Lap Joint Flanges

ASME B16.5 Stainless Steel Vanstone Flange and Carbon Steel Loose Flanges manufacturer in UAE


Lap Joint Flanges

ASME B16.5 Lap Joint Flanges Advantages And Disadvantages

The lap joint flange benefits from two distinct benefits in use due to its composite two-piece construction. Consider a lapped joint piping link in which all "wetted" sections require a costly alloy to withstand corrosion. The ASME B16.5 Lap Joint Flanges can be built of a corrosion-resistant but costly alloy. While the lap joint flange that serves as a backing flange could be made of ordinary carbon steels. This is less expensive than a full alloy flange. There are some drawbacks to using lap joint flanges. Contaminants can easily collect in the fissures generated between the internal face of the flange bore of the stub ends. And the contaminates that have accumulated could cause crevice corrosion.

How To Install Stainless Steel Lap Joint Flanges

To begin, ensure that the matting sides come together properly. Plumb when you install the pipe and flange, particularly when dealing with Stainless Steel Lap Joint Flanges. Once the right gasket is in place, the bolt holes are matched up. The flanges have a specified spacing width that binds the flanges together. The spud wrench has a firm mark that you drive into the holes and manoeuvre around the misaligned bolt. Before transporting, be sure to lubricate and tighten the bolts.

Check Difference Between Lap Joint And Slip On Flange, supplier of SS 304 LJ Flange and ASTM A105 Lapped Joint Flanges in Middle East as per EN 1092-1

Vanstone Flange Vs Lap Joint Flange

The lap joint flange hovers on the pipe, allowing for simple bolting. Lap Joint Flange are most commonly found on expansion joints or lined pipe systems made of mixed materials. They are also known as Back Up and a Vanstone Flange. These flanges are employed in combination with a Stub End.

What Is The Purpose Of A Carbon Steel Lap Joint Flanges

The Carbon Steel Lap Joint Flanges or stub-end combination are primarily utilised in piping systems that must be dismantled often for inspection. Because of its rapid bolt hole placement, it is also employed in the construction of large diameter or difficult-to-adjust systems.

View Class 150 To 2500 Carbon Steel Lap Joint Flanges dimensions, Key Features and Weight Chart, best price of ASME B16.5 Lap Joint Flanges in Dubai, Check Stud Bolt Length For Raised Face Lap Joint Flanges




Specialized in manufacturing

Lap Joint Flanges

ASME B16.5 Lap joint flanges use a stub end that is welded to the pipe.

Size

1/2 Inches To 24 Inches

Class

150 To 2500

ASTM

A105, A182, A694

ASME

B16.5
SS Lap Joint Flanges


Introduction Of Lapped Joint Flange



Lap Flange Vs Slip-on Flange
Lap Flanges Vs Slip-on Flanges
  • primary difference (Lap Flanges Vs Slip-on Flanges) being that the bore and face have a curved radius to accommodate a lap joint stub-end.
  • Lap Flange : lap joint flanges is a two-piece device that resembles both weld-neck flange and a loose slip-on flanges
  • Slip-on Flange : slip on flange is simply a ring that is fitted over the pipe end.
Vanstone Flanges Key Features
Vanstone Flanges Key Features
  • Freedom to swivel across the plpe facilitates the lining up of opposing flange bolt holes.
  • Lack of contact with the fluid withinside the pipe often allows using of inexpensive carbon steel flanges with corrosion resistant pipe.
  • In systems which erode or corrode quickly, the flanges may be salvaged for re-use.
Lap Joint Flange Vs Weld Neck
Lap Joint Flanges Vs Rolled Angle Rings
  • Lap Joint Flanges : Lap joint flanges are one such flange type popular in both piping and duct system design.
  • Rolled Angle Rings Flanges :Rolled Angle Rings which are also known as Vanstone Rings, have similar benefits to Lap Joint Stub Ends with similar designs and installation requirements.

Lapped Joint Flange Specification


Specifications Lap Joint Flanges
Testing Hydrostatic testing machine
Magnetic particle detector
Direct-reading Spectrograph
UI trasonic flaw detector
Equipment Pushing Machine
Press machine
electric bevelling machine
Payment Type L/C,T/T,D/P,Paypal
Supporting Material For Flanges Gasket/ Ring Joint/ Flanges Bolts
Certificate ISO
Size 1/2” to 24”
Class Class 150 to Class 2500
Transportation In Air & Ocean and Land
Lap Joint Flanges Manufacturer In UAE 1200 ton per month (Manufacturing Productivity)
Available Packing Packing In Plywood Box And Plywood Pallet
Brand Name Schulzmann
Methods Of Forging Casting
Forging
Rolling
Cutting
Supply Ability 1000 Ton Per Month
Use In Marine & dredging
Sanitation
Process Instrumentation
Oil and Gas
Petrochemical/ Refinery/Chemical
Power etc.


Lap Joint Flange Price List


Description Price In US ($)
INC.825, 2 INCH, LAP JOINT FLANGE, 300# US $1614.41 Per KG
F316L, 2" LAP JOINT, 1500#, FLANGE US $188.06 Per KG
INC.825, 2" LAP JOINT, 150LB US $1559.44 Per KG
A350 LF2, 2", LAP JOINT, 2500# US $2864.28 Per KG
A350 LF2, 2" LAP JOINT, 300# FLANGE US $131.16 Per KG
F316L, 2 1/2", LAP JOINT, 1500# FLANGE US $2068.65 Per KG
A105N, 1 1/2, LAP JOINT, 300#, FLANGE US $50.15 Per KG
INC.625, 2", LAP JOINT, 300# FLANGE US $1874.80 Per KG
A105N, 2" LAP JOINT, 600# FLANGE US $118.62 Per KG
INC.825, 2" LAP JOINT, 1500#, FLANGE US $10731.88 Per KG
A105N, 1 1/2" LAP JOINT, 150# FLANGE US $154.30 Per KG
A350 LF2, 3", LAP JOINT, 600#, FLANGE US $663.51 Per KG
F316L, 3", LAP JOINT, CLASS 1500, FLANGE US $376.11 Per KG


Types Of Lap Joint Pipe Flanges


Stainless Steel Lap Joint Flanges

Stainless Steel Lap Joint Flanges

Loose Flanges

Loose Flanges

LJ Flanges

LJ Flanges

Lapped Joint Flange

Lapped Joint Flange

Vanstone Flanges

Vanstone Flanges

SS 304 Lap Joint Flange

SS 304 Lap Joint Flange

Stainless Steel Vanstone Flange

Stainless Steel Vanstone Flange

Raised Face Lap Joint Flange

Raised Face Lap Joint Flange

Carbon Steel Lap Joint Flange

Carbon Steel Lap Joint Flange

ASTM A105 Lap Joint Flange

ASTM A105 Lap Joint Flange

Lap Joint Backing Flanges

Lap Joint Backing Flanges

Flat Face Lap Joint Flanges

Flat Face Lap Joint Flanges


ASME B16.5 Lap Joint Flange Dimensions In MM


Class 150 Lap Joint Flanges Dimensions In MM

ASME B16.5 Lap Joint Flange Dimensions In MM

Size Inches D In (MM) X In (MM) t In (MM) B3 In (MM) T3 In (MM)
1/2 89 30.2 11.2 22.9 15.7 3.0
3/4 99 38.1 12.7 28.2 15.7 3.0
1 108 49.3 14.2 35.1 17.5 3.0
117 58.7 15.7 43.7 20.6 4.8
127 65.0 17.5 50.0 22.4 6.4
2 152 77.7 19.1 62.5 25.4 7.9
178 90.4 22.4 75.4 28.4 7.9
3 191 108.0 23.9 91.4 30.2 9.7
216 122.2 23.9 104.1 31.8 9.7
4 229 134.9 23.9 116.8 33.3 11.2
5 254 163.6 23.9 144.5 36.6 11.2
6 279 192.0 25.4 171.5 39.6 12.7
8 343 246.1 28.4 223.3 44.5 12.7
10 406 304.8 30.2 277.4 49.3 12.7
12 483 365.3 31.8 328.2 55.6 12.7
14 533 400.1 35.1 360.2 79.2 12.7
16 597 457.2 36.6 411.2 87.4 12.7
18 635 505.0 39.6 462.3 96.8 12.7
20 699 558.8 42.9 514.4 103.1 12.7
24 813 663.4 47.8 616.0 111.3 12.7


Grade Of ASTM A182 Stainless Steel Lap Joint Flanges




Class 300 Lap Joint Flanges Dimensions In MM

Size Inches D In (MM) X In (MM) t In (MM) B3 In (MM) T3 In (MM)
1/2 95 38.1 14.2 22.9 22.4 3.0
3/4 117 47.8 15.7 28.2 25.4 3.0
1 124 53.8 17.5 35.1 26.9 3.0
133 63.5 19.1 43.7 26.9 4.8
155 69.9 20.6 50.0 30.2 6.4
2 165 84.1 22.4 62.5 33.3 7.9
191 100.1 25.4 75.4 38.1 7.9
3 210 117.3 28.4 91.4 42.9 9.7
229 133.4 30.2 104.1 44.5 9.7
4 254 146.1 31.8 116.8 47.8 11.2
5 279 177.8 35.1 144.5 50.8 11.2
6 318 206.2 36.6 171.5 52.3 12.7
8 381 260.4 41.1 222.3 62.0 12.7
10 445 320.5 47.8 277.4 66.5 12.7
12 521 374.7 50.8 328.2 101.6 12.7
14 584 425.5 63.8 360.2 111.3 12.7
16 648 482.6 57.2 411.2 120.7 12.7
18 711 533.4 60.5 462.3 130.0 12.7
20 775 587.2 63.5 514.4 139.7 12.7
24 914 701.5 69.9 616.0 152.4 12.7


Class 600 Lap Joint Flanges Dimensions In MM

Size Inches D In (MM) X In (MM) t In (MM) B3 In (MM) T3 In (MM)
1/2 95 38.1 14.2 22.9 22.4 3.0
3/4 117 47.8 15.7 28.2 25.4 3.0
1 124 53.8 17.5 35.1 26.9 3.0
133 63.5 20.6 43.7 28.4 4.8
155 69.9 22.4 50.0 31.8 6.4
2 165 84.1 25.4 62.5 36.6 7.9
191 100.1 28.4 75.4 41.1 7.9
3 210 117.3 31.8 91.4 46.0 9.7
229 133.4 35.1 104.1 49.3 9.7
4 273 152.4 38.1 116.8 53.8 11.2
5 330 189.0 44.5 144.5 60.5 11.2
6 356 222.3 47.8 171.5 66.5 12.7
8 419 273.1 55.6 222.3 76.2 12.7
10 508 342.9 63.5 277.4 111.3 12.7
12 559 400.1 66.5 328.2 117.3 12.7
14 603 431.8 69.9 360.2 127.0 12.7
16 686 495.3 76.2 411.2 139.7 12.7
18 743 546.1 82.6 462.3 152.4 12.7
20 813 609.6 88.9 514.4 165.1 12.7
24 940 717.6 101.6 616.0 184.2 12.7


Class 900 Lap Joint Flanges Dimensions In MM

Size Inches D In (MM) X In (MM) t In (MM) B3 In (MM) T3 In (MM)
1/2 121 38.1 22.4 22.9 31.8 3.0
3/4 130 44.5 25.4 28.2 35.1 3.0
1 149 52.3 28.4 35.1 41.1 3.0
159 63.5 28.4 43.7 41.1 4.8
178 69.9 31.8 50.0 44.5 6.4
2 216 104.6 38.1 62.5 57.2 7.9
244 124.0 41.1 75.4 63.5 7.9
3 241 127.0 38.1 91.4 53.8 9.7
4 292 158.8 44.5 116.8 69.9 11.2
5 349 190.5 50.8 144.5 79.2 11.2
6 381 235.0 55.6 171.5 85.9 12.7
8 470 298.5 63.5 222.3 114.3 12.7
10 546 368.3 69.9 277.4 127.0 12.7
12 610 419.1 79.2 328.2 142.7 12.7
14 641 450.9 85.9 360.2 155.4 12.7
16 705 508.0 88.9 411.2 165.1 12.7
18 787 565.2 101.6 42.3 190.5 12.7
20 857 622.3 108.0 514.4 209.6 12.7
24 1041 749.3 139.7 616.0 266.7 12.7


Class 1500 Lap Joint Flanges Dimensions In Inch

Class 1500 Lap Joint Flanges Dimensions In Inch

Normal Pipe Size In Inch ID In Inch OD In Inch Bolt Circle In Inch Raised Face (R) In Inch R/F In Inch H In Inch R/F Thickness (T) In Inch T1 In Inch F/F Thickness (T2) In Inch Bolt Hole (B) In Inch Number of Bolts Holes
1/2 0.88 4.75 3.25 1.38 .250 1.50 1.50 0.88 1.25 0.88 4
3/4 1.09 5.13 3.50 1.69 .250 1.75 1.63 1.00 1.38 0.88 4
1 1.36 5.88 4.00 2.00 .250 2.06 1.88 1.13 1.63 1.00 4
1-1/4 1.70 6.25 4.38 2.50 .250 2.50 1.88 1.13 1.63 1.00 4
1-1/2 1.95 7.00 4.88 2.88 .250 2.75 2.00 1.25 1.75 1.13 4
2 2.44 8.50 6.50 3.63 .250 4.13 2.50 1.50 2.25 1.00 8
2-1/2 2.94 9.63 7.50 4.13 .250 4.88 2.75 1.63 2.50 1.13 8
3 3.57 10.50 8.00 5.00 .250 5.25 3.13 1.88 2.88 1.25 8
4 4.57 12.25 9.50 6.19 .250 6.38 3.81 2.13 3.56 1.38 8
5 5.66 14.75 11.50 7.31 .250 7.75 4.38 2.88 4.13 1.63 8
6 6.72 15.50 12.50 8.50 .250 9.00 4.94 3.25 4.69 1.50 12
8 8.72 19.00 15.50 10.63 .250 11.50 5.88 3.63 5.63 1.75 12
10 10.88 23.00 19.00 12.75 .250 14.50 6.50 4.25 6.25 2.00 12
12 12.88 26.50 22.50 15.00 .250 17.75 7.38 4.88 7.13 2.13 16


Class 2500 Lap Joint Flanges Dimensions In Inch

Normal Pipe Size In Inch ID In Inch OD In Inch Bolt Circle In Inch H In Inch T1 In Inch T2 In Inch RA In Inch Bolt Hole (B) In Inch Number of Bolts Holes
1/2 0.90 5.25 3.50 1.69 1.19 1.56 .12 0.88 4
3/4 1.11 5.50 3.75 2.00 1.25 1.69 .12 0.88 4
1 1.38 6.25 4.25 2.25 1.38 1.88 .12 1.00 4
1-1/4 1.72 7.25 5.13 2.88 1.50 2.06 .19 1.13 4
1-1/2 1.97 8.00 5.75 3.13 1.75 2.38 .25 1.25 4
2 2.46 9.25 6.75 3.75 2.00 2.75 .31 1.13 8
2-1/2 2.97 10.50 7.75 4.50 2.25 3.13 .31 1.25 8
3 3.60 12.00 9.00 5.25 2.63 3.63 .38 1.38 8
4 4.60 14.00 10.75 6.50 3.00 4.25 .44 1.63 8
5 5.69 16.50 12.75 8.00 3.63 5.13 .44 1.88 8
6 6.75 19.00 14.50 9.25 4.25 6.00 .50 2.13 8
8 8.75 21.75 17.25 12.00 5.00 7.00 .50 2.13 12
10 10.92 26.50 21.25 14.75 6.50 9.00 .50 2.63 12
12 12.92 30.00 24.38 17.38 7.25 10.00 .50 2.88 12


Grades Of Carbon Steel Lap Joint Flanges




LJ Flanges Temperature Ratings


Temperature (Dedgree C) Class Of Flanges
(150#) (300#) (400#) (600#) (900#) (1500#) (2500#)
-29 - 38 19.8 51.7 68.9 103.4 155 259 431
50 19.5 51.7 68.9 103.4 155 259 431
100 17.7 51.5 68.7 103.0 155 258 429
150 15.8 50.2 66.8 100.3 151 251 418
200 13.8 48.6 64.8 97.2 146 243 405
250 12.1 46.3 61.7 92.7 139 232 386
300 10.2 42.9 57.0 85.7 129 214 357
325 9.3 41.4 55.0 82.6 124 207 344
350 8.4 40.0 53.4 80.0 120 200 334
375 7.4 37.8 50.4 75.7 114 189 315
400 6.5 34.7 46.3 69.4 104 174 290
425 5.5 28.8 38.4 57.5 86.3 144 240
450 4.6 23.0 30.7 46.0 69.0 115 192
475 3.7 17.1 22.8 34.2 51.3 85.4 142
500 2.8 11.6 15.4 23.2 34.7 57.9 96.5
538 1.4 5.9 7.9 11.8 17.7 29.5 49.2


Lap Joint Flange Gasket Dimensions


Normal Pipe Size In Inch (I.D.) Gasket (O.D.) Gasket
Class 150 Class 300 Class 400 Class 600 Class 900
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
5 5.56 7.75 8.50 8.375 9.50 9.75
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
10 10.75 13.375 14.25 14.125 15.75 17.125

Refer Facing Types Of 4 Inch Stainless Steel Lap Joint Flanges and Gasket Dimensions 150#-900#, in a short span of time we became one of the favourite manufacturer & exporter of Galvanized Lap Joint Flanges in Qatar, Iran, Turkey and Kuwait


Stud Bolt Length For Lap Joint Flange


CLass 150# 300# 600# 900# 1500# 2500#
Dia. Of (A) 305 321 345 368 368 375
Dia. Of
(D)
405 445 510 545 585 675
Wall Thickness Of
(B)
30.2 47.7 63.5 69.9 108 165.1
Dia. Of
K
362 387.4 431.8 469.9 482.6 539.8
Hight 49 95 111 127 178 229
Nimber
L
12 16 16 16 12 12
Dia.
L
25.4 28.6 34.9 38.1 50.8 66.7
Stud Bolts Dia. And Length
Dia. In
(Inch)
7/8 1 1.1/4 1.3/8 1.7/8 2.1/2
Length In
millimeter
115 160 215 235 335 490


Facing Types Of Carbon Steel Lap Joint Flange


Facing Types

  • Flat Face (FF)
  • Raised Face (RF)
  • Ring Type Joint (RTJ)


ASTM A182 F316 Lap Joint Flange manufacturer in UAE offers RFLJ/ LJFF Flange in SCH 40 and PN16 pressure, buy Mild Steel/ Duplex, Alloy Steel Lap Joint Pipe Flanges at factory price in Dubai


Stainless Steel Lap Joint Flanges Weight Chart


Nominal Pipe Size Lap Joint
½ 1
¾ 2
1 2
3
3
2 5
8
3 9
11
4 13
5 15
6 19
8 30
10 43
12 64
14 105
16 140
18 160
20 195
22 245
24 275


Welding Of Stainless Lap Joint Flange


A lap Joint flanges Is a two-component assembly, with a stub end that has a lap-Joint ring flanges located over it. The stub end Is then butt welded to the plpe, and the flanges ring can be rotated to allgn with the mating flanges. This type of flanges connection is particularly useful for large or hard-to-adjust flanges.



Grades Of Alloy Steel Van Stone Flange




Van Stone Flange Dimensions


Van Stone Flange Dimensions

Size D1 D2 D3 d d1 d2 H T I n-Øe
2” 5.99 4.77 2.99 2.01 2.37 2.39 1.69 0.19 1.50
3” 7.56 5.99 4.26 3.03 3.49 3.52 2.13 1.02 1.88
4” 9.02 7.53 5.24 4.02 4.49 4.52 2.52 1.10 2.25
6” 11.19 9.50 7.53 6.15 6.62 6.66 3.35 1.26 3.00
8” 13.51 11.74 9.38 8.04 8.62 8.67 4.65 1.42 4.02
10” 16.00 14.26 12.21 10.09 10.75 10.80 5.91 1.65 4.85
  • Sch 80 Van Stone Flanges
  • Conforms to ASTM D-2467
  • Loose Ring Flanges
  • 150 PSI @ 73.4 F
  • Schedule 80
  • Flange sizes 2" - 10"