Stainless Steel Backup Flange

Stainless Steel Backup Flange

We are leading Ductile Iron Split Backup Flange Manufacturer in India

As typical behavior of several grades of stainless steels, the Stainless Steel Backup Flange we manufacture offer a set of very attractive properties; from being resistant to corrosion in various mediums to having good tensile strength properties. Although one has to note that using the appropriate grade of stainless steel in the manufacture of these Lap Joint Backing Flange can aid in increasing the service life as well as getting an enhanced performance.

Check online price list of Galvanized Backing Flange

On the other hand, we also manufacture the more cost efficient Carbon Steel Backup Flange, which while being less costly proves to have moderate resistance to corrosion as well as moderate tensile strength properties. In order to increase the corrosion resistance properties of these split backup flanges we often customize them according to the needs of our clients by applying some finishes. Commonly, these back up flanges are either prime painted or hot dipped galvanized, depending on the application it has to be used for.

Often used in conjunction with Stub Ends, Backup Flanges are recognized as either Lap Joint Flange or Van Stone Flange or backing flanges. When they are used in combination, this Ductile Iron Backup Flange is to be slipped over the pipe, before the stub end has been welded on. Therefore the Stub-End will form a seal against the Backup Flange Dimensions that it will meet. Then this pipe back up flanges is free to rotate until such a period when it has been bolted up.

Are you looking for 304/316 Stainless Steel Pipe Backup Flanges Supplier in Mumbai

Stainless Steel Backup Flange

Stainless Steel Backup Flange


Ductile Iron Split Backup Flange

Ductile Iron Split Backup Flange


Galvanized Backing Flange

Galvanized Backing Flange



Stainless Steel Backup Flange Specifications

Manufacturer of Stainless Steel Backup Flange
ANSI Pressure Class 150LBS, 900LBS, 300LBS, 600LBS, 1500LBS, 2500LBS, Pipe Backup Flanges
Meets Standards ASME, BS, EN, JIS, MSS, SABS 1123, API, GOST 12821-80, GOST 33259, ANSI, UNI, ASTM, API, ISO, DIN, SP, Di Backup Flange
EN 1092-1/ EN 1092-2 Stainless Steel Backup Flangee standard
25Bar, 10Bar, 6Bar, 16Bar, 40Bar, Back Flange
BS Standards BS4504, BS4504, BS1560, BS10, Hdpe Backup Flange
Japanese Industrial Standards - JIS B2220 30K, 10K, 5K, 40K, 20K, 16K, 63K, Galvanized Backing Flange
DIN Standards DIN 2628, DIN 2566, DIN 2637, DIN 2638, DIN 2635, DIN 2656, DIN 2638, DIN 2641, DIN 2566, DIN 2573, DIN 2631, DIN 2637, DIN 2633, DIN 2565, 2631, DIN 2636, DIN 2635, DIN 2527, DIN 2502, DIN 2630, DIN 2655, DIN 2629, DIN 2527, DIN 2633, DIN 2503, DIN 2627, DIN 2634, DIN 2642, DIN 2632, DIN 2576, DIN 2576, DIN 2636, DIN 2573, DIN 2673, DIN 2628, DIN 2634, Back Flange
Wall Thickness Sch30, Sch10, Sch20, STD, Sch40, Sch60, EXT-Hvy, Sch100, Sch120, Sch80, Sch140, Sch160, XX-Hvy, Ductile Iron Backup Flange
Types Screwed, Threaded, Plate, Forged, Welded, Lap Joint Backing Flange
Most common Back Up flange processes followed by manufacturers
  • Cutting
  • Casting
  • Open die forging
  • Closed die forging
  • Roll forging
We also supply
  • Sealing Gaskets
  • Ring Joint Gasket
  • Flange Bolts as Required
Flange faces
  • Flat (FF)
  • Ring joint (RTJ)
  • Raised (RF)
  • Lap joint
  • Tongue and groove (T&G)
  • Male and female (M&F)
Stainless Steel Backup Flange Standard
  • ASME B16.5 (Most popular)
  • ASME B16.47 Series B & A
  • ASME B16.48
  • GOST
  • BS4504
DIN Standards
  • DIN 2501
  • DIN 2633
  • DIN 2627
  • DIN 2642
  • DIN 2635
  • DIN 2543
  • DIN 2527
PN Rating PN40, PN10, PN6, PN16, PN25, PN64, Backing Ring Flange
Quality Inspection
  • EN 10204/3.1B MTC
  • 100% Radiography Test Report for any Cracks or any incomplete penetration
  • Raw Materials Certificate
  • Third Party Inspection Report
Value Added Services
  • CNC Machining
  • Large Diameter Stainless Steel Backup Flange
  • Customised Di Backup Flange

Pipe Backup Flanges Price in India

Description Price in US $ Price in INR Recent supply location
Ductile iron ASTM A536 1/2" to 22" convoluted Backup flange US $ 5.17 per kg INR 394.67 per Kg Turkey
2" DI ductile cast iron Backing HDPE pipe backup flange US $ 8.27 per kg INR 631.46 per Kg United Arab Emirates
SS 2" 4" Stainless Steel Backup Flange US $ 5.17 per kg INR 394.67 per Kg South Africa
ductile cast 6" iron backup flange US $ 10.34 per kg INR 789 per Kg Kuwait

Different types of Back Flange

Di Backup Flanges

Di Backup Flanges

Pipe Backup Flanges

Pipe Backup Flanges

Hdpe Backup Flanges

Hdpe Backup Flanges

Split Backup Flanges

Split Backup Flanges

Stainless Steel Backup Flanges

Stainless Steel Backup Flanges

Galvanized Backing Flanges

Galvanized Backing Flanges

Back Flange

Back Flange

Ductile Iron Backup Flange

Ductile Iron Backup Flange

Back Up Flange

Back Up Flange

Lap Joint Backing Flange

Lap Joint Backing Flange

Carbon Steel Backup Flange

Carbon Steel Backup Flange

Backing Ring Flange

Backing Ring Flange


Pipe Backup Flanges Pressure Rating

Pipe Backup Flanges Pressure Rating

We are leading Stockist and Supplier of Stainless Steel Backup Flange

Backup Flanges Dimensions

Dimension Inner Diameter Outer Diameter Bolt Holes and Diam Thickness-T PCD-K Bolt Size Weight
63 78 150 4×18 11 114 M16 1.01
75 92 165 4×18 11 127 M16 1.20
125 135 215 8×18 13 178 M16 2.00
450 470 640 12×26 30 584 M24 31.70
710 740 910 20×30 56 845 M27 88.00
90 108 185 4×18 11 146 M16 1.45
110 128 215 4×18 13 178 M16 2.30
225 238 370 8×18 19 324 M16 8.90
355 376 525 12×26 30 470 M24 23.40
160 178 280 8×18 13 235 M16 3.50
630 645 825 16×30 48 756 M27 68.30
180 188 280 8×18 13 235 M16 6.30
200 235 335 8×18 19 292 M16 6.00
225/200* 240 335 8×18 19 292 M16 6.20
250 288 405 8×22 19 356 M20 8.80
280 294 405 8×22 19 356 M20 8.20
315 338 455 12×22 23 406 M20 11.70
400 430 580 12×26 30 521 M24 26.50
500 533 705 16×26 38 641 M24 47.40
800 843 1060 20×36 56 984 M33 137.00
900 947 1175 24×36 66 1092 M33 184.00
1000 1050 1255 24×36 66 1175 M33 178.00

PN6 Split Backup Flange Dimensions Standard

Nominal Bore in Inch Outer Diameter in MM Nominal Size PCD Outer Diameter Thickness Bolt Numbers of Bolts Approx Weight. (kg)
1/2 20 15 65 95 7 M12 4 0.25
3/4 25 20 75 105 7 M12 4 0.35
1 32 25 85 115 8 M12 4 0.45
11/4 40 32 100 140 8 M16 4 0.70
11/2 50 40 110 150 8 M16 4 0.85
2 63 50 125 165 8 M16 4 1.00
21/2 75 65 145 185 8 M16 4 1.15
3 90 80 160 200 10 M16 8 1.30
4 110 100 180 220 12 M16 8 1.70
5 140 125 210 240 12 M16 8 2.20
6 160 150 240 285 12 M20 8 2.45
8 225 200 295 340 12 M20 8 3.10
10 280 250 350 395 15 M20 12 5.45
12 315 300 400 445 20 M20 12 9.60
14 355 350 460 520 20 M22 16 12.80
16 400 400 515 580 22 M22 16 18.10

Table D Hdpe Backup Flange Dimension Chart

Nominal Bore in Inch Outer Diameter in Mm Nominal Size PCD Thickness Outer Diameter Bolt Numbers of Bolts Approx Weight. (kg)
1/2 20 15 65 7 95 1/2 4 0.25
3/4 25 20 73 7 102 1/2 4 0.35
1 32 25 83 8 114 1/2 4 0.45
11/4 40 32 87 8 121 1/2 4 0.70
11/2 50 40 98 8 133 1/2 4 0.85
2 63 50 114 8 152 5/8 4 1.00
21/2 75 65 127 8 165 5/8 4 1.15
3 90 80 146 10 184 5/8 4 1.30
4 110 100 178 12 216 5/8 8 1.70
5 140 125 210 12 254 5/8 8 2.20
6 160 150 235 12 279 3/4 8 2.45
8 225 200 292 12 337 3/4 8 3.10
10 280 250 356 15 406 3/4 12 5.45
12 315 300 406 20 457 7/8 12 9.60
14 355 350 470 20 527 7/8 12 12.80
16 400 400 521 22 578 1 12 18.10

PN16 Di Backup Flange Dimensions

Nominal Bore in Inch Nominal Size Outer Diameter in MM Outer Diameter PCD Thickness Bolt Numbers of Bolts Approx Weight. (kg)
1/2 15 20 95 65 7 M12 4 0.25
3/4 20 25 105 75 7 M12 4 0.35
1 25 32 115 85 8 M12 4 0.45
11/4 32 40 140 100 8 M16 4 0.70
11/2 40 50 150 110 8 M16 4 0.85
2 50 63 165 125 8 M16 4 1.00
21/2 65 75 185 145 8 M16 4 1.15
3 80 90 200 160 10 M16 8 1.30
4 100 110 220 180 12 M16 8 1.70
5 125 140 240 210 12 M16 8 2.20
6 150 160 285 240 12 M20 8 2.45
8 200 225 340 295 12 M20 12 3.10
10 250 280 405 355 15 M24 12 5.45
12 300 315 460 410 20 M24 12 9.60
14 350 355 520 470 20 M30 16 12.80
16 400 400 580 525 22 M30 16 18.10

Check Sizes, Dimension and Pressure Rating of Ductile Iron Pipe Backup Flanges

Ductile Iron Backup Flange Dimensions

Nominal Size Outside Diameter
Inside Diameter – IPS
Inside Diameter – AFR
Thiickness
Bolt Circle Diameter Of Holes No. of Bolt Holes 45 Degree
Bevel
(B)
Weight Each
(lbs)
1⁄2 3.50 0.90 0.50 2.38 0.625 4 0.250 1.0
3⁄4 3.88 1.11 0.50 2.75 0.625 4 0.250 1.4
1 4.25 1.38 1.75 0.50 3.13 0.625 4 0.250 1.7
11⁄4 4.63 1.72 2.00 0.50 3.50 0.625 4 0.250 1.8
11⁄2 5.00 1.97 2.25 0.50 3.88 0.625 4 0.250 2.0
2 6.00 2.46 2.80 0.50 4.75 0.750 4 0.250 3.0
21⁄2 7.00 2.97 3.31 0.50 5.50 0.750 4 0.250 3.9
3 7.50 3.60 3.94 0.50 6.00 0.750 4 0.250 4.0
4 9.00 4.60 4.94 0.56 7.50 0.750 8 0.250 6.5
5 10.00 5.69 6.10 0.63 8.50 0.875 8 0.250 7.0
6 11.00 6.75 7.20 0.63 9.50 0.875 8 0.250 8.0
8 13.50 8.75 9.25 0.63 11.75 0.875 8 0.312 11.5
10 16.00 10.95 11.44 0.63 14.25 1.000 12 0.312 15.0
12 19.00 12.95 13.44 0.75 17.00 1.000 12 0.312 26.0
14 21.00 14.20 14.81 0.75 18.75 1.125 12 0.312 34.0
16 23.50 16.20 16.91 0.75 21.25 1.125 16 0.375 37.0
18 25.00 18.20 18.91 0.88 22.75 1.250 16 0.375 42.0
20 27.50 20.25 20.91 0.88 25.00 1.250 20 0.375 51.0
24 32.00 24.25 24.91 1.00 29.50 1.375 20 0.375 76.0
30 38.75 30.25 30.91 1.00 36.00 1.375 28 0.500 104.0
36 46.00 36.25 36.91 1.13 42.75 1.625 32 0.500 150.0
42 53.00 42.28 42.91 1.25 49.50 1.625 36 0.500 208.0
48 59.50 48.28 48.91 1.25 56.00 1.625 44 0.500 246.0

20 years of Experience as a supplier of these materials in below mentioned locations

Malaysian Petrochemicals Association- Malaysia

Malaysian Petrochemicals Association- Malaysia

Atlantic Gulf & Pacific Company- Philippines

Atlantic Gulf & Pacific Company- Philippines

Scott Chemicals- Australia

Scott Chemicals- Australia


Kuwait National Petroleum Company- Kuwait

Kuwait National Petroleum Company- Kuwait

Al Masaood Oil & Gas- Abu Dhabi

Al Masaood Oil & Gas- Abu Dhabi

Tanajib Aramco Plant- Saudi Arabia

Tanajib Aramco Plant- Saudi Arabia