stainless steel sorf flange sorf flange exporters slip on flanges
slip on raised face sorf flanges suppliers
importer of sorf flanges stainless steel sorf flange
 

SORF Flange


SORF Flange
It is Slip on Raised Face (SORF) Flange.

Slip-on (SO) Flanges are preferred by some contractors, over the Weld-neck, because of the lower initial cost. However, this may be offset by the added cost of the two fillet welds required for proper installation. The strength of the slip-on flange is ample for it's rating, but its life under fatigue conditions is considered to be only one-third that of the weld-neck flange.

The slip-on flange may be attached to the end of a piece of pipe or to one or more ends of a pipefitting. The slip-on flange is positioned so the inserted end of the pipe or fitting is set back or short of the flange face by the thickness of the pipe wall plus 1/8 of an inch. This allows for a fillet weld inside the SO flange equal to the thickness of the pipe without doing any damage to the flange face. The back or outside of the flange is also welded with a fillet weld.

A variation of the Slip-on flange also exists. This is the Slip-on Reducing Flange. This is simply a larger (say a 14") Slip-on flange blank that, instead of the Center (pipe) hole being cut out (or drilled out) for 14" pipe it is cut out for a 6" pipe. The SO Reducing flange is basically used for reducing the line size where space limitations will not allow the length of a weld neck flange and reducer combination. The use of the Slip-on Reducing Flange should only be used where the flow direction is from the smaller size into the larger size.


These Flanges are available in the following range.
Stainless Steel: ASTM A182 F304, F304L, F304H, F316, F316L, F316Ti, F310, F310S, F321, F321H, F317, F347, F347H, F904L.
Duplex Stainless Steel: UNS S31803, UNS S32750
Carbon Steel: ASTM A105,
Alloy Steel: ASTM A182 F1, F11, F22, F5, F9, F91
Nickel Alloys: Monel 400 & 500, Inconel 600 & 625, Incoloy 800, 825, Hastelloy C22, C276
Copper Alloys: Copper, Brass & Gunmetal
Size: 1/8" NB To 48"NB and also Custom Specific.
Class: 150#, 300#, 400#, 600#, 900#, 1500#, 2500#.
Dimensional Standard ANSI: 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: BS 4504, BS4504, BS1560, BS10

sorf flange exporters

DIMENSIONS of CLASS 150 FLANGES AS PER ANSI B 16.5
NB A D B G K E H L No.of Holes
½” 15 30.2 88.9 11.1 34.9 60.3 22.3 15.9 15.9 4
¾” 20 38.1 98.4 12.7 42.9 69.8 27.7 15.9 15.9 4
1” 25 49.2 107.9 14.3 50.8 79.4 34.5 17.5 15.9 4
1 ¼” 32 58.7 117.5 15.9 63.5 88.9 43.2 20.6 15.9 4
1 ½” 40 65.1 127.0 17.5 73.0 98.4 49.5 22.2 15.9 4
2” 50 77.8 152.4 19.0 92.1 120.6 62.0 25.4 19.0 4
2 ½” 65 90.5 177.8 22.2 104.8 139.7 74.7 28.6 19.0 4
3” 80 107.9 190.5 23.8 127.0 152.4 90.7 30.2 19.0 4
4” 100 134.9 230.0 23.8 157.2 190.5 116.1 33.3 19.0 8
5” 125 163.5 254.0 23.8 185.7 215.9 143.8 36.5 22.2 8
6” 150 192.1 279.4 25.4 215.9 241.3 170.7 39.7 22.2 8
8” 200 246.1 342.9 28.6 269.9 298.4 221.5 44.4 22.2 8
10” 250 304.8 406.4 30.2 323.8 361.9 276.3 49.2 25.4 12
12” 300 365.1 482.6 31.8 381.0 431.8 327.1 55.6 25.4 12
14” 350 400.0 533.4 34.9 412.7 476.2 359.1 57.1 28.6 12
16” 400 457.2 596.9 36.5 469.9 539.7 410.5 63.5 28.6 16
18” 450 504.8 635.0 39.7 533.4 577.8 461.8 68.3 31.7 16
20” 500 558.8 698.5 42.9 584.2 635.0 513.1 73.0 31.7 20
24” 600 663.6 812.8 47.6 692.1 749.3 615.9 82.5 34.9 20


DIMENSIONS of CLASS 300 FLANGES AS PER ANSI B 16.5
NB A D B G K E H L No. of Holes
½” 15 38.1 95.2 14.3 34.9 66.7 22.3 22.2 15.9 4
¾” 20 47.6 117.5 15.9 42.9 82.5 27.7 25.4 19.0 4
1” 25 54.0 123.8 17.5 50.8 88.9 34.5 27.0 19.0 4
1 ¼” 32 63.5 133.3 19.0 63.5 98.4 43.2 27.0 19.0 4
1 ½” 40 69.8 155.6 20.6 73.0 114.3 49.5 30.2 22.2 4
2” 50 84.1 165.1 22.2 92.1 127.0 62.0 33.3 19.0 8
2 ½” 65 100.0 190.5 25.4 104.8 149.2 74.7 38.1 22.2 8
3” 80 117.5 209.5 28.6 127.0 168.3 90.7 42.9 22.2 8
4” 100 146.0 254.0 31.8 157.2 200.0 116.1 47.6 22.2 8
5” 125 177.8 279.4 34.9 185.7 234.9 143.8 50.8 22.2 8
6” 150 206.4 317.5 36.5 215.9 269.9 170.7 52.4 22.2 12
8” 200 260.3 381.0 41.3 269.9 330.2 221.5 61.9 25.4 12
10” 250 320.7 444.5 47.6 323.8 387.3 276.3 66.7 28.6 16
12” 300 374.6 520.7 50.8 381.0 450.8 327.1 73.0 31.7 16
14” 350 425.4 584.2 54.0 412.7 514.3 359.1 76.2 31.7 20
16” 400 482.6 647.7 57.2 469.9 571.5 410.5 82.5 34.9 20
18” 450 533.4 711.2 60.3 533.4 628.5 461.8 88.9 34.9 24
20” 500 587.4 774.7 63.5 584.2 685.8 513.1 95.2 34.9 24
24” 600 701.7 914.4 69.8 692.1 812.8 615.9 106.4 41.3 24

DIMENSIONS of CLASS 600 FLANGES AS PER ANSI B 16.5
NB A D B G K E H L No. of Holes
½” 15 38.1 95.2 14.3 34.9 66.7 22.3 22.2 15.9 4
¾” 20 47.6 117.5 15.9 42.9 82.5 27.7 25.4 19.0 4
1” 25 54.0 123.8 17.5 50.8 88.9 34.5 27.0 19.0 4
1 ¼” 32 63.5 133.3 20.6 63.5 98.4 43.2 28.6 19.0 4
1 ½” 40 69.8 155.6 22.2 73.0 114.3 49.5 31.7 22.2 4
2” 50 84.1 165.1 25.4 92.1 127.0 62.0 36.5 19.0 8
2 ½” 65 100.0 190.5 28.6 104.8 149.2 74.7 41.3 22.2 8
3” 80 117.5 209.5 31.8 127.0 168.3 90.7 46.0 22.2 8
4” 100 152.4 273.0 38.1 157.2 215.9 116.1 54.0 25.4 8
5” 125 188.9 330.2 44.4 185.7 266.7 143.8 60.3 28.6 8
6” 150 222.2 355.6 47.6 215.9 292.1 170.7 66.7 28.6 12
8” 200 273.0 419.1 55.6 269.9 349.2 221.5 76.2 31.7 12
10” 250 342.9 508.0 63.5 323.8 431.8 276.3 85.7 34.9 16
12” 300 400.0 558.8 66.7 381.0 488.9 327.1 92.1 34.9 20
14” 350 431.8 603.2 69.9 412.7 527.0 359.1 93.7 38.1 20
16” 400 495.3 685.8 75.2 469.9 603.2 410.5 106.4 41.3 20
18” 450 546.0 742.9 82.6 533.4 654.0 461.8 117.5 44.4 20
20” 500 609.6 812.8 88.9 584.2 723.9 513.1 127.0 44.4 24
24” 600 717.6 939.8 101.6 692.1 838.2 615.9 139.7 50.8 24


All dimensions are in millimeters unless otherwise indicated

 
slip on flanges   slip on raised face
-: Our Products Range :-