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Asme/ansi B16.5 Lap Joint Pipe Flanges stockist


High Quality Lap Joint (Lj) Forged Flanges, Raised Face Lap Joint Flange, ASME B16.5 / ANSI B16.47 Lap Joint Flange, We are offering competitive prices on DIN Lap Joint Flange, Series A & B LJRF Flanges, MSS Lap Joint Flange


Carbon, Alloy, Stainless Steel Lap Joint Flanges, SS Lap Joint Flanges, Alloy Steel Lap Joint Flanges, Nickel Alloy 200 LJ Flange, Carbon Steel Lap Joint Flange, Inconel Lap Joint Flange, Hastelloy Lap Joint Flange, Copper Nickel LJRF Flanges, Duplex & Super Duplex Lap Joint Flange, Alloy 20 Lap Joint Flange



Lap Joint Flanges stockist
Lap Joint Flanges

Cromwell Distribution is a Dominant and Expert Stockist Stockist of high quality ASME/ANSI/DIN industrial lap joint flanges . We offer immediate delivery programs for standard size carbon steel lap joint flanges and stainless steel lap joint flanges. Lap joint flanges in carbon steel, special stainless steel grades, nickel alloy and alloy steel can be supplied with just in time programs.

Lap Joint Flanges are similar to other types of industrial flanges, but it does not have a raised face. Lap joint flanges are used in conjunction with a “Lap Joint Stub End”. The total initial cost of a lap joint flange along with a stub end is around one-third higher than that of comparable welding neck flanges. The pressure holding capacity of lap joint flanges is comparatively lower, and the fatigue life for the assembly is only one tenth that of welding neck flanges. The lap joint flange with the stub end assembly is normally used in piping systems which require regular dismantling for inspection and cleaning. These flanges slip over the pipe, and are not welded or otherwise fastened to it. Bolting pressure is transmitted to the gasket by the pressure of the flange against the back of the pipe lap (Stub End).


What is Lap Joint Flange ?

Lap joint flanges use a stub end that is welded to the pipe. A ring flange fits loosely around the stub end, permitting easy flange alignment of the bolt holes. A lap joint flange is also called Van Stone or Stub Flange. The stub ends are available in three styles (Types A, B, and C) and two lengths (Short and Long).

LJ Flanges are used on piping fitted with lapped pipe or with lap joint stub ends the combined initial cost of the two items being approximately one-third higher than that of comparable welding neck flanges.


Lap Joint Flanges Specification


Lap Joint Flanges, Lj Forged Flanges Production Range

Size 1/2″ (15 NB) to 48″ (1200NB)
Standards ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Pressure Ratings Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.
Carbon Steel Lap Joint Flanges ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8
Stainless Steel Lap Joint Flanges ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L
Alloy Steel Lap Joint Flanges ASTM A182 F1, F5, F9, F11, F22, F91
Special Alloy Lap Joint Flanges Duplex, Super Duplex, Nickel Alloys
Flange Face Type Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Coating/Surface Treatment Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
Value Added Services CNC Machining, Customised Flanges

Lap Joint Flange – Standards

ASME: ANSI B16.5, ANSI B16.47, ANSI B16.36, ANSI B16.48, BS 4504, EN1092, UNI 2277/2278, DIN, JIS, SABS1123, GOST-12820

DIN: DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673

EN: EN10253-1, EN10253-2


Lap Joint Flange Materials Grades

Materials : Standard, Grades
Stainless Steel Lap Joint Flanges : ASTM A 182, A 240 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
6% Moly / Super Duplex Lap Joint Flanges : ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
Low Temperature Steel Lap Joint Flanges : ASTM A350 LF2, LF3, LF6
High Yield Lap Joint Flanges : ASTM A694 F42, F52, F60, F65, F70
Nickel Alloys Lap Joint Flanges : ASTM SB564, SB160, SB472, SB162 – 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)
Copper Alloys Lap Joint Flanges : ASTM SB 61 , SB62 , SB151 , SB152 – UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200
Alloys Lap Joint Flanges : ALLOY 20, ALLOY C, ALLOY C276, ALLOY B2
Other Grade of Lap Joint Flanges : Bronze, Brass, Cupro Nickel, Titanium, Inconel, Monel, Hastelloy


ASME B16.5 Lap Joint Flange Dimensions


Lap Joint Flange 150 Lbs Dimensions
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

Note: The dimensions are in millimeters


Lap Joint Flange 300 Lbs Dimensions
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

Note: The dimensions are in millimeters


Lap Joint Flange 600 Lbs Dimensions
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

ASME B16.5 Lap Joint Flanges Dimensional Tolerances

Outside Diameter
≤ 24 = 1.6 mm | > 24 = ± 3.2 mm
Inside Diameter
Within Limits on Boring Gauge
Diameter of Contact Face
1.6 mm Raised Face = ± 0.8 mm
6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm
Drilling
Bolt Circle = 1.6 mm | Bolt Hole Spacing = ± 0.8 mm
Eccentricity of Bolt Circle with Respect to Facing
≤ 2½ = 0.8 mm max. | ≥ 3 = 1.6 mm max.
Outside Diameter of Hub
≤ 12 = + 2.4 mm / – 1.6 mm | ≥ 14 = ± 3.2 mm
Diameter of Counterbore
Same as forInside Diameter
Thickness
≤ 18 = + 3.2 mm / – 0 | ≥ 20 = + 4.8 mm / – 0
Length thru Hub
≤ 18 = + 3.2 mm / – 0.8 mm | ≥ 20 = + 4.8 mm / – 1.6 mm

Lap Joint Flanges - Marking & Packing

Products are packaged to ensure that there is no damage during transit. packaging is done in wooden cases. All Lap Joint Flanges are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also, make custom marking on our products.


Lap Joint Flanges - Value Added Services


  • Hot Dipped Galvanizing
  • Epoxy & FBE Coating
  • Electro Polish

Lap Joint Flanges - Quality Assurance

At Cromwell Distribution, all flanges are subject to strict inspection at each stage of the production process, from starting material purchasing to product dispatch. They are visually examined for conformity to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. Upon request, official certified Inspection Agencies can be called in to witness the material reports, dimensions and quality conformity of products.


Contact Cromwell Distribution for best offer of Lap Joint Flanges
Call: (361) 510-2964
Emailsales@cromwelldistribution.com