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ASTM A815 UNS S31803 WN Flange, 3 Inch, SCH 40, RF, 900 LB, ANSI B16.5

ASTM A815 UNS S31803 WN Flange, 3 Inch, SCH 40, RF, 900 LB, ANSI B16.5

Material: ASTM A815 UNS S31803 

Flange Size: DN80 (3 Inch)

Flange rating: 900 LB (PN20)

Wall Thickness: SCH 40

 

Flange face: RF

When using weld neck flanges, the following points should be noted:

Before installation, check whether there are obvious defects or damages on the surface of the WN flange and pipeline to avoid problems such as loose connections or leakage of liquid or gas.

When purchasing welding neck flanges, different materials, models, and other parameters should be selected according to the specific usage situation.

During installation, it is necessary to follow the corresponding specifications and requirements to avoid improper installation that may affect the effectiveness of use.

During use, regular inspections and maintenance should be carried out to promptly address issues and ensure the normal operation of the pipeline system

 

 

ASME B16.5 Class 900

Weld Neck Flange Dimensions

Size in Inch Size in mm Outer Diameter Flange Thickness Hub OD Weld Neck OD Welding Neck Length Bore RF Diameter RF Height PCD Weld Face
    A B C D E F G H I J
1/2 15 120 22.3 38 21.3 60 Welding Neck bore is derived from the pipe schedule 34.9 7 82.6 1.6
3/4 20 130 25.4 44 26.7 70 42.9 7 88.9 1.6
1 25 150 28.6 52 33.4 73 50.8 7 101.6 1.6
1 1/4 32 160 28.6 64 42.2 73 63.5 7 111.1 1.6
1 1/2 40 180 31.8 70 48.3 83 73 7 123.8 1.6
2 50 215 38.1 105 60.3 102 92.1 7 165.1 1.6
2 1/2 65 245 41.3 124 73 105 104.8 7 190.5 1.6
3 80 240 38.1 127 88.9 102 127 7 190.5 1.6
4 100 290 44.5 159 114.3 114 157.2 7 235 1.6
5 125 350 50.8 190 141.3 127 185.7 7 279.4 1.6
6 150 380 55.6 235 168.3 140 215.9 7 317.5 1.6
8 200 470 63.5 298 219.1 162 269.9 7 393.7 1.6
10 250 545 69.9 368 273 184 323.8 7 469.9 1.6
12 300 610 79.4 419 323.8 200 381 7 533.4 1.6
14 350 640 85.8 451 355.6 213 412.8 7 558.8 1.6
16 400 705 88.9 508 406.4 216 469.9 7 616 1.6
18 450 785 101.6 565 457 229 533.4 7 685.8 1.6
20 500 855 108 622 508 248 584.2 7 749.3 1.6
24 600 1040 139.7 749 610 292 692.2 7 901.7 1.6

 

Material:  

Carbon Steel

ASTM A105, ASTM A350 LF1, ASTM A350 LF2,

S235JR, P245GH, P250GH, P280GH,

ASTM A694 F42, ASTM A694 F46, ASTM A694 F52, ASTM A694 F56, ASTM A694 F60, ASTM A694 F65, ASTM A694 F70, etc

Stainless Steel

ASTM A182 F304, ASTM A182 F304L, ASTM A182 F304H,

ASTM A182 F316, ASTM A182 F316L, ASTM A182 F317, ASTM A182 F317L,

ASTM A182 F321, ASTM A182 F310, ASTM A182 F347, etc.

 Alloy Steel

ASTM A182 F1, ASTM A182 F5, ASTM A182 F9, ASTM A182 F11, ASTM A182 F22, ASTM A182 F91, etc.

Duplex and super duplex steel

ASTM A815 UNS S31803, ASTM A815 UNS S32205,

ASTM A815 UNS S32750, ASTM A815 UNS S32760  

 

 

Specification:

Size Range: DN15-DN2000, 1/2 Inch-80 Inch 

Face Finish: RF, FF, RTJ, TF, GF

Standard & Pressure Ratings:  

1. ANSI/ASME/ASTM B16.5/B16,47: 150 LB, 300 LB, 600 LB, 900 LB, 1500 LB, 2500 LB

2. DIN/UNI: PN6, PN10, PN16, PN25, PN40, PN64

 

 

Service:

Surface Treatment: Black painting, anti-rust varnish, anti-rust oil, hot-galvanized

Non-destructive Testing: penetration test, ultrasonic test, radiographic test

Certificate: CE, ISO, PED, TS, BV, CQC Certificate

Packing: Plywood Case or Pallet

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