4" |
230 |
23.9 |
135 |
116.8 |
33 |
8 |
19.05 |
190.5 |
5" |
255 |
23.9 |
164 |
144.4 |
36 |
8 |
22.22 |
215.9 |
6" |
280 |
25.4 |
192 |
171.4 |
40 |
8 |
22.22 |
241.3 |
8" |
345 |
28.6 |
246 |
222.2 |
44 |
8 |
22.22 |
298.5 |
10" |
405 |
30.2 |
305 |
277.4 |
49 |
12 |
25.40 |
362.0 |
12" |
485 |
31.8 |
365 |
328.2 |
56 |
12 |
25.40 |
431.8 |
14" |
535 |
35.0 |
400 |
360.2 |
79 |
12 |
28.57 |
476.3 |
16" |
595 |
36.6 |
457 |
411.2 |
87 |
16 |
28.57 |
539.8 |
18" |
635 |
39.7 |
505 |
462.3 |
97 |
16 |
31.75 |
577.9 |
20" |
700 |
42.9 |
559 |
514.4 |
103 |
20 |
31.75 |
635.0 |
24" |
815 |
47.7 |
663 |
616.0 |
111 |
20 |
34.92 |
749.3 |
| Drilling | ||||||||
|---|---|---|---|---|---|---|---|---|
| Nominal Bore | Dia. (D) |
Thick. (E) |
Dia. (B) |
Dia. (A) |
Height (H) |
Nbr | Holes | Dia. (C) |
1/2" |
95 |
14.3 |
38 |
22.9 |
22 |
4 |
15.87 |
66.7 |
3/4" |
115 |
15.9 |
48 |
28.2 |
25 |
4 |
19.05 |
82.6 |
1" |
125 |
17.5 |
54 |
34.9 |
27 |
4 |
19.05 |
88.9 |
1 1/4" |
135 |
19.1 |
64 |
43.7 |
27 |
4 |
19.05 |
98.4 |
1 1/2" |
155 |
20.7 |
70 |
50.0 |
30 |
4 |
22.22 |
114.3 |
2" |
165 |
22.3 |
84 |
62.5 |
33 |
8 |
19.05 |
127.0 |
2 1/2" |
190 |
25.4 |
100 |
75.4 |
38 |
8 |
22.22 |
149.2 |
3" |
210 |
28.6 |
117 |
91.4 |
43 |
8 |
22.22 |
168.3 |
3 1/2" |
230 |
30.2 |
133 |
104.1 |
44 |
8 |
22.22 |
184.2 |
4" |
255 |
31.8 |
146 |
116.8 |
48 |
8 |
22.22 |
200.0 |
5" |
280 |
35.0 |
178 |
144.4 |
51 |
8 |
22.22 |
235.0 |
6" |
320 |
36.6 |
206 |
171.4 |
52 |
12 |
22.22 |
269.9 |
8" |
380 |
41.3 |
260 |
222.2 |
62 |
12 |
25.40 |
330.2 |
10" |
445 |
47.7 |
321 |
277.4 |
95 |
16 |
28.57 |
387.4 |
12" |
520 |
50.8 |
375 |
328.2 |
102 |
16 |
31.75 |
450.8 |
14" |
585 |
54.0 |
425 |
360.2 |
111 |
20 |
31.75 |
514.4 |
16" |
650 |
57.2 |
483 |
411.2 |
121 |
20 |
34.29 |
571.5 |
18" |
710 |
60.4 |
533 |
462.3 |
130 |
24 |
34.29 |
628.6 |
20" |
775 |
63.5 |
587 |
514.4 |
140 |
24 |
34.29 |
685.8 |
24" |
915 |
69.9 |
702 |
616.0 |
152 |
24 |
41.27 |
812.8 |
| Drilling | ||||||||
| Nominal Bore | Dia. (D) |
Thick. (E) |
Dia. (B) |
Dia. (A) |
Height (H) |
Nbr | Holes | Dia. (C) |
1/2" |
95 |
14.3 |
38 |
23.6 |
22 |
4 |
15.87 |
66.7 |
3/4" |
115 |
15.9 |
48 |
29.0 |
25 |
4 |
19.05 |
82.6 |
1" |
125 |
17.5 |
54 |
35.8 |
27 |
4 |
19.05 |
88.9 |
1 1/4" |
135 |
20.7 |
64 |
44.4 |
29 |
4 |
19.05 |
98.4 |
1 1/2" |
155 |
22.3 |
70 |
50.6 |
32 |
4 |
22.22 |
114.3 |
2" |
165 |
25.4 |
84 |
63.5 |
37 |
8 |
19.05 |
127.0 |
2 1/2" |
190 |
28.6 |
100 |
76.2 |
41 |
8 |
22.22 |
149.2 |
3" |
210 |
31.8 |
117 |
92.2 |
46 |
8 |
22.22 |
168.3 |
3 1/2" |
230 |
35.0 |
133 |
104.9 |
49 |
8 |
25.40 |
184.2 |
4" |
275 |
38.1 |
152 |
117.6 |
54 |
8 |
25.40 |
215.9 |
5" |
330 |
44.5 |
189 |
144.4 |
60 |
8 |
28.57 |
266.7 |
6" |
355 |
47.7 |
222 |
171.4 |
67 |
12 |
28.57 |
292.1 |
8" |
420 |
55.6 |
273 |
222.2 |
76 |
12 |
31.75 |
349.2 |
10" |
510 |
63.5 |
343 |
276.2 |
111 |
16 |
34.92 |
431.8 |
12" |
560 |
66.7 |
400 |
328.6 |
117 |
20 |
34.92 |
489.0 |
14" |
605 |
69.9 |
432 |
360.4 |
127 |
20 |
38.10 |
527.0 |
16" |
685 |
76.2 |
495 |
411.2 |
140 |
20 |
41.27 |
603.2 |
18" |
745 |
82.6 |
546 |
462.0 |
152 |
20 |
44.45 |
6654.0 |
20" |
815 |
88.9 |
610 |
512.8 |
165 |
24 |
44.45 |
723.9 |
24" |
940 |
101.6 |
718 |
614.4 |
184 |
24 |
50.80 |
838.2 |
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