Threaded Flange

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Size Range: 1/2” - 24” / DN15 - DN600 Pressure Rating: Class 150, 300, 600, 900, 1500, 2500lb Standard: ASME B16.5 / EN1092-1

SKU: ZZ105 Category:

Threaded flange can be used in systems where welding is not possible. They have threads which make them be screwed onto the pipe rather than be welded. The ASME B16.5 flange dimensions vary according to the needs. The threaded flange is also called a ‘screwed flange’ that uses a screw thread to connect the flange onto pipe. A male thread is cut onto a pipe end while a female thread is cut into the bore of the flange.

Do Threaded Flange Have a Schedule?

ASME b16.5 threaded flange could be used to connect two pipes with thread to make a joint. NPT flange are common in plumbing applications. The range of BSP flange is also available in different pressure classes such as ANSI 150 threaded flange dimensions. Their applications include all types of fluid flow systems and hydraulics. There’s a fair deviation of threaded flange price due to the supply and demand factors, including the transportation costs and locations.

Size Range 1/2″ – 24″ / DN15 – DN600
Pressure Rating Class 150, 300, 600, 900, 1500, 2500lb
Standard ASME B16.5, EN1092-1
Carbon Steel ASTM A105 / A105N
Low Temp Carbon Steel ASTM A350 LF2/LF3
Pipeline Steel ASTM A694 F42 / 46 / 56 / 60 / 65
Alloy Steel ASTM A182 F11 / 12 / 5 / 9 / 91 / 92
Stainless Steel ASTM A182 F304/304L/304H, 316/316L, 310S, 317,347,904L
Duplex Stainless Steel ASTM A182 F51, F53, F44

Dimensions of  Threaded Flange

ASME B16.5 threaded flange with rating class designations 150, 300,400, 600, 900 in sizes NPS 1/2 through NPS 24 and flanges with rating class designation 1500 and 2500 in sizes NPS 1/2 through NPS 2-1/2,with requirements given in both metric and U.S. Customary units with diameter of bolts and flange bolt holes expressed in inch units.

150 LB

Nominal Bore Of Threaded Diameter Of (D) Thickness Of(E) Diameter(F) Diameter(B) Height1(H) Nbr Holes Diameter(C)
1/2″ 90 9.6 35.05 30 14 4 15.87 60.3
3/4″ 100 11.2 42.92 38 14 4 15.87 69.9
1″ 110 12.7 50.80 49 16 4 15.87 79.4
1 1/4″ 115 14.3 63.50 59 19 4 15.87 88.9
1 1/2″ 125 15.9 73.15 65 21 4 15.87 98.4
2″ 150 17.5 91.94 78 24 4 19.05 120.7
2 1/2″ 180 20.7 104.65 90 27 4 19.05 139.7
3″ 190 22.3 127.00 108 29 4 19.05 152.4
3 1/2″ 215 22.3 139.70 122 30 8 19.05 177.8
4″ 230 22.3 157.22 135 32 8 19.05 190.5
5″ 255 22.3 185.67 164 35 8 22.22 215.9
6″ 280 23.9 215.90 192 38 8 22.22 241.3
8″ 345 27.0 269.75 246 43 8 22.22 298.5
10″ 405 28.6 323.85 305 48 12 25.40 362.0
12″ 485 30.2 381.00 365 54 12 25.40 431.8
14″ 535 33.4 412.75 400 56 12 28.57 476.3
16″ 595 35.0 469.90 457 62 16 28.57 539.8
18″ 635 38.1 533.40 505 67 16 31.75 577.9
20″ 700 41.3 584.20 559 71 20 31.75 635.0
24″ 815 46.1 692.15 663 81 20 34.92 749.3

300 LB

Nominal Bore Of Threaded Diameter Of (D) Thickness Of(E) Diameter(F) Diameter(B) Diameter(A) Height1(H) Nbr Holes Diameter(C)
1/2″ 95 12.7 35.05 38 23.6 21 4 15.87 66.7
3/4″ 115 14.3 42.92 48 29.0 24 4 19.05 82.6
1″ 125 15.9 50.80 54 35.8 25 4 19.05 88.9
1 1/4″ 135 17.5 63.50 64 44.4 25 4 19.05 98.4
1 1/2″ 155 19.1 73.15 70 50.3 29 8 22.22 14.3
2″ 165 20.7 91.94 84 63.5 32 8 19.05 127.0
2 1/2″ 190 23.9 104.65 100 76.2 37 8 22.22 149.2
3″ 210 27.0 127.00 117 92.2 41 8 22.22 168.3
3 1/2″ 230 28.6 139.70 133 104.9 43 8 22.22 184.2
4″ 255 30.2 157.22 146 117.6 46 8 22.22 200.0
5″ 280 33.4 185.67 178 144.4 49 8 22.22 235.0
6″ 320 35.0 215.90 206 171.4 51 12 25.4 269.9
8″ 380 39.7 269.75 260 222.2 60 12 28.57 330.2
10″ 445 46.1 323.85 321 276.2 65 16 28.57 387.4
12″ 520 49.3 381.00 375 328.6 71 16 31.75 450.8
14″ 585 52.4 412.75 425 360.4 75 20 31.75 514.4
16″ 650 55.6 533.40 533 462.0 87 24 34.92 571.5
18″ 710 58.8 533.4 533 462.0 87 24 34.92 628.6
20″ 775 62.0 584.20 587 512.8 94 24 34.92 685.8
24″ 915 68.3 692.15 702 614.4 105 24 41.27 812.8

600 LB

Nominal Bore Of Threaded Diameter Of (D) Thickness Of(E) Diameter(F) Diameter(B) Diameter(A) Height1(H) Nbr Holes Diameter(C)
1/2″ 95 14.3 35.05 38 23.6 22 4 15.87 66.7
3/4″ 115 15.9 42.92 48 29.0 25 4 19.05 82.6
1″ 125 17.5 50.80 54 35.8 27 4 19.05 88.9
1 1/4″ 135 20.7 63.50 64 44.4 29 4 22.22 98.4
1 1/2″ 155 22.3 73.15 70 50.6 32 4 19.05 114.3
2″ 165 25.4 91.94 84 63.5 37 8 22.22 127.0
2 1/2″ 190 28.6 104.65 100 76.2 41 8 22.22 149.2
3″ 210 31.8 127.00 117 92.2 46 8 22.22 168.3
3 1/2″ 230 35.0 139.70 133 104.9 49 8 25.4 184.2
4″ 275 38.1 157.22 152 117.6 54 8 25.4 215.9
5″ 330 44.5 185.67 189 144.4 60 8 28.57 266.7
6″ 355 47.7 215.90 222 171.4 67 12 31.75 292.1
8″ 420 55.6 269.75 273 222.2 76 12 31.75 349.2
10″ 510 63.5 323.8 343 276.2 86 16 34.92 431
12″ 560 66.7 381 400 328.6 92 20 34.92 489
14″ 605 69.9 412 432 360.4 94 20 38.10 527
16″ 685 76.2 469 495 411.2 106 20 41.27 603.2
18″ 745 82.6 533 546 462.0 117 20 44.45 654.0
20″ 815 88.9 584 610 512.8 127 24 44.65 723.9
24″ 940 101.6 692 718 614.4 140 24 47.62 838.2

900 LB

Nominal Bore Of Threaded ID OD BC RF H T Holes
1/2″ 0.93 4.75 3.25 1.38 1.50 1.50 4
3/4″ 1.14 5.13 3.50 1.69 1.75 1.63 4
1″ 1.41 5.88 4.00 2.00 2.06 1.88 4
1 1/4″ 1.75 6.25 4.38 2.50 2.50 1.88 4
1 1/2″ 1.99 7.00 4.88 2.88 2.75 2.00 4
2″ 2.50 8.50 6.50 3.63 4.13 2.50 4
2 1/2″ 3.00 9.63 7.50 4.13 4.88 2.5 4
3″ 3.63 9.50 7.50 5.00 5.00 2.38 4
3 1/2″ 4.63 11.50 9.25 6.19 6.25 3.00 4
4″ 5.69 13.75 11.0 7.31 7.50 3.38 8
5″ 6.75 15.00 12.50 8.50 9.25 3.63 8
6″ 8.75 18.50 15.50 10.63 11.75 4.25 8
8″ 8.75 18.50 15.50 10.63 11.75 4.25 8
10″ 10.88 21.50 18.50 12.75 14.50 4.50 16
12″ 12.94 24.00 21.00 15.00 16.50 4.88 20
14″ 14.19 25.25 22.00 16.25 17.75 5.38 20
16″ 16.19 27.75 24.25 18.50 20.00 5.50 20
18″ 18.19 31.00 27.00 21.00 22.25 6.25 20
20″ 20.19 33.75 29.50 23.00 24.50 6.50 20
24″ 24.19 41.00 35.50 27.25 29.50 8.25 20

1500 LB

Nominal Bore Of Threaded ID OD BC R H T B Bolts Holes Number
1/2″ 0.93 4.75 3.25 1.38 1.50 1.50 0.88 4
3/4″ 1.14 5.13 3.50 1.69 1.75 1.63 0.88 4
1″ 1.41 5.88 4.00 2.00 2.06 1.88 1.00 4
1 1/4″ 1.75 6.25 4.38 2.50 2.50 1.88 1.00 4
1 1/2″ 1.99 7.00 4.88 2.88 2.75 2.00 1.13 4
2″ 2.50 8.50 6.50 3.63 4.13 2.50 1.00 8
2 1/2″ 3.00 9.63 7.50 4.13 4.88 2.75 1.13 8

2500 LB

Nominal Bore Of Threaded ID OD BC R H T B Bolts Holes Number
1/2″ 0.93 5.25 3.50 1.38 1.69 1.81 0.88 4
3/4″ 1.14 5.50 3.75 1.69 2.00 1.94 0.88 4
1″ 1.41 6.25 4.25 2.00 2.25 2.13 1.00 4
1 1/4″ 1.75 7.25 5.13 2.50 2.88 2.31 1.13 4
1 1/2″ 1.99 8.00 5.75 2.88 3.13 2.63 1.25 4
2″ 2.50 9.25 6.75 3.63 3.75 3.00 1.13 8
2 1/2″ 3.00 10.50 7.75 4.1 4.50 3.38 1.25 8

Specification ASME B16.5 Threaded Flange

Material Specification Of: ASME B16.5 Threaded Flange
Low Temperature Above -29 Degree C (−20°F)
Common Types Of Flanges: Slip On (SORF), Weld Neck (WNRF), Blind (BLRF), Lap Joint (Loose), Threaded (NPT), Socket-Weld (SWRF)

 
Special Types Of Flanges : Nipoflange, Elboflange, Latroflange, Swivel Flanges, Expanding Flanges, Reducing Flanges, Weldoflange
Marking Standard Name of Manufacturer

Schedule

Type of Flange Facing

Nominal Pipe Size

Pressure Class

ASME B16 Designation

 
Bolt Type high strength bolts

medium strength bolts

low strength bolts
European Standard Flanges JIS B2220 Flanges (5k to 30k) and KS1503 flanges
Russian-Standard Flanges GOST 12820 / 12821-80, DIN, UNI, EN 1092-1
South African Standard Flanges SANSflanges And SABS flanges
Surface Finish smooth, concentric serrated, stock
Standard Cover : pressure ratings & temperature ratings, materials, marking, dimensions, weight, tolerances, testing
Contact Faces RTJ (Ring Type Joint), FF (Flat Face), RF (Raised Face), T/G (Tongue And Groove ), M/F (Male And Female)
Size Chart Normal Pipe Size 1/2 to NPS 24″
Materials Stainless Steel (Grade 304/L, 316/L), Carbon Steel (ASTM A105 And ASTM A350), Alloy Steel (ASTM A182), Mild Steel, Duplex Steel, Pressure Vessel Steel, Titanium, Super Duplex Steel, Nickel Alloy, Monel, Inconel, Hastelloy, Copper Nickel, Cast Iron, Wrought Iron.
Thickness Normal Pipe Size ≤ 18
Bore Diameter Normal Pipe ≤ 10
Flanges Standards EN 1092-1, JIS, ASME B16.5, ASME B16.47 type A, UNI, DIN

 
Pressure Rating Class 150 To Class 2500
High Temperature Above 200°C (400°F) For Class 150 Or Above 400°C (750°F)
Gaskets Types Full Face Gasket

Flat Ring Gasket

Metallic Ring Gakset
Advantages Of Pipe Flange Used to Connect Pipe System

Easy Repair Pipe System

Assembled Without Welding

 

How to Inspection of Threaded Flange

Before the threaded flange leaves the factory, our quality inspectors will inspect the product according to the production standards, measure the flange outer diameter, thickness, bolt hole diameter, etc., to ensure that the product meets the production standards.

Advantage

High strength and toughness
Corrosion resistance
Easy installation and cost reduction
Durable
Wide range of applications
In general,threaded flanges are a type of non-welded flanges suitable for high-pressure pipeline connections.  They have the advantages of being easy to install and maintain, and can be used on pipelines where welding is not allowed.However, it is necessary to choose the appropriate flange for use based on the specific application environment of the pipeline.

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