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SWRF vs RF Flange

SWRF vs RF Flange  

Top Grade Quality Blind RF Flange Manufacturer in India, Refer Specification

Raised Face Flanges Specification


Size Range of Socket Weld RF Flanges
Forged flanges
  • 1/2 to 2-inch
Raised Face Flange Pressure Ratings
Forged flanges
  • Class 150
  • Class 300
  • Class 600
  • Class 900
  • Class 1500
  • Class 2500
  Wall Thickness of WN RF Flanges
Forged flanges
  • Schedule 40 to 160

Types of RF Flanges

Forged flanges
  • Weld Neck Raised Face Flange
  • Slip On Raised Face Flanges
  • Blind Raised Face Flanges
  • Socket Weld Raised Face Flanges
   
  Advantages of Blind RF Flange
Forged flanges
  • Strength and Durability
  • Leak Prevention
  • Space-Saving Design
  • Ease of Installation
  • Cost-Effectiveness
 
Finish of Socket Weld Raised Face Flange
Forged flanges
  • 125 to 250 µin Ra (3 to 6 µm Ra).
Standards
Forged flanges
  • ASME B16.5
  • ASME B31.3
  •  ASTM A350 LF1/2
  • ASTM A105
  • ASTM A182 F5
  • ASTM A182 F91
  • ASTM A182 F9,
  • ASTM A182 F22,
  • ASTM A182 F11,
  • ASTM A182 F304
  • ASTM A182 F304L
  • ASTM A182 F316
  • ASTM A182 F316L

Raised Face Flanges Specification  

View Difference Between Socket Weld Raised Face Flange and RF Flange Meaning Including Flange Type, Connection Methods and Gasket Types

Difference Between SW Raised Face Flange and Raised Face Flange


SWRF vs RF Flange  
Feature Socket Weld Raised Face Flange Raised Face Flange
Height SWRF Flange: 1/4"
  • Blind RF Flange: 1/16"
  • Weld neck RF Flange: 1/16"
  • Slip on RF Flange: 1/16"
Connection Type
  • Socket Weld to Pipe
  • Weld neck
  • Slip-on
  • Butt weld
  • Threaded
Pipe Size Range
  • Smaller pipe sizes
  • Wide range of pipe sizes
Welding Requirement
  • Fillet welding on the outside of the flange
  • Depends on the type of RF flange
  • Weld neck (full penetration welding)
Raised Face
  • Small raised ring around bolt holes
  • Raised ring around bolt holes
Gasket Type
  • Flat gasket between flange faces
  • Flat gasket between flange faces
Function
  • Serves as a sealing surface
  • Serves as a sealing surface
Typical Applications
  • Small-bore piping systems
  • Various piping systems
Suitability
  • Low-pressure and temperature applications
  • Wide range of pressures and temperatures
Advantages
  • Good alignment in high-pressure systems
  • Good sealing
  • Widely available
  • Easy to align during installation
Disadvantages
  • Requires precise alignment during welding
  • Require more space as compared to socket weld flanges

Get Flange WN RF and Raised Face Flange in Pressure Class 150, 300, 600, 900, 1500 and 2500 at Lowest Price in Mumbai

Types of ANSI RF Flange With Height Range


Socket Weld Raised Face Flanges(150#, 300#, 600#, 1500#, 2500#)

1/16"

Blind Raised Face Flanges(150#, 300#, 600#, 900#, 1500#, 2500#)

1/4"

Weld Neck Raised Face Flanges(150#, 300#, 600#, 900#, 1500#, 2500#)

1/4"

Long Weld Neck Raised Face Flanges(150#, 300#, 600#, 900#, 1500#, 2500#)

3/4"

Slip On Raised Face Flanges(150#, 300#, 600#, 900#, 1500#, 2500#)

1/4"
Find Socket Weld RF Flange in Size Ranging From 1/2 inch to 4 inch, Check Dimension as per ASME B16.5

SW RF flange Dimensions & Weight Chart


Class 150
Pipe Normal Diam. (inch) 1/2″ 3/4″ 1″ 1-1/4″ 1-1/2″ 2″ 2-1/2″ 3″ 3-1/2″ 4″ 5″ 6″ 8″ 10″ 12″ 14″ 16″ 18″ 20″ 24″
(DN) 15 20 25 32 40 50 65 80 90 100 125 150 200 250 300 350 400 450 500 600
O.D. Flange    89 98.5 108 117.5 127 152.5 178 190.5 216 228.5 254 279.5 343 406.5 482.5 533.5 597 635 698.5 813
Number of Bolts 4 4 4 4 4 4 4 4 8 8 8 8 8 12 12 12 16 16 20 20
Thk. Of Flange Min  11.2 12.7 14.2 15.7 17.5 19.1 22.4 23.9 23.9 23.9 23.9 25.4 28.4 30.2 31.8 35.1 36.6 39.6 42.9 47.8
Diam. of Hub  30.2 38.1 49.3 58.7 65 77.7 90.4 108 122.2 134.9 163.6 192 246.1 304.8 365.3 400.1 457.2 505 558.8 663.4
Diameter of Raised Face  35.1 42.9 50.8 63.5 73.2 91.9 104.6 127 139.7 157.2 185.7 215.9 269.7 323.9 381 412.8 469.9 533.4 584.2 692.2
Bore  22.4 27.7 34.5 43.2 49.5 62 74.7 90.7 103.4 116.1 143.8 170.7 221.5 276.4 327.2 359.2 410.5 461.8 513.1 616
Diam. of Bolt Circle 60.5 69.9 79.3 88.9 98.6 120.7 139.7 152.4 177.8 190.5 215.9 241.3 298.5 362 431.8 476.3 539.8 577.9 635 749.3
Diam. of Bolt Holes 15.8 15.8 15.8 15.8 15.8 19.1 19.1 19.1 19.1 19.1 22.4 22.4 22.4 25.4 25.4 28.5 28.5 31.8 31.8 35.1
Diam. of Bolts (inch) 1/2″ 1/2″ 1/2″ 1/2″ 1/2″ 5/8″ 5/8″ 5/8″ 5/8″ 5/8″ 3/4″ 3/4″ 3/4″ 7/8″ 7/8″ 1″ 1″ 1 1/8″ 1 1/8″ 1 1/4″
LB 0.9 1.5 2 2.6 3.3 5.1 8.1 9.2 11.4 13 15.4 18.5 27.7 39.6 65 84 93 120 155 207
KG 0.4 0.7 0.9 1.2 1.5 2.3 3.7 4.2 5.2 5.9 7 8.4 12.6 18 29.5 38 42 54 70 94

Class 300
Pipe Normal Diam. Inch 3/4″ 1/2″ 1″ 1-1/2″ 1-1/4″ 2″ 3-1/2″ 2-1/2″ 3″ 4″ 5″ 6″ 8″ 10″ 12″ 14″ 16″ 18″ 20″ 24″
DN 20 15 25 40 32 50 90 65 80 100 125 150 200 250 300 350 400 450 500 600
O.D. Flange   117. 5 95.5 124. 0 155. 5 133. 5 165. 0 228. 5 190. 5 209. 5 254. 0 279. 5 317. 5 381. 0 444. 5 520. 5 584. 0 647. 5 711. 0 774. 5 914. 5
Number of Bolts 4 4 4 4 4 8 8 8 8 8 8 12 12 16 16 20 20 24 24 24
Bore   27.7 22.4 34.5 49.5 43.2 62 103. 4 74.7 90.7 116. 1 143. 8 170. 7 221. 5 276. 4 327. 2 359. 2 410. 5 461. 8 513. 1 616. 0
Thk. Of Flange Min   15.7 14.2 17.5 20.6 19.1 22.4 30.2 25.4 28.4 31.8 35.1 36.6 41.1 47.8 50.8 53.8 57.2 60.5 63.5 69.9
Dia of Hub   47.8 38.1 53.8 69.9 63.5 84.1 133.4 100.1 117.3 146.1 177.8 206.2 260.4 320.5 374.7 425.5 482.6 533.4 587.2 701.5
Diameter of Raised Face   42.9 35.1 50.8 73.2 63.5 91.9 139.7 104.6 127 157.2 185.7 215.9 269.7 323.9 381 412.8 469.9 533.4 584.2 692.2
Diam. of Bolt Circle   82.6 66.5 88.9 114.3 98.6 127 184.2 149.4 168.1 200.2 235 269.7 330.2 387.4 450.9 514..4 571.5 628.7 685.8 812.8
Diam. of Bolts (inch)   5/8″ 1/2″ 5/8″ 5/8″ 5/8″ 5/8″ 3/4″ 3/4″ 3/4″ 3/4″ 3/4″ 3/4″ 7/8″ 1″ 1 1/8″ 1 1/8″ 1 1/4″ 1 1/4″ 1 1/4″ 1 1/2″
Diam. of Bolt Holes   19.1 15.7 19.1 22.4 19.1 19.1 22.4 22.4 22.4 22.4 22.4 22.4 25.4 28.4 31.8 31.8 35.1 35.1 35.1 41.1
Approx. Weight LB/PCS 2.6 1.5 3.1 6.2 4.2 7.3 17.2 10.1 13.9 22                    
KG/PCS 1.2 0.7 1.4 2.8 1.9 3.3 7.8 4.6 6.3 10                    

Class 600
Pipe Normal Diam. Inch 1/2″ 3/4″ 1″ 1-1/4″ 1-1/2″ 2″ 2-1/2″ 3″ 3-1/2″ 4″ 5″ 6″ 8″ 10″ 12″ 14″ 16″ 18″ 20″ 24″
DN 15 20 25 32 40 50 65 80 90 100 125 150 200 250 300 350 400 450 500 600
O.D. Flange    95.5 117. 5 124. 0 133. 5 155. 5 165. 0 190. 5 209. 5 228. 5 273. 0 330. 0 355. 5 419. 0 508. 0 559. 0 603. 5 686. 0 743. 0 813. 0 940. 0
Number of Bolt   4 4 4 4 4 8 8 8 8 8 8 12 12 16 20 20 20 20 24 24
Dia of Bolt(inch)   1/2″ 5/8″ 5/8″ 5/8″ 3/4″ 5/8″ 3/4″ 3/4″ 7/8″ 7/8″ 1″ 1″ 1 1/8″ 1 1/4″ 1 1/4″ 1 3/8″ 1 1/2″ 1 5/8″ 1 5/8″ 1 7/8″
Dia of Bolt Hole   15.7 19.1 19.1 19.1 22.4 19.1 22.4 22.4 25.4 25.4 28.4 28.4 31.8 35.1 35.1 38.1 41.1 44.5 44.5 50.8
Thk. Of Flange Min    14.2 15.7 17.5 20.6 22.4 25.4 28.4 31.8 35.1 38.1 44.5 47.8 55.6 63.5 66.5 69.9 76.2 82.6 88.9 101.6
Dia of Hub   38.1 47.8 53.8 63.5 69.9 84.1 100.1 117.3 133.4 152.4 189 222.3 273.1 342.9 400.1 431.8 495.3 546.1 609.6 717.6
Bore    22.9 28.2 35.1 43.7 50 62.5 75.4 91.4 104.1 116.8 144.5 171.5 222.3 277.4 328.2 360.2 411.2 462.3 514.4 616
Diameter of Raised Face    35.1 42.9 50.8 63.5 73.2 91.9 104.6 127 139.7 157.2 185.7 215.9 269.7 323.9 381 412.8 469.9 533.4 584.2 692.2
Length Hub   22.4 25.4 26.9 28.4 31.8 36.6 41.1 46 49.3 53.8 60.5 66.5 76.2 85.9 91.9 93.7 106. 4 117. 3 127. 0 139. 7
Dia of Bolt Circle   66.5 82.6 88.9 98.6 114.3 127 149.4 168.1 184.2 215.9 266.7 292.1 349.3 431.8 489 527.1 603.3 654.1 723.9 838.2
Approx. Weight LB/PCS 2.2 3.5 4 5.7 7.7 8.6 13.2 16.3 20.9                      
KG/PCS 1 1.6 1.8 2.6 3.3 3.9 6 7.4 9.5                      

Class 1500
Pipe Normal Diam. Inch 3/4″ 1/2″ 1″ 1-1/2″ 1-1/4″ 2-1/2″ 2″ 3″ 4″ 5″ 6″ 8″ 10″ 12″ 14″ 16″ 18″ 20″ 24″
DN 20 15 25 40 32 65 50 80 100 125 150 200 250 300 350 400 450 500 600
O.D. Flange   130 120.7 149.4 177.8 158.8 244.3 215.9 266.7 311.2 374.7 393.7 482.6 584.2 673.1 749.3 825.5 914.4 984.3 1168.4
Number of Bolt   4 4 4 4 4 8 8 8 8 8 12 12 16 20 20 20 20 20 20
Dia of Bolts (inch)   3/4″ 3/4″ 7/8″ 1″ 7/8″ 1″ 7/8″ 7/8″ 1 1/8″ 1 1/4″ 1 1/8″ 1 3/8″ 1 3/8″ 1 3/8″ 1 1/2″ 1 5/8″ 1 7/8″ 2″ 2 1/2″
Thk. Of Flange Min   25.4 22.4 28.4 31.8 28.4 41.1 38.1 47.8 53.8 73.2 82.6 91.9 108 124 133.4 146.1 162.1 177.8 203.2
Length Hub   35.1 31.8 41.1 44.5 41.1 63.5 57.2                        
Dia of Hub   44.5 38.1 52.3 69.9 63.5 124 104.6 133.4 162.1 196.9 228.6 292.1 368.3 450.9 495.3 552.5 596.9 641.4 762
Dia of Bolt Circle   88.9 82.6 101.6 124 111.3 190.5 165.1 190.5 235 279.4 317.5 393.7 469.9 533.4 558.8 616 685.8 749.3 901.7
Bore   27.7 22.4 34.5 49.5 43.2 74.7 62                        
Dia of Bolt Hole   22.4 22.4 25.4 28.4 25.4 28.4 25.4 25.4 31.8 35.1 31.8 38.1 38.1 38.1 41.1 44.5 50.8 53.8 66.5

Gasket For SWRF Flanges


Gasket For SWRF Flanges  
Composite Spiral Wound Gaskets Camprofile Gaskets Spiral Wound Gaskets
Metallic – Ring Gasket - Octagonal Ring Gasket Oval Ring Gasket
Non-Metallic Compressed Non-Asbestos Fibre Gasket PTFE Gasket Compressed Non-Asbestos Fibre Gasket
Get RF Threaded Flange and Flange SWFR in 4 to 24 Bolt Hole for Pipeline Applications, Check Welding Methods

Welding Methods of ANSI B16.5 RF Flanges


Welding Neck RF flange Slip On RF flange Socket Weld RF flange Blind RF flange
Welding Neck RF flang Slip On RF flang Socket Weld RF flange Blind RF flange
  • Welded to a pipe or fitting with a single full penetration
  • Connection with the pipe is done with 2 fillet welds (both OD and ID)
  • Wall thickness of pipe: 3 mm
  • Connection with the pipe is done with 1 fillet weld (Outside)
  • pipe to socket max depth: 1/16" (1.6 mm)
  • Connecrtion to the pipe by a circular weld around the neck of the flange
  • larger sizes
  • highly stressed 

Socket Weld Raised Face Flanges Advantages


Socket Weld Raised Face Flanges