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Stainless Steel Loose Pipe Flanges and Long Stub End Flange Manufatcurer in India

Lap joint flanges are useful in low pressure environments, especially if the pipe in a system is produced from an expensive alloy. For instance, carbon or alloy steel flanges may be coupled with a stainless steel pipe. Generally, lap joint flange manufacturers recommend using them in connections that are either difficult to adjust or large connections.

Lap Joint Flange

The assembly of these flanges in a piping system makes use of two components. First - the flange, which can be rotated to meet the alignment of the mating flange. And second - the stub end, which is welded to the pipe. Once the stub is welded to the pipe, with the Type B Lap Joint Flange remaining loose. These flanges are similar to a Slip On flange. The difference between them is seen in the radius at the intersection of the flange face and the bore. This difference is what enables the Lap Joint Blind Flange to house the flanged part of the Stub End. Although they are similar to slip on flanges, the pressure bearing capacity of the Alloy Short Lj Flange is slightly higher than the former. This is why they are ideal for operations that deal with low pressure. Furthermore, when compared to a weld neck flange, their resistance to fatigue is a faction of WNF, rendering them unsuited to critical applications. To improve the hardness of a stainless steel or Carbon Steel Type A lap Joint Flange, they are heat treated by use of tempers. While tempers increase the hardness of stainless steel alloys, they optimize the toughness and strike a balance between the hardness and ductility of carbon steel grades. Since low pressure systems make use of this device it is advisable to use the Stainless Steel Loose Pipe Flanges for applications that need resistance to oxidation corrosion.

Manufacturer and supplier of Carbon Steel Type A lap Joint Flange in Mumbai, Check A182 F11 Loose Flange Dimensions, SS Van Stone Flange Weight

 

What Is A Lap Joint Flange

A lap-joint flange is a two-segment assembly, with a stub end that has a lap-joint ring flange put over it. The stub end is then butt welded to the pipe, and the flange ring can be turned to align with the mating flange. This kind of flange association is especially valuable for huge or difficult to-change flanges.


Lap Joint Pipe Flanges Specification

Type LJ Forged Flanges, Class 150 Lap Joints, Class 300 Lap Joints, Class 600 Lap Joints
Size ½ inch - 48 inch
Standard ANSI B16.5, ANSI B16.47, EN1092, ANSI B16.36, ANSI B16.48, JIS, BS 4504, UNI 2277/2278, DIN, SABS1123, GOST-12820
Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6, 10, 16, 25, 40 Etc.
DIN DIN2527, 2566, 2573, 2628, 2576, 2634, 2641, 2642, 2655, 2656, 2627, 2629, 2631, 2632, 2633, 2635, 2636, 2637, 2638, 2673
BS BS4504, BS10, BS1560, BS4504
In Form SORF, Threaded, WNRF, BLRF, SWRF, LAP Joint, Reducing, Spectacle, etc
Coating/Surface Treatment Anti-rust Paint, Zinc Plated, Oil Black Paint, Yellow Transparent, Cold and Hot Dip Galvanized
Flanges Face Type Flat Face, Lap-Joint Face, Raised Face, Large Male-Female, Ring Type Joint, Small Tongue, Small Male-Female, Large Tongue & Groove Flanges manufacturer and Supplier
Flanges Marking All Flanges are marked as follows: Supplier or Manufacturer’s Name, Size, Class, Bore, Dimension, Material, Heat No. Or according to the customer’s request.
Supplier and Distributors Located in Coimbatore, Gujarat, Ludhiana, Gurgaon, Chennai, Muscat, Pimpri Chinchwad, Port of Spain, Howrah, Kolkata, Hyderabad, Kuwait, Rajkot, London, Karachi, Tehran, Bogota, Bengaluru, Perth, Abu Dhabi, Bangalore, Caracas, Ludhiana, Khobar, Calgary, Gimhae si, Istanbul, Ankara, Dammam, Jamshedpur, Manama, Vadodara, Melbourne, India, Ernakulam, Lagos, Janeiro, Nagpur, Indore, Montreal, Thiruvananthapuram, Baroda, New Delhi, Santiago, Sydney, Ahvaz, Mumbai, Mexico, Courbevoie, Ahmedabad, Kanpur, Riyadh, Surat, Noida, Ranchi
Dimensions AWWA, ANSI B16.5, MSS SP44, ANSI B16.47 Series A & B, ASA, API-605, Custom Drawings
Usage Electric Power, Oil Field, Shipbuilding, Offshore, Water System, Natural Gas, Pipe Projects etc.

Loose Flange Types

Check online Alloy steel Type B Stub Flange Price list, Nickel Alloy Short Lj Flange Dimensions In Mm, stockist and distributor of Type B Lap Joint Flange in India

Class 150 Flange Custom Metal Lap Joint Flanges

Class 150 Flange Custom Metal Lap Joint Flanges

Asme B16.5 Rtj Lap Joint Slip On Flanges

Asme B16.5 Rtj Lap Joint Slip On Flanges

Raised Face Lap Joint Flange

Raised Face Lap Joint Flange

Asme B 16.5 1/2inch To 96inch Lap Joint Raised Face Flanges

Asme B 16.5 1/2inch To 96inch Lap Joint Raised Face Flanges

Forged Stainless Steel Lap Joint Flange Ansi B16.5

Forged Stainless Steel Lap Joint Flange Ansi B16.5

Din Lap Joint Pn16 Plate Flanges

Din Lap Joint Pn16 Plate Flanges

Uns N06600 Nickel Alloy Lj Flanges Lap Joint Flanges

Uns N06600 Nickel Alloy Lj Flanges Lap Joint Flanges

Stainless Steel Lap Joint Flange 150# Raised Face

Stainless Steel Lap Joint Flange 150# Raised Face

A105 Lap Joint Blind Flanges

A105 Lap Joint Blind Flanges

Api 6a Standard Blind Aluminum Lap Joint Flange

Api 6a Standard Blind Aluminum Lap Joint Flange

Nickel Alloy Lap Joint Flanges 1/2inch 300# Dn15 Lj Flanges

Nickel Alloy Lap Joint Flanges 1/2inch 300# Dn15 Lj Flanges

Stainless Steel Ansi B16.5 Lap Joint Class 300 Flanges

Stainless Steel Ansi B16.5 Lap Joint Class 300 Flanges

Stainless Steel Lap Joint Loose Flange

Stainless Steel Lap Joint Loose Flange

Astm A105 Flat Face Lap Joint Flange

Astm A105 Flat Face Lap Joint Flange

Ansi Standard Ss316 Class 150lb Loose Joint Flanges

Ansi Standard Ss316 Class 150lb Loose Joint Flanges

Dn50 Class 150 Lap Joint Flange

Dn50 Class 150 Lap Joint Flange

Ansi B16.5 Stainless Steel Forged Lap Joint Flanges

Ansi B16.5 Stainless Steel Forged Lap Joint Flanges

Titanium Lap Joint Flange

Titanium Lap Joint Flange

Asme B16.5 Class 150 Rtj Lap Joint Flange

Asme B16.5 Class 150 Rtj Lap Joint Flange

Stainless Steel 304 Lap Joint Flange

Stainless Steel 304 Lap Joint Flange

Astm A182 F50 S32760 Duplex Stainless Steel Lap Joint Plate Threaded Flange

Astm A182 F50 S32760 Duplex Stainless Steel Lap Joint Plate Threaded Flange


150 Lb Lap Joint Flange Dimensions

Size in Inch Size in MM Outer Diameter Flange Thickness Lapped Thickness Lapped Inner Diameter PCD Lapped Thickness Lapped Radius No of Bolts Bolt Size UNC Machine Bolt Length RF Stud Length Hole Size ISO Stud Size Weight in kg
    A B C D E G                
3/4 20 100 38 16 28.2 69.9 12.7 3 4 1/2 50 65 5/8 M14 0.9
2 1/2 65 180 90 29 75.4 139.7 22.3 8 4 5/8 75 90 3/4 M16 3.2
1 25 110 49 17 34.9 79.4 14.3 3 4 1/2 55 65 5/8 M14 0.9
1 1/4 32 115 59 21 43.7 88.9 15.9 5 4 1/2 55 70 5/8 M14 1.4
1/2 15 90 30 16 22.9 60.3 11.2 3 4 1/2 50 55 5/8 M14 0.8
1 1/2 40 125 65 22 50 98.4 17.5 6 4 1/2 65 70 5/8 M14 1.4
2 50 150 78 25 62.5 120.7 19.1 8 4 5/8 70 85 3/4 M16 2.3
3 80 190 108 30 91.4 152.4 23.9 10 4 5/8 75 90 3/4 M16 3.7
3 1/2 90 215 122 32 104.1 177.8 23.9 11 8 5/8 75 90 3/4 M16 5
4 100 230 135 33 116.8 190.5 23.9 11 8 5/8 75 90 3/4 M16 5.9
5 125 255 164 36 144.4 215.9 23.9 11 8 3/4 85 95 7/8 M20 6.8
14 350 535 400 79 360.2 476.3 35 13 12 1 115 135 1 1/8 M27 41
6 150 280 192 40 171.4 241.3 25.4 13 8 3/4 85 100 7/8 M20 8.6
8 200 345 246 44 222.2 298.5 28.6 13 8 3/4 90 110 7/8 M20 13.7
10 250 405 305 49 277.4 362 30.2 13 12 7/8 100 115 1 M24 19.5
12 300 485 365 56 328.2 431.8 31.8 13 12 7/8 100 120 1 M24 29
16 400 595 457 87 411.2 539.8 36.6 13 16 1 115 135 1 1/8 M27 54
18 450 635 505 97 462.3 577.9 39.7 13 16 1 1/8 125 145 1 1/4 M30 59
24 600 815 663 111 616 749.3 47.9 13 20 1 1/4 150 170 1 3/8 M33 100
20 500 700 559 103 514.4 635 42.9 13 20 1 1/8 140 160 1 1/4 M30 75

300# Loose Flange Dimensions

Size in Inch Size in MM Outer Diameter Flange Thickness Lapped Thickness Lapped Inner diameter PCD Lapped Thickness Lapped Radius No of Bolts Bolt Size UNC Machine Bolt Length RF Stud Length Hole Size ISO Stud Size Weight in kg
    A B C D E G                
2 50 165 84 33 62.5 127 22.3 8 8 5/8 75 90 3/4 M16 3.2
3/4 20 115 48 25 28.2 82.6 15.9 3 4 5/8 65 75 3/4 M16 1.4
1 25 125 54 27 34.9 88.9 17.5 3 4 5/8 65 75 3/4 M16 1.4
1 1/4 32 135 64 27 43.7 98.4 19.1 5 4 5/8 70 85 3/4 M16 1.8
1 1/2 40 155 70 30 50 114.3 20.7 6 4 3/4 75 90 7/8 M20 2.7
2 1/2 65 190 100 38 75.4 149.2 25.4 8 8 3/4 85 100 7/8 M20 4.6
3 80 210 117 43 91.4 168.3 28.6 10 8 3/4 90 110 7/8 M20 5.9
8 200 380 260 62 222.2 330.2 41.3 13 12 7/8 120 140 1 M24 26
1/2 15 95 38 22 22.9 66.7 14.3 3 4 1/2 55 65 5/8 M14 1.2
3 1/2 90 230 133 44 104.1 184.2 30.2 11 8 3/4 95 110 7/8 M20 7.7
4 100 255 146 48 116.8 200 31.8 11 8 3/4 95 115 7/8 M20 10
5 125 280 178 51 144.4 235 35 11 8 3/4 110 120 7/8 M20 12.7
6 150 320 206 52 171.4 269.9 36.6 13 12 3/4 110 120 7/8 M20 17.7
24 600 915 702 153 616 812.8 69.9 13 24 1 1/2 205 230 1 5/8 M39 216
10 250 445 321 95 277.4 387.4 47.7 13 16 1 140 160 1 1/8 M27 36
12 300 520 375 102 328.2 450.8 50.8 13 16 1 1/8 145 170 1 1/4 M30 52
14 350 585 425 111 360.2 514.4 54 13 20 1 1/8 160 180 1 1/4 M30 75
16 400 650 483 121 411.2 571.5 57.2 13 20 1 1/4 165 190 1 3/8 M33 86
18 450 710 533 130 462.3 628.6 60.4 13 24 1 1/4 170 195 1 3/8 M33 113
20 500 775 587 140 514.4 685.8 63.5 13 24 1 1/4 185 205 1 3/8 M33 143

Lap Joint Class 400 Blind Flange Dimension table

View Lap Joint Flange Weight, Mild Steel LJRF Flange Bolt Length and Jis Losse Flange Dimensions, PED Approved A105 Type C Stub End Flange Manufacturers in Mumbai
Size in Inch Size in MM Outer Diameter Flange Thickness Lapped Thickness Lapped Inner Diameter PCD Lapped Thickness Lapped Radius No of Bolts Bolt Size UNC RF Stud Length Hole Size ISO Stud Size Weight in kg
    A B C D E G              
3/4 20 115 48 25 28.2 82.6 15.9 3 4 5/8 90 3/4 M16 1.5
1/2 15 95 38 22 22.9 66.7 14.3 3 4 1/2 75 5/8 M14 1.3
1 25 125 54 27 34.9 88.9 17.5 3 4 5/8 90 3/4 M16 1.8
1 1/4 32 135 64 29 43.7 98.4 20.7 5 4 5/8 95 3/4 M16 2.3
1 1/2 40 155 70 32 50 114.3 22.3 6 4 3/4 110 7/8 M20 3.2
2 50 165 84 37 62.5 127 25.4 8 8 5/8 110 3/4 M16 4.1
2 1/2 65 190 100 41 75.4 149.2 28.6 8 8 3/4 120 7/8 M20 5.9
6 150 320 206 57 171.4 269.9 41.3 13 12 7/8 150 1 M24 20
3 80 210 117 46 91.4 168.3 31.8 10 8 3/4 125 7/8 M20 7.3
3 1/2 90 230 133 49 104.1 184.2 35 10 8 7/8 140 1 M24 9.6
4 100 255 146 51 116.8 200 35 11 8 7/8 140 1 M24 11.8
5 125 280 178 54 144.5 235 38.1 11 8 7/8 145 1 M24 14.1
24 600 915 702 159 616 812.8 76.2 13 24 1 3/4 265 1 7/8 M45 232
8 200 380 260 68 222.2 330 47.7 13 12 1 170 1 1/8 M27 31
10 250 445 321 102 277.4 387.4 54 13 16 1 1/8 190 1 1/4 M30 42
12 300 520 375 108 328.2 450.8 57.2 13 16 1 1/4 205 1 3/8 M33 59
14 350 585 425 117 360.2 514.4 60.4 13 20 1 1/4 210 1 3/8 M33 82
16 400 650 483 127 411.2 571.5 63.5 13 20 1 3/8 220 1 1/2 M36 107
18 450 710 533 137 462.3 628.6 66.7 13 24 1 3/8 230 1 1/2 M36 130
20 500 775 587 146 514.4 685.8 69.9 13 24 1 1/2 240 1 3/4 M39 157

Lap Joint Flange Dimensions Class 600

Size in Inch Size in MM Outer Diameter Flange Thickness Lapped Thickness Lapped Inner Diameter PCD Lapped Thickness Lapped Radius No of Bolts Bolt Size UNC RF Stud Length Hole Size ISO Stud Size Weight in kg
    A B C D E G              
3/4 20 115 48 25 28.2 82.6 15.9 3 4 5/8 90 3/4 M16 1.4
1 25 125 54 27 34.9 88.9 17.5 3 4 5/8 90 3/4 M16 1.8
1 1/4 32 135 64 29 43.7 98.4 20.7 5 4 5/8 95 3/4 M16 2.3
8 200 420 273 76 222.2 349.2 55.6 13 12 1 1/8 190 1 1/4 M30 52
1 1/2 40 155 70 32 50 114.3 22.3 6 4 3/4 110 7/8 M20 3.2
2 50 165 84 37 62.5 127 25.4 8 8 5/8 110 3/4 M16 4.1
2 1/2 65 190 100 41 75.4 149.2 28.6 8 8 3/4 120 7/8 M20 5.9
3 80 210 117 46 91.4 168.3 31.8 10 8 3/4 125 7/8 M20 7.3
3 1/2 90 230 133 49 104.1 184.2 35 11 8 7/8 140 1 M24 9.6
4 100 275 152 54 116.8 215.9 38.1 11 8 7/8 145 1 M24 16.8
5 125 330 189 60 144.4 266.7 44.5 11 8 1 165 1 1/8 M27 29
24 600 940 718 184 616 838.2 101.6 13 24 1 7/8 330 2 M48 332
6 150 355 222 67 171.4 292.1 47.7 13 12 1 170 1 1/8 M27 36
1/2 15 95 38 22 22.9 66.7 14.3 3 4 1/2 75 5/8 M14 1.3
10 250 510 343 111 277.4 431.8 63.5 13 16 1 1/4 215 1 3/8 M33 77
12 300 560 400 117 328.2 489 66.7 13 20 1 1/4 220 1 3/8 M33 91
14 350 605 432 127 360.2 527 69.9 13 20 1 3/8 235 1 1/2 M36 105
16 400 685 495 140 411.2 603.2 76.2 13 20 1 1/2 255 1 5/8 M39 150
18 450 745 546 152 462.3 654 82.6 13 20 1 5/8 275 1 3/4 M42 182
20 500 815 610 165 514.4 723.9 88.9 13 24 1 5/8 285 1 3/4 M42 232

Class 900 Lap Joint Flange Dimensions In Mm

Size in Inch Size in MM Outer Diameter Flange Thickness Lapped Thickness Lapped Inner Diameter PCD Lapped Thickness Lapped Radius No of Bolts Bolt Size UNC RF Stud Length Hole Size ISO Stud Size Weight in kg
    A B C D E G              
3/4 20 130 44 35 28.2 88.9 25.4 3 4 3/4 115 7/8 M20 2.3
1 25 150 52 41 34.9 101.6 28.6 3 4 7/8 125 1 M24 3.6
24 600 1040 749 267 616 901.7 139.7 13 20 2 1/2 440 2 5/8 M64 608
1 1/4 32 160 64 41 43.7 111.1 28.6 5 4 7/8 125 1 M24 4.1
1 1/2 40 180 70 44 50 123.8 31.8 6 4 1 140 1 1/8 M27 5.5
2 50 215 105 57 62.5 165.1 38.1 8 8 7/8 145 1 M24 11.5
2 1/2 65 245 124 64 75.4 190.5 41.3 8 8 1 160 1 1/8 M27 16.5
3 80 240 127 54 91.4 190.5 38.1 10 8 7/8 145 1 M24 12
4 100 290 159 70 116.8 235 44.5 11 8 1 1/8 170 1 1/4 M30 24
5 125 350 190 79 144.4 279.4 50.8 11 8 1 1/4 190 1 3/8 M33 38
1/2 15 120 38 32 22.9 82.6 22.3 3 4 3/4 110 7/8 M20 1.8
6 150 380 235 86 171.4 317.5 55.6 13 12 1 1/8 190 1 1/4 M30 50
8 200 470 298 114 222.2 393.7 63.5 13 12 1 3/8 220 1 1/2 M36 78
10 250 545 368 127 277.4 469.9 69.9 13 16 1 3/8 235 1 1/2 M36 112
14 350 640 451 156 360.2 558.8 85.8 13 20 1 1/2 275 1 5/8 M39 182
16 400 705 508 165 411.2 616 88.9 13 20 1 5/8 285 1 3/4 M42 193
18 450 785 565 190 462.3 685.8 101.6 13 20 1 7/8 325 2 M48 258
20 500 855 622 210 514.4 749.3 108 13 20 2 350 2 1/8 M52 317
12 300 610 419 143 328.2 533.4 79.4 13 20 1 3/8 255 1 1/2 M36 148

SS Loose Flange Dimensions 1500

Size in Inch Size in mm Outer Diameter Flange Thickness Lapped Thickness Lapped Inner Diameter PCD Lapped Thickness Lapped Radius No of Bolts Bolt Size UNC RF Stud Length Hole Size ISO Stud Size Weight in kg
    A B C D E G              
14 350 750 495 241 360.2 635 133.4 13 16 2 1/4 405 2 3/8 M56 341
1/2 15 120 38 32 22.9 82.6 22.3 3 4 3/4 110 7/8 M20 1.8
1 25 150 52 41 34.9 101.6 28.6 3 4 7/8 125 1 M24 3.7
1 1/4 32 160 64 41 43.7 111.1 28.6 5 4 7/8 125 1 M24 4.1
1 1/2 40 180 70 44 50 123.8 31.8 6 4 1 140 1 1/8 M27 5.5
2 50 215 105 57 62.5 165.1 38.1 8 8 7/8 145 1 M24 9.8
2 1/2 65 245 124 64 75.4 190.5 41.3 8 8 1 160 1 1/8 M27 16.4
3/4 20 130 44 35 28.2 88.9 25.4 3 4 3/4 115 7/8 M20 2.3
3 80 265 133 73 91.4 203.2 47.7 10 8 1 1/8 180 1 1/4 M30 21.8
4 100 310 162 90 116.8 241.3 54 11 8 1 1/4 195 1 3/8 M33 33
5 125 375 197 105 144.4 292.1 73.1 11 8 1 1/2 250 1 5/8 M39 59
6 150 395 229 119 171.4 317.5 82.6 13 12 1 3/8 260 1 1/2 M36 75
20 500 985 641 292 514.4 831.8 177.8 13 16 3 540 3 1/8 M76 792
10 250 585 368 178 277.4 482.6 108 13 12 1 7/8 335 2 M48 198
12 300 675 451 219 328.2 571.5 123.9 13 16 2 375 2 1/8 M52 264
16 400 825 552 260 411.2 704.8 146.1 13 16 2 1/2 445 2 5/8 M64 454
24 600 1170 762 330 616 990.6 203.2 13 16 3 1/2 615 3 5/8 M90 1248
18 450 915 597 276 462.3 774.7 162 13 16 2 3/4 495 2 7/8 M72 590
8 200 485 292 143 222.2 393.7 92.1 13 12 1 5/8 290 1 3/4 M42 118

Ss Lap Joint Flange #2500 Dimensions Schedule

Size in Inch Size in MM Outer Diameter Flange Thickness Lapped Thickness< Lapped ID PCD Lapped Thickness< Lapped Radius No of Bolts Bolt Size UNC RF Stud Length Hole Size ISO Stud Size Weight in kg
    A B C D E G              
12 300 760 441 254 328.2 619.1 184.2 13 12 2 3/4 540 2 7/8 M72 500
1/2 15 135 43 40 22.9 88.9 30.2 3 4 3/4 120 7/8 M20 3.2
3/4 20 140 51 43 28.2 95.2 31.8 3 4 3/4 125 7/8 M20 3.7
1 25 160 57 48 34.9 108 35 3 4 7/8 140 1 M24 5
1 1/4 32 185 73 52 43.7 130.2 38.1 5 4 1 150 1 1/8 M27 7.5
1 1/2 40 205 79 60 50 146 44.5 6 4 1 1/8 170 1 1/4 M30 10
2 50 235 95 70 62.5 171.4 50.9 8 8 1 180 1 1/8 M27 17.5
2 1/2 65 265 114 79 75.4 196.8 57.2 8 8 1 1/8 195 1 1/4 M30 23
3 80 305 133 92 91.4 228.6 66.7 10 8 1 1/4 220 1 3/8 M33 37.8
4 100 355 165 108 116.8 273 76.2 11 8 1 1/2 255 1 5/8 M39 57
5 125 420 203 130 144.4 323.8 92.1 11 8 1 3/4 300 1 7/8 M45 95
6 150 485 235 152 171.4 368.3 108 13 8 2 345 2 1/8 M52 148
8 200 550 305 178 222.2 438.2 127 13 12 2 380 2 1/8 M52 221
10 250 675 375 229 277.4 539.8 165.1 13 12 2 1/2 490 2 5/8 M64 425

Application Of Lap Joint Flange

Lap Joint Flange Uses

  • Petrochemical Industries
  • Oil & Gas Industries
  • Food Processing Industries
  • Chemical Industries
  • Sugar Industries
  • Power Generation Industries
  • Fertilizers Industries
  • Gas Processing Industries

Stainless Steel Lap Joint Flange Pressure Rating

Temperature (F°) 150# 300# 400# 600# 900# 1500# 2500#
200 260 680 905 1360 2035 3395 5655
300 230 655 870 1310 1965 3270 5450
400 200 635 845 1265 1900 3170 5280
500 170 605 805 1205 1810 3015 5025
600 140 570 755 1135 1705 2840 4730
-20 to 100 285 740 985 1480 2220 3705 6170
950 35 135 185 275 410 685 1145
650 125 550 730 1100 1650 2745 4575
700 110 530 710 1060 1590 2655 4425
750 95 505 675 1015 1520 2535 4230
800 80 410 550 825 1235 2055 3430
900 50 230 305 460 690 1150 1915
1000 20 85 115 170 255 430 715
850 65 320 425 640 955 1595 2655

Stainless Steel Loose Flange Gasket Dimensions

Manufacturer and exporter of Lap Joint Ring Flange, Type B LJ Flange, Check 304 Stainless Steel Loose Pipe Flanges Advantages, Inconel 625 Van Stone Flange Pressure Rating, Buy UNS S31803 Stub Flange at best price ex Mumbai
Nominal Pipe Size Gasket Inner diameter Gasket Outer Diameter
Class 150 LBS Class 300 LBS Class 400 LBS Class 600 LBS Class 900 LBS
10 10.75 13.375 14.25 14.125 15.75 17.125
1/2 0.84 1.875 2.125 2.125 2.125 2.50
3/4 1.06 2.25 2.625 2.625 2.625 2.75
1 1.31 2.625 2.875 2.875 2.875 3.125
1 1/4 1.66 3 3.25 3.25 3.25 3.50
1 1/2 1.91 3.375 3.75 3.75 3.75 3.875
2 2.38 4.125 4.375 4.375 4.375 5.625
2 1/2 2.88 4.875 5.125 5.125 5.125 6.50
3 3.50 5.375 5.875 5.875 5.875 6.625
4 4.50 6.875 7.125 7.00 7.625 8.125
6 6.62 8.75 9.875 9.75 10.50 11.375
8 8.62 11 12.125 12.00 12.625 14.125
12 12.75 16.125 16.625 16.50 18.00 19.625
5 5.56 7.75 8.50 8.375 9.50 9.75

Lap Joint Flange Bolt Length

Lap Joint Flange Bolt Chart

Class 150 LBS Class 300 LBS Class 600 LBS
Nominal Ppe Size Bolts And Studs Diameter of Bolts And Studs Stud Length Bolts And Studs Diameter of Bolts And Studs Stud Length Bolts And Studs Diameter of Bolts And Studs Stud Length
1/16 RF RTJ 1/16 RF RTJ 1/4 RF RTJ
3/4 4 0.50 2-1/2 4 0.63 3 3-1/2 4 0.63 3-1/2 3-1/2
1/2 4 0.50 2-1/4 4 0.50 2-1/2 3 4 0.50 3 3
1 4 0.50 2-1/2 3 4 0.63 3 3-1/2 4 0.63 3-1/2 3-1/2
5 8 0.75 3-3/4 4-1/4 8 0.75 4-3/4 5-1/4 8 1.00 6-1/2 6-1/2
1-1/4 4 0.50 2-3/4 3-1/4 4 0.63 3-1/4 3-3/4 4 0.63 3-3/4 3-3/4
1-1/2 4 0.50 2-3/4 3-1/4 4 0.75 3-1/2 4 4 0.75 4-1/4 4-1/4
2 4 0.63 3-1/4 3-3/4 8 0.63 3-1/2 4 8 0.63 4-1/4 4-1/4
2-1/2 4 0.63 3-1/2 4 8 0.75 4 4-1/2 8 0.75 4-3/4 4-3/4
3 4 0.63 3-1/2 4 8 0.75 4-1/4 4-3/4 8 0.75 5 5
3-1/2 8 0.63 3-1/2 4 8 0.75 4-1/4 5 8 0.88 5-1/2 5-1/2
4 8 0.63 3-1/2 4 8 0.75 4-1/2 5 8 0.88 5-3/4 5-3/4
6 8 0.75 4 4-1/2 12 0.75 4-3/4 5-1/2 12 1.00 6-3/4 6-3/4
12 12 0.88 4-3/4 5-1/4 16 1.13 6-3/4 7-1/4 20 1.25 8-3/4 8-3/4
8 8 0.75 4-1/4 4-3/4 12 0.88 5-1/2 6 12 1.13 7-1/2 7-3/4
10 12 0.88 4-1/2 5 16 1.00 6-1/4 6-3/4 16 1.25 8-1/2 8-1/2
24 20 1.25 6-3/4 7-1/4 24 1.50 9 10 24 1.88 13 13-1/4
14 12 1.00 5-1/4 5-3/4 20 1.13 7 7-1/2 20 1.38 9-1/4 9-1/4
16 16 1.00 5-1/4 5-3/4 20 1.25 7-1/2 8 20 1.50 10 10
18 16 1.13 5-3/4 6-1/4 24 1.25 7-3/4 8-1/4 20 1.63 10-3/4 10-3/4
20 20 1.13 6-1/4 6-3/4 24 1.25 8 8-3/4 24 1.63 11-1/4 11-1/2

Lap Joint Flange Sizes

DN In inches Dimension ALap Joint Flange Dimensional Sizes 1/2" to 2 1/2"
125 LBS
150 LBS
300 LBS 400 LBS 600 LBS 900 LBS 1500 LBS 2500 LBS
inches MM inches MM inches MM inches MM inches MM inches MM inches MM
1/2 A 3 1/2 88.9 3 3/4 95.2 3 3/4 95.2 3 3/4 95.2 4 3/4 121 4 3/4 121 5 1/4 133.4
b 7/16 11.1 9/16 14.3 9/16 14.3 9/16 14.3 7/8 22.2 7/8 22.2 1 3/16 30.2
D2 1 3/8 34.9 1 3/8 34.9 1 3/8 34.9 1 3/8 34.9 1 3/8 34.9 1 3/8 34.9 1 3/8 34.9
D1 2 3/8 60.3 2 5/8 66.7 2 5/8 66.7 2 5/8 66.7 3 1/4 82.6 3 1/4 82.6 3 1/2 88.9
n 4 4 4 4 4 4 4 4 4 4 4 - 4 44
d 5/8 15.9 5/8 15.9 5/8 15.9 5/8 15.9 7/8 22.2 7/8 22.2 7/8 22.2
3/4 A 3 7/8 98.4 4 5/8 117.5 4 5/8 117.5 4 5/8 117.5 5 1/8 130 5 1/8 130 5 1/2 139.7
b 1/2 12.7 5/8 15.9 5/8 15.9 5/8 15.9 1 25.4 1 25.4 1 1/4 31.8
D2 1 11/16 42.9 1 11/16 42.9 1 11/16 42.9 1 11/16 42.9 1 11/16 42.9 1 11/16 42.9 1 11/16 42.9
D1 2 3/4 69.8 3 1/4 82.5 3 1/4 82.5 3 1/4 82.5 3 1/2 88.9 3 1/2 88.9 3 3/4 95.2
n 4 4 4 4 4 4 4 4 4 4 4 - 4 44
d 5/8 15.9 3/4 19 3/4 19 3/4 19 7/8 22.2 7/8 22.2 7/8 22.2
1 A 4 1/4 108 4 7/8 123.8 4 7/8 123.8 4 7/8 123.8 5 7/8 149.2 5 7/8 149.2 6 1/4 159
b 9/16 14.3 11/16 17.5 11/16 17.5 11/16 17.5 1 1/8 28.6 1 1/8 28.6 1 3/8 34.9
D2 2 50.8 2 50.8 2 50.8 2 50.8 2 50.8 2 50.8 2 50.8
D1 3 1/8 79.4 3 1/2 88.9 3 1/2 88.9 3 1/2 88.9 4 102 4 102 4 1/4 108
n 4 4 4 4 4 4 4 4 4 4 4 4 4 4
d 5/8 15.9 3/4 19 3/4 19 3/4 19 1 25.4 1 25.4 1 25.4
1 1/4 A 4 5/8 117.5 5 1/4 133.4 5 1/4 133.4 5 1/4 133.4 6 1/4 159 6 1/4 159 7 1/4 184.2
b 5/8 15.9 3/4 19 13/16 20.6 13/16 20.6 1 1/8 28.6 1 1/8 28.6 1 1/2 38.1
D2 2 1/2 63.5 2 1/2 63.5 2 1/2 63.5 2 1/2 63.5 2 1/2 63.5 2 1/2 63.5 2 1/2 63.5
D1 3 1/2 88.9 3 7/8 98.4 3 7/8 98.4 3 7/8 98.4 4 3/8 111 4 3/8 111 5 1/8 130
n 4 4 4 4 4 4 4 4 4 4 4 4 4 4
d 5/8 15.9 3/4 19 3/4 19 3/4 19 1 25.4 1 25.4 1 1/8 28.6
1 1/2 A 5 127 6 1/8 155.6 6 1/8 155.6 6 1/8 155.6 7 177.8 7 177.8 8 203
b 11/16 17.5 13/16 20.6 7/8 22.2 7/8 22.2 1 1/4 31.8 1 1/4 31.8 1 3/4 44.5
D2 2 7/8 73 98 2 7/8 73 2 7/8 73 2 7/8 73 2 7/8 73 2 7/8 73 2 7/8 73
D1 3 7/8 4 4 1/2 114 4 1/2 114 4 1/2 114 4 7/8 124 4 7/8 124 5 3/4 146
n 4 4 4 4 4 4 4 4 4 4 4 4 4 4
d 5/8 . 15.9 7/8 22.2 7/8 22.2 7/8 22.2 1 1/8 28.6 1 1/8 28.6 1 1/4 31.8
2 A 6 152.4 6 1/2 165.1 6 1/2 165.1 6 1/2 165.1 8 1/2 215.9 8 1/2 215.9 9 1/4 234.9
b 3/4 19 7/8 22.2 1 25.4 1 25.4 1 1/2 38.1 1 1/2 38.1 2 50.8
D2 3 5/8 92.1 3 5/8 92.1 3 5/8 92.1 3 5/8 92.1 3 5/8 92.1 3 5/8 92.1 3 5/8 92.1
D1 4 3/4 121 5 127 5 127 5 127 6 1/2 165.1 6 1/2 165.1 6 3/4 171
n 4 4 8 8 8 8 8 8 8 8 8 8 8 8
d 3/4 19 3/4 19 3/4 19 3/4 19 1 25.4 1 25.4 1 1/8 28.6
2 1/2 A 7 177.8 7 1/2 190.5 7 1/2 190.5 7 1/2 190.5 9 5/8 244 9 5/8 244 10 1/2 266.7
b 7/8 22.2 1 25.4 1 1/8 28.6 1 1/8 28.6 1 5/8 41.3 1 5/8 41.3 2 1/4 57.2
D2 4 1/8 104.8 4 1/8 104.8 4 1/8 104.8 4 1/8 104.8 4 1/8 105 4 1/8 105 4 1/8 105
D1 5 1/2 139.7 5 7/8 149.2 5 7/8 149.2 5 7/8 149.2 7 1/2 190.5 7 1/2 190.5 7 3/4 197
n 4 4 8 8 8 8 8 8 8 8 8 8 8 8
d 3/4 19 7/8 22.2 7/8 22.2 7/8 22.2 1 1/8 28.6 1 1/8 28.6 1 1/4 31.8

You can check our associates and dealers at different part of world

Products We supplied to following Locations
Class 150 Flange Custom Metal Lap Joint Flanges Dammam -KSA, Indonesia, Philippines, Belgium
Asme B16.5 Rtj Lap Joint Slip On Flanges Qatar, France, Europe, Thailand
Raised Face Lap Joint Flanges Czechia, Germany, Thailand, Malaysia
Asme B 16.5 Stainless Steel Forged Flanges 1/2" To 96" Lap Joint Raised Face Flanges Malaysia, USA, Bangladesh, Finland
Forged Stainless Steel Lap Joint Flanges Ansi B16.5 South Africa, Saudi Arabia (KSA), Kuwait, Brazil
Din Lap Joint Pn16 Plate Flange Bahrain, South Africa, Singapore, Singapore
Uns N06600 Nickel Alloy Lj Flanges Lap Joint Flanges Philippines, France, Australia, UK, Nigeria
Stainless Steel Lap Joint Flanges 150# Raised Face Oman, Malaysia, Hong Kong, UAE
A105 Lap Joint Blind Flanges Chile, Italy, Iran, Singapore
Api 6a Standard Blind Aluminum Lap Joint Flanges United Arab Emirates (UAE), Turkey, Norway, Malaysia
Nickel Alloy Lap Joint Flange 1/2" 300# Dn15 Lj Flange Netherlands, Malaysia, Russia, Dubai
Stainless Steel Ansi B16.5 Lap Joint Class 300 Flange Egypt, Spain, Mexico, UK
Stainless Steel Lap Joint Loose Flanges United Kingdom -UK, Europe, Malaysia, UAE
Astm A105 Flat Face Lap Joint Flanges UK, Canada, Poland, Ellington -United States
Ansi Standard Ss316 Class 150lb Loose Joint Flanges Philippines, Malaysia, Canada, Singapore
Dn50 Class 150 Lap Joint Flanges Europe, Japan, Romania, Malaysia
Ansi B16.5 Stainless Steel Forged Lap Joint Flanges Sweden, Colombia, Malaysia, China
Titanium Lap Joint Flanges Malaysia, Taiwan, Los Alamos -Mexico, Philippines
Asme B16.5 Class 150 Rtj Lap Joint Flanges Singapore, South Korea, NY 12203 (USA), Malaysia