Where to get high quality plate flanges?

What is a plate flange?

Plate flange is also named plain flange, flat flange and slip on flange etc. A plate flange is a flat, circular disk that is welded onto the end of a pipe and allows it to be bolted to another pipe. Typically used in fuel and water pipelines, the two plate flanges will be bolted together with a gasket in between them. The plate flange will have bolt holes all around the perimeter and will be used to create junctions, tees and joints.

When building a pipeline, the length of the pipes used are not always known. By manufacturing the pipe separate from the plate flange, the welders can cut the pipe to length and weld a plate flange in place to join the pipes at any needed length. The plates can also be welded to the pipe on a slight bias, allowing two pipes to be joined that may not be precisely lined up.

plate flange designs are uniform in any given size regardless of materials used to create them. This allows a 6-inch (15 cm) black pipe flange to mate perfectly with a 6-inch stainless steel flange. The plate flanges will have a serrated finish on the inside mating surface, which allows the plate to seat into the gasket material. This ensures a perfect seal between two joining pipes.

Product name : plate flange

Size  ½” (15 NB) to 48″ (1200NB)
Class   150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.  

Material

Grade

 

Stainless Steel  

ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L  
Duplex Steel    ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61  
Alloy Steel 

ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91  

Carbon Steel  

ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F70

In Form SORF, WNRF, BLRF, SWRF, LAP Joint, Threaded, Reducing, Spectacle, etc
Specialize As per drawing 
Value Added Services » CNC Machining 
» Customized Flanges
Standard ANSI : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48


20180121110412 76669 - Where to get high quality plate flanges?

B16.5 Plate Flange Dimensions & Approximate Masses

ANSI, ASME, ASA, B16.5 150lb/sq.in. Plate Ring Flange RF
ø D b g m J k Holes l Kg.
1/2″ 88,9 11,1 34,9 30,2 22,3 60,3 4 15,9 0,400
3/4″ 98,4 12,7 42,9 38,1 27,7 69,8 4 15,9 0,700
1″ 107,9 14,3 50,8 49,2 34,5 79,4 4 15,9 0,800
1 1/4″ 117,5 15,9 63,5 58,8 43,2 88,9 4 15,9 1,100
1 1/2″ 127,0 17,5 73,0 65,1 49,5 98,4 4 15,9 1,400
2″ 152,4 19,0 92,1 77,8 62,0 120,6 4 19,0 2,200
2 1/2″ 177,8 22,2 104,8 90,5 74,7 139,7 4 19,0 3,600
3″ 190,5 23,8 127,0 107,9 90,7 152,4 4 19,0 4,100
3 1/2″ 215,9 23,8 139,7 122,2 103,4 177,8 8 19,0 5,200
4″ 228,6 23,8 157,2 134,9 116,1 190,5 8 19,0 5,600
5″ 254,0 23,8 185,7 163,6 143,8 215,9 8 22,2 6,300
6″ 279,4 25,4 215,9 192,1 170,7 241,3 8 22,2 7,500
8″ 342,9 28,6 269,9 246,1 221,5 298,4 8 22,2 12,600
10″ 406,4 30,2 323,8 304,8 276,3 361,9 12 25,4 18,500
12″ 482,6 31,7 381,0 365,1 327,1 431,8 12 25,5 28,000
14″ 533,4 34,9 412,7 400,0 359,1 476,2 12 28,6 36,000
16″ 596,9 36,5 469,9 457,2 410,5 539,7 16 28,6 46,000
18″ 635,0 39,7 533,4 504,8 461,8 577,8 16 31,7 50,000
20″ 698,5 42,9 584,2 558,8 513,1 635,0 20 31,7 64,000
22″ 749,3 46,0 641,2 609,6 564,4 692,1 20 34,9 72,000
24″ 812,8 47,6 692,1 663,6 615,9 749,3 20 34,9 89,000
                   

NOTE:
1. Class 150 flanges except Lap Joint will be furnished with 0.06 (1.6mm) raised face, which is included in ‘Thickness’ (C) and ‘Length through Hub’ (Y1), (Y3).
2. For Slip-on, Threaded, Socket Welding and Lap Joint Flanges, the hubs can be shaped either vertical from base to top or tapered within the limits of 7 degrees.
3. Blind Flanges may be made with the same hub as that used for Slip-on Flanges or without hub.
4. The gasket surface and backside (bearing surface for bolting) are made parallel within 1 degree. To accomplish parallelism, spot facing is carried out according to MSS SP-9, without reducing thickness (C).
5. Depth of Socket (D) is covered by ANSI B 16.5 only in sizes through 3 inch, over 3 inch is at the manufacturer’s option.

ANSI, ASME, ASA, B16.5 300lb/sq.in. Plate Flange RF
ø D b g m J k Holes l Kg.
1/2″ 95,6 14,3 34,9 38,1 22,3 66,7 4 15,9 0,700
3/4″ 117,5 15,9 42,9 47,6 27,7 82,5 4 19,0 1,100
1″ 123,8 17,5 50,8 54,0 34,5 88,9 4 19,0 1,400
1 1/4″ 133,3 19,0 63,5 63,5 43,2 98,4 4 19,0 1,800
1 1/2″ 155,6 20,6 73,0 69,8 49,5 114,3 4 22,2 2,600
2″ 165,1 22,2 92,1 84,1 62,0 127,0 8 19,0 3,400
2 1/2″ 190,5 25,4 104,8 100,0 74,7 149,2 8 22,2 4,400
3″ 209,5 28,6 127,0 117,5 90,7 168,3 8 22,2 6,100
3 1/2″ 228,6 30,2 139,7 133,3 103,4 184,1 8 22,2 7,500
4″ 254,0 31,7 157,2 146,0 116,1 200,0 8 22,2 10,100
5″ 279,4 34,9 185,7 177,8 143,8 234,9 8 22,2 12,500
6″ 317,5 36,5 215,9 206,4 170,7 269,9 12 22,2 14,100
8″ 381,0 41,3 269,9 260,3 221,5 330,2 12 25,4 24,800
10″ 444,5 47,6 323,8 320,7 276,3 387,3 16 28,6 37,100
12″ 520,7 50,8 381,0 374,6 327,1 450,8 16 31,7 50,000
14″ 584,2 54,0 412,7 425,4 359,1 514,3 20 31,7 70,000
16″ 647,7 57,1 469,9 482,6 410,5 571,5 20 34,9 90,000
18″ 711,2 60,3 533,4 533,4 461,8 628,6 24 34,9 112,000
20″ 774,7 63,5 584,2 584,2 513,1 685,8 24 34,9 133,000
22″ 838,2 66,7 641,2 641,2 564,4 742,9 24 41,3 197,000
24″ 914,4 69,8 692,1 701,7 615,9 812,8 24 41,3 208,000

NOTE:
1. Class 300 flanges except Lap Joint will be furnished with 0.06 (1.6mm) raised face, which is included in ‘Thickness’ (C) and ‘Length through Hub’ (Y1), (Y3).
2. For Slip-on, Threaded, Socket Welding and Lap Joint Flanges, the hubs can be shaped either vertical from base to top or tapered within the limits of 7 degrees.
3. Blind Flanges may be made with the same hub as that used for Slip-on Flanges or without hub.
4. The gasket surface and backside (bearing surface for bolting) are made parallel within 1 degree. To accomplish parallelism, spot facing is carried out according to MSS SP-9, without reducing thickness (C).
5. Depth of Socket (D) is covered by ANSI B 16.5 only in sizes through 3 inch, over 3 inch is at the manufacturer’s option.

ANSI, ASME, ASA, B16.5 600lb/sq.in. Plate Flange RF
ø D b g m J k Holes l Kg.
1/2″ 95,2 14,3 34,9 38,1 22,3 66,7 4 15,9 0,800
3/4″ 117,5 15,9 42,9 47,6 27,7 82,5 4 19,0 1,400
1″ 123,8 17,5 50,8 54,0 34,5 88,9 4 19,0 1,600
1 1/4″ 133,3 20,6 63,5 63,5 43,2 98,4 4 19,0 2,100
1 1/2″ 155,6 22,2 73,0 69,8 49,5 114,3 4 22,2 3,100
2″ 165,1 25,4 92,1 84,1 62,0 127,0 8 19,0 3,700
2 1/2″ 190,5 28,6 104,8 100,0 74,7 149,2 8 22,2 5,400
3″ 209,5 31,7 127,0 117,5 90,7 168,3 8 22,2 7,300
3 1/2″ 228,6 34,9 139,7 133,3 103,4 184,1 8 25,4 8,900
4″ 273,0 38,1 157,2 152,4 116,1 215,9 8 25,4 11,800
5″ 330,2 44,4 185,7 188,9 143,8 266,7 8 28,6 24,500
6″ 355,6 47,6 215,9 222,2 170,7 292,1 12 28,6 29,500
8″ 419,1 55,6 269,9 273,0 221,5 349,2 12 31,7 43,000
10″ 508,0 63,5 323,8 342,8 276,3 431,8 16 34,9 70,000
12″ 558,8 66,7 381,0 400,0 327,1 488,9 20 34,9 86,000
14″ 603,2 69,8 412,7 431,8 359,1 527,0 20 38,1 100,000
16″ 685,8 76,2 469,9 495,3 410,5 603,2 20 41,3 142,000
18″ 742,9 82,5 533,4 546,1 461,8 654,0 20 44,4 175,000
20″ 812,8 88,9 584,2 609,6 513,1 723,9 24 44,4 232,000
22″ 869,9 95,2 641,2 666,7 564,4 777,9 24 47,6 292,000
24″ 939,8 101,6 692,1 717,5 615,9 838,2 24 50,8 330,000

NOTE:
1. Class 600 flanges except Lap Joint will be furnished with 0.25 (6.35mm) raised face, which is not included in ‘Thickness’ (C) and ‘Length through Hub’ (Y1), (Y3).
2. For Slip-on, Threaded, Socket Welding and Lap Joint Flanges, the hubs can be shaped either vertical from base to top or tapered within the limits of 7 degrees.
3. Blind Flanges may be made with the same hub as that used for Slip-on Flanges or without hub.
4. The gasket surface and backside (bearing surface for bolting) are made parallel within 1 degree. To accomplish parallelism, spot facing is carried out according to MSS SP-9, without reducing thickness (C).
5. Dimensions of sizes 1/2 through 3 1/2 are the same as for Class 400 Flanges.
6. Depth of Socket (D) is covered by ANSI B 16.5 only in sizes through 3 inch, over 3 inch is at the manufacturer’s option

Plate Flanges are used to seal the end of pipelines, valves or other connection.
The various types of plate flanges are as follows:

  • Blind Plate Flanges

20180121110452 95894 - Where to get high quality plate flanges?

We carry a full line of stainless steel blind plate flanges, which are manufactured without a bore and are applied to block the end of a pipe system or valve.

  1. Types: Raised Face Blind
  2. Sizes: 1/2″ – 36″ +
  3. Bores: S/5s – XXH
  4. Pressures: 150 – 300 – 600
  • Slip On Plate Flange
  • Lap Joint Plate Flange

SS Plate Flange CS Plate Flange Alloy Steel Plate Flange F5 Plate Flange
F11 Plate Flange F22 Plate Flange F12 Plate Flange F91 Plate Flange
SS 304 Plate Flange SS 304L Plate Flange SS 316 Plate Flange SS 316 L Plate Flange
SS 317 Plate Flange SS 317L Plate Flange SS 321 Plate Flange SS 347H Plate Flange
SS 904L Plate Flange Duplex Plate Flange Super Duplex Plate Flange S31803 Plate Flange
S32205 Plate Flange Monel 400 Plate Flange Monel K500 Plate Flange Inconel Plate Flange
Duplex Plate Flange Super Duplex Plate Flange S32750 Plate Flange S32760 Plate Flange
F51 Plate Flange F53 Plate Flange A694 F42 Plate Flange A694 F46 Plate Flange
A694 F52 Plate Flange A694 F56 Plate Flange A694 F60 Plate Flange A694 F65 Plate Flange
A694 F70 Plate Flange A350 LF2 Plate Flange A350 LF3 Plate Flange A707 L1 Plate Flange
A707 L2 Plate Flange A707 L3 Plate Flange A105 Plate Flange F904L Plate Flange
Inconel 625 Plate Flange Incoloy 800 Plate Flange Incoloy 800H Plate Flange Incoloy 800HT Plate Flange
Hastelloy Plate Flange Hastelloy B2 Plate Flange Hastelloy B3 Plate Flange Hastelloy C22Plate Flange
Hastelloy C276 Plate Flange KOC approved Plate Flange KNPC approved Plate Flange AAramco approved Plate Flange

The Joint Between Plate Flange and Pipe: 
The plate flange slip over the pipe and the inner hole of plate flange is a little bigger than the pipe outer diameter. plate flanges are secured to the pipe with a fillet weld at the bottom and the top of flanges with the pipes. The welding method is fillet weld, so the plate flange is not suitable for a high pressure application.
The sealing face of a Plate Flange:
Though the plate flange means the flange is like a flat plate, it could be Raised Face (RF) sealing face , commonly the plate flange could be RF or FF face, the Raised Face Plain Flange is much popular in regular industry systems.
ANSI /ASME B16.5 Plain Flange:
In ANSI/ASME B16.5 flange standard , there is no plate slip on flange , only hub slip on flange in it , but in different projects the ANSI B16.5 plate flange is used a lot for decrease the cost of the projects. The ANSI /ASME  B16.5 plain flange should have the same dimensions and PCDs with the Slip on flange,  the only difference is without a hub on the flange.

Size

  • Plate flange:1/4″-160″
  • DN8-DN4000

Pressure

  • America Series:Class 150 ,Class 300, Class 600, Class 900A ,Class 1500,Class 2500.
  • Europe Series:PN2.5,PN6,PN10,PN16,PN25,PN40,PN63,PN100,PN160,PN250,PN320,PN400.
  • Flange Facing Types
  • America Series:Flat face(FF),Raised face(RF),Tongue(T),Groove(G),Female(F),Male(M),Ring type joints face(RJ/RTJ)
  • Europe Series:Type A(Flat Face),Type B(Raised Face),Type C(Tongue),Type D(Groove),Type E(Spigot),Type F(Recess),Type G(O-Ring Spigot),Type H(O-Ring Groove)

Material

  • Carbon steel: ASTM A105,ASTM A105N,GB 20,C22.8.
  • Alloy steel: ASTM/ASME A182 F1-F12-F11-F22- F5-F9- F91
  • Stainless steel: ASTM/ASME A182 F304-304L-304H-304LN-304N
  • ASTM/ASME A182 F316-316L-316H-316LN-316N-316Ti
  • ASTM/ASME A182 F321-321H, F347-347H
  • Low temperature steel: ASTM/ASME A350 LF2.
  • High performance steel: ASTM/ASME A694 F42 , F52, F56, F60, F65, F70

Standards

  • ASME ANSI B16.5,
  • AWWA C207
  • MSS SP 44
  • CSA Z245.12
  • EN1092-1,EN1759-1.
  • DIN2573 ,DIN2576,DIN2501,DIN2502.
  • BS1560,BS 4504,BS 10.
  • AFNOR NF E29-200-1
  • ISO7005-1
  • AS2129
  • JIS B2220
  • UNI 2276. UNI 2277.UNI 2278 .UNI 6089 .UNI 6090

Industrial Processes

Die forging,Machining.

Source: China Plate Flanges Manufacturer – Yaang Pipe Industry Co., Limited (www.metallicsteel.com)

(Yaang Pipe Industry is a leading manufacturer and supplier of nickel alloy and stainless steel products, including Super Duplex Stainless Steel Flanges, Stainless Steel Flanges, Stainless Steel Pipe Fittings, Stainless Steel Pipe. Yaang products are widely used in Shipbuilding, Nuclear power, Marine engineering, Petroleum, Chemical, Mining, Sewage treatment, Natural gas and Pressure vessels and other industries.)

If you want to have more information about the article or you want to share your opinion with us, contact us at sales@metallicsteel.com

Please notice that you might be interested in the other technical articles we’ve published:

  • WHERE TO BUY HIGH QUALITY STEEL PIPES

  • WHERE TO BUY HIGH QUALITY FLANGES

  • WHERE TO BUY HIGH QUALITY PIPE FITTINGS

  • ADVANTAGES OF DUPLEX STAINLESS STEEL PIPE AND SELECTION

  • WHERE TO BUY HIGH QUALITY BELLOW EXPANSION JOINTS

  • Difference Between Pipe Elbow And Pipe Bend

  • Where to get high quality alloy steel pipes

  • Distinguish Inferior Steel Pipes

  • WHERE TO GET HIGH QUALITY HEAT EXCHANGER TUBES

  • The Heat Treatment Process of Steel Pipes

  • WHERE TO GET HIGH QUALITY STUB ENDS

  • WHERE TO GET HIGH QUALITY CARBON STEEL PIPES

  • Where to get high quality pipe cap

  • Where to get high quality pipe bend

  • Where to get high quality pipe coupling

  • Where to get high quality pipe nipples

  • Where to get high quality pipe olets

  • Where to get high quality pipe reducer

  • Where to get high quality pipe tees

  • Where to get high quality blind flanges

  • Where to get high quality orifice flanges

  • Where to get high quality lap joint flanges

References:

  • https://www.yaang.com
  • https://www.steeljrv.com

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