Industrial plate flange, Stainless steel plate flange Suppliers
A plate flange is a type of flange that is typically used in piping systems to connect sections of pipe, valves, pumps, or other equipment. It is made from a solid metal plate, which is shaped into a circular disc with holes that allow it to be bolted securely to another component. Plate flanges come in various sizes, pressure ratings, and materials, ensuring that they can handle a wide range of applications, from low-pressure to high-pressure systems. These flanges are particularly useful in industries such as oil and gas, petrochemical, water treatment, and power generation.
The plate flange offers the flexibility of customization, as it can be designed to fit specific requirements for size, pressure class, and material type. Its robust construction makes it suitable for heavy-duty applications, ensuring the integrity and safety of piping systems even under high-temperature and high-pressure conditions. Plate flanges are typically used in larger pipe sizes and can be found in various configurations, including weld-neck, slip-on, and blind designs.
Ample Alloys is a renowned manufacturer and supplier specializing in a wide range of high-quality industrial Plate Flange. With a strong commitment to providing exceptional customer service, We works diligently to meet the unique needs of industries. The company stands out by offering customizable solutions tailored to client specifications, ensuring that each product meets stringent industry standards and requirements.
High-pressure plate flange, Carbon steel, Alloy Steel plate flange, Custom plate flange, Flanged plate connectors, API 6A plate flange, Weld-on plate flange, Slip-on plate flange, Blind plate flange, Forged plate flange, Plate flange for pipelines
Forged plate flange
Size Range
15mm ( 1/2" NPS ) up to 600mm ( 24" NPS ), For 2500# in sizes from NPS 1/2 to NPS 12
Flange Face Type
FF—Flat Face, RF—Raised Face, FM—Female Face, M—Male Face, T—Tongue Face, G—Groove Face, RJ—Ring Joint.
Stainless Steel
ASTM A182 F 304, 304L, 304H, 316, 316L, 316H, 317, 317L, 321, 321H, 310, 310S, 347, 904L, etc.
Standards / Dimension
ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN
Carbon Steel
ASTM A105/A105N (SA105N), LTCS A350 LF2, A694
Alloy Steel
ASTM A182 / SA182 - F1 / F5 / F9 / F11 / F12 / F22 / F91
Pressure Class
150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64.
Duplex & Super Duplex
ASTM A182 / ASME SA182 - S31803, S32205, 2205, S32750, S32760, S32950, 2507.
MTC
EN 10204 3.2 and EN 10204 3.1, Test Certificates certifying NACE MR0175, NACE MR0103
| NPS | 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 | 0.4 |
| 3/4″ | 98.4 | 12.7 | 42.9 | 38.1 | 27.7 | 69.8 | 4 | 15.9 | 0.7 |
| 1″ | 107.9 | 14.3 | 50.8 | 49.2 | 34.5 | 79.4 | 4 | 15.9 | 0.8 |
| 1 1/4″ | 117.5 | 15.9 | 63.5 | 58.8 | 43.2 | 88.9 | 4 | 15.9 | 1.1 |
| 1 1/2″ | 127 | 17.5 | 73 | 65.1 | 49.5 | 98.4 | 4 | 15.9 | 1.4 |
| 2″ | 152.4 | 19 | 92.1 | 77.8 | 62 | 120.6 | 4 | 19 | 2.2 |
| 2 1/2″ | 177.8 | 22.2 | 104.8 | 90.5 | 74.7 | 139.7 | 4 | 19 | 3.6 |
| 3″ | 190.5 | 23.8 | 127 | 107.9 | 90.7 | 152.4 | 4 | 19 | 4.1 |
| 3 1/2″ | 215.9 | 23.8 | 139.7 | 122.2 | 103.4 | 177.8 | 8 | 19 | 5.2 |
| 4″ | 228.6 | 23.8 | 157.2 | 134.9 | 116.1 | 190.5 | 8 | 19 | 5.6 |
| 5″ | 254 | 23.8 | 185.7 | 163.6 | 143.8 | 215.9 | 8 | 22.2 | 6.3 |
| 6″ | 279.4 | 25.4 | 215.9 | 192.1 | 170.7 | 241.3 | 8 | 22.2 | 7.5 |
| 8″ | 342.9 | 28.6 | 269.9 | 246.1 | 221.5 | 298.4 | 8 | 22.2 | 12.6 |
| 10″ | 406.4 | 30.2 | 323.8 | 304.8 | 276.3 | 361.9 | 12 | 25.4 | 18.5 |
| 12″ | 482.6 | 31.7 | 381 | 365.1 | 327.1 | 431.8 | 12 | 25.5 | 28 |
| 14″ | 533.4 | 34.9 | 412.7 | 400 | 359.1 | 476.2 | 12 | 28.6 | 36 |
| 16″ | 596.9 | 36.5 | 469.9 | 457.2 | 410.5 | 539.7 | 16 | 28.6 | 46 |
| 18″ | 635 | 39.7 | 533.4 | 504.8 | 461.8 | 577.8 | 16 | 31.7 | 50 |
| 20″ | 698.5 | 42.9 | 584.2 | 558.8 | 513.1 | 635 | 20 | 31.7 | 64 |
| 22″ | 749.3 | 46 | 641.2 | 609.6 | 564.4 | 692.1 | 20 | 34.9 | 72 |
| 24″ | 812.8 | 47.6 | 692.1 | 663.6 | 615.9 | 749.3 | 20 | 34.9 | 89 |
| NPS | 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 | 0.7 |
| 3/4″ | 117.5 | 15.9 | 42.9 | 47.6 | 27.7 | 82.5 | 4 | 19 | 1.1 |
| 1″ | 123.8 | 17.5 | 50.8 | 54 | 34.5 | 88.9 | 4 | 19 | 1.4 |
| 1 1/4″ | 133.3 | 19 | 63.5 | 63.5 | 43.2 | 98.4 | 4 | 19 | 1.8 |
| 1 1/2″ | 155.6 | 20.6 | 73 | 69.8 | 49.5 | 114.3 | 4 | 22.2 | 2.6 |
| 2″ | 165.1 | 22.2 | 92.1 | 84.1 | 62 | 127 | 8 | 19 | 3.4 |
| 2 1/2″ | 190.5 | 25.4 | 104.8 | 100 | 74.7 | 149.2 | 8 | 22.2 | 4.4 |
| 3″ | 209.5 | 28.6 | 127 | 117.5 | 90.7 | 168.3 | 8 | 22.2 | 6.1 |
| 3 1/2″ | 228.6 | 30.2 | 139.7 | 133.3 | 103.4 | 184.1 | 8 | 22.2 | 7.5 |
| 4″ | 254 | 31.7 | 157.2 | 146 | 116.1 | 200 | 8 | 22.2 | 10.1 |
| 5″ | 279.4 | 34.9 | 185.7 | 177.8 | 143.8 | 234.9 | 8 | 22.2 | 12.5 |
| 6″ | 317.5 | 36.5 | 215.9 | 206.4 | 170.7 | 269.9 | 12 | 22.2 | 14.1 |
| 8″ | 381 | 41.3 | 269.9 | 260.3 | 221.5 | 330.2 | 12 | 25.4 | 24.8 |
| 10″ | 444.5 | 47.6 | 323.8 | 320.7 | 276.3 | 387.3 | 16 | 28.6 | 37.1 |
| 12″ | 520.7 | 50.8 | 381 | 374.6 | 327.1 | 450.8 | 16 | 31.7 | 50 |
| 14″ | 584.2 | 54 | 412.7 | 425.4 | 359.1 | 514.3 | 20 | 31.7 | 70 |
| 16″ | 647.7 | 57.1 | 469.9 | 482.6 | 410.5 | 571.5 | 20 | 34.9 | 90 |
| 18″ | 711.2 | 60.3 | 533.4 | 533.4 | 461.8 | 628.6 | 24 | 34.9 | 112 |
| 20″ | 774.7 | 63.5 | 584.2 | 584.2 | 513.1 | 685.8 | 24 | 34.9 | 133 |
| 22″ | 838.2 | 66.7 | 641.2 | 641.2 | 564.4 | 742.9 | 24 | 41.3 | 197 |
| 24″ | 914.4 | 69.8 | 692.1 | 701.7 | 615.9 | 812.8 | 24 | 41.3 | 208 |
| NPS | 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 | 0.8 |
| 3/4″ | 117.5 | 15.9 | 42.9 | 47.6 | 27.7 | 82.5 | 4 | 19 | 1.4 |
| 1″ | 123.8 | 17.5 | 50.8 | 54 | 34.5 | 88.9 | 4 | 19 | 1.6 |
| 1 1/4″ | 133.3 | 20.6 | 63.5 | 63.5 | 43.2 | 98.4 | 4 | 19 | 2.1 |
| 1 1/2″ | 155.6 | 22.2 | 73 | 69.8 | 49.5 | 114.3 | 4 | 22.2 | 3.1 |
| 2″ | 165.1 | 25.4 | 92.1 | 84.1 | 62 | 127 | 8 | 19 | 3.7 |
| 2 1/2″ | 190.5 | 28.6 | 104.8 | 100 | 74.7 | 149.2 | 8 | 22.2 | 5.4 |
| 3″ | 209.5 | 31.7 | 127 | 117.5 | 90.7 | 168.3 | 8 | 22.2 | 7.3 |
| 3 1/2″ | 228.6 | 34.9 | 139.7 | 133.3 | 103.4 | 184.1 | 8 | 25.4 | 8.9 |
| 4″ | 273 | 38.1 | 157.2 | 152.4 | 116.1 | 215.9 | 8 | 25.4 | 11.8 |
| 5″ | 330.2 | 44.4 | 185.7 | 188.9 | 143.8 | 266.7 | 8 | 28.6 | 24.5 |
| 6″ | 355.6 | 47.6 | 215.9 | 222.2 | 170.7 | 292.1 | 12 | 28.6 | 29.5 |
| 8″ | 419.1 | 55.6 | 269.9 | 273 | 221.5 | 349.2 | 12 | 31.7 | 43 |
| 10″ | 508 | 63.5 | 323.8 | 342.8 | 276.3 | 431.8 | 16 | 34.9 | 70 |
| 12″ | 558.8 | 66.7 | 381 | 400 | 327.1 | 488.9 | 20 | 34.9 | 86 |
| 14″ | 603.2 | 69.8 | 412.7 | 431.8 | 359.1 | 527 | 20 | 38.1 | 100 |
| 16″ | 685.8 | 76.2 | 469.9 | 495.3 | 410.5 | 603.2 | 20 | 41.3 | 142 |
| 18″ | 742.9 | 82.5 | 533.4 | 546.1 | 461.8 | 654 | 20 | 44.4 | 175 |
| 20″ | 812.8 | 88.9 | 584.2 | 609.6 | 513.1 | 723.9 | 24 | 44.4 | 232 |
| 22″ | 869.9 | 95.2 | 641.2 | 666.7 | 564.4 | 777.9 | 24 | 47.6 | 292 |
| 24″ | 939.8 | 101.6 | 692.1 | 717.5 | 615.9 | 838.2 | 24 | 50.8 | 330 |
| Nominal Pipe Size | Diameter of Pipe | Flange I.D | No. of holes | Flange Dia | Thk of Flange | Dia of Bolt Circle | Dia of Bolt Holes | Approx.Weight | |
|---|---|---|---|---|---|---|---|---|---|
| DN | ISO | DIN | D5 | BN | D | b | K | d2 | KG/PCS |
| 10 | – | 14 | 14.5 | 4 | 90 | 16 | 60 | 14 | 0.7 |
| 17.2 | – | 17.7 | 4 | 90 | 16 | 60 | 14 | 0.69 | |
| 15 | – | 20 | 21 | 4 | 95 | 16 | 65 | 14 | 0.77 |
| 21.3 | – | 22 | 4 | 95 | 16 | 65 | 14 | 0.77 | |
| 20 | – | 25 | 26 | 4 | 105 | 18 | 75 | 14 | 1.06 |
| 26.9 | – | 27.6 | 4 | 105 | 18 | 75 | 14 | 1.05 | |
| 25 | – | 30 | 31 | 4 | 115 | 18 | 85 | 14 | 1.27 |
| 33.7 | – | 34.4 | 4 | 115 | 18 | 85 | 14 | 1.25 | |
| 32 | – | 38 | 39 | 4 | 140 | 18 | 100 | 18 | 1.86 |
| 42.4 | – | 43.1 | 4 | 140 | 18 | 100 | 18 | 1.83 | |
| 40 | – | 44.5 | 45.5 | 4 | 150 | 18 | 110 | 18 | 2.12 |
| 48.3 | – | 49 | 4 | 150 | 18 | 110 | 18 | 2.09 | |
| 50 | – | 57 | 58.1 | 4 | 165 | 20 | 125 | 18 | 2.78 |
| 60.3 | – | 61.1 | 4 | 165 | 20 | 125 | 18 | 2.74 | |
| 65 | 76.1 | – | 77.1 | 8 | 185 | 22 | 145 | 18 | 3.48 |
| 80 | 88.9 | – | 90.3 | 8 | 200 | 24 | 160 | 18 | 4.33 |
| 100 | – | 108 | 109.6 | 8 | 235 | 24 | 190 | 22 | 5.82 |
| 114.3 | – | 115.9 | 8 | 235 | 24 | 190 | 22 | 5.61 | |
| 125 | – | 133 | 134.8 | 8 | 270 | 26 | 220 | 26 | 7.91 |
| 139.7 | – | 141.6 | 8 | 270 | 26 | 220 | 26 | 7.6 | |
| 150 | – | 159 | 161.1 | 8 | 300 | 28 | 250 | 26 | 10.12 |
| 168.3 | – | 170.5 | 8 | 300 | 28 | 250 | 26 | 9.58 | |
| 175 | 193.7 | – | 196.1 | 12 | 350 | 32 | 295 | 30 | 14.45 |
| 200 | 219.1 | – | 221.8 | 12 | 375 | 34 | 320 | 30 | 16.9 |
| 250 | – | 267 | 270.2 | 12 | 450 | 38 | 385 | 33 | 27.28 |
| 273 | – | 276.2 | 12 | 450 | 38 | 385 | 33 | 26.51 | |
| 300 | 323.9 | – | 327.6 | 16 | 515 | 42 | 450 | 33 | 36.38 |
| 350 | 355.6 | – | 359.7 | 16 | 580 | 46 | 510 | 36 | 52.83 |
| – | 368 | 372.2 | 16 | 580 | 46 | 510 | 36 | 50.24 | |
| 400 | 406.4 | – | 411 | 16 | 660 | 50 | 585 | 39 | 74.71 |
| – | 419 | 423.7 | 16 | 660 | 50 | 585 | 39 | 71.44 | |
| 500 | 508 | – | 513.6 | 20 | 755 | 52 | 670 | 42 | 86.87 |
| 600 | 610 | – | 616.5 | 20 | 890 | 54 | 795 | 48 | 121.84 |
| 700 | 711 | – | 716 | 24 | 995 | 58 | 900 | 48 | 150.93 |
| 800 | 813 | – | 818 | 24 | 1140 | 64 | 1030 | 56 | 219.08 |
| 900 | 914 | – | 920 | 28 | 1250 | 70 | 1140 | 56 | 271.16 |
| 1000 | 1016 | – | 1022 | 28 | 1360 | 78 | 1250 | 56 | 344.95 |
Blind plate flanges Standards
Blind plate flanges are commonly used to seal the end of pipes, valves, and other equipment in various piping systems. These flanges do not have a central hole and are designed to block or close off a pipeline or equipment. The following are some of the main standards for blind plate flanges:
- ASME/ANSI Standards (American):
- ASME B16.5 – Pipe Flanges and Flanged Fittings (NPS 1/2" to 24").
- ASME B16.47 – Large Diameter Steel Flanges (Series A & B, NPS 26" to 60").
- ASME B16.36 – Orifice Flanges.
- ASME B16.48 – Line Blanks (Spectacle, Spade, and Spacer Flanges).
- ANSI B16.1 – Cast Iron Flanges and Flanged Fittings.
- ANSI B16.42 – Ductile Iron Pipe Flanges and Flanged Fittings.
- ISO Standards (International)
- ISO 7005-1 – Steel Flanges for General Applications.
- ISO 7005-2 – Cast Iron Flanges.
- ISO 7005-3 – Copper Alloy Flanges.
- EN Standards (European)
- EN 1092-1 – Steel Flanges.
- EN 1092-2 – Cast Iron Flanges.
- EN 1092-3 – Copper Alloy Flanges.
- EN 1092-4 – Aluminium Alloy Flanges.
- DIN Standards (German)
- DIN 2527 – Blind Flanges.
- DIN 2576 – Slip-On Flanges (PN 10).
- DIN 2633 – Weld Neck Flanges (PN 16).
- DIN 2634 – Weld Neck Flanges (PN 25).
- DIN 2635 – Weld Neck Flanges (PN 40).
- JIS Standards (Japanese)
- JIS B2220 – Steel Pipe Flanges.
- GOST Standards (Russian)
- GOST 12820 – Flat Flanges for Steel Pipe Joints.
- GOST 12821 – Steel Welded Flanges for High-Pressure Applications.
- GOST 33259 – Flange Connections for Industrial Equipment and Pipelines.
- BS Standards (British)
- BS 4504 – Circular Flanges for Pipes, Valves, and Fittings.
- BS 10 – Specification for Flanges and Bolting.
- API Standards (Oil & Gas)
- API 6A – Wellhead and Christmas Tree Equipment Flanges.
- API 605 – Large-Diameter Carbon Steel Flanges (merged into ASME B16.47 Series B).
- AWWA Standards (Waterworks)
- AWWA C207 – Steel Ring Flanges for Waterworks Service.
- MSS Standards (Manufacturer's Standardization Society)
- MSS SP-44 – Steel Pipe Flanges (merged into ASME B16.47 Series A).
- MSS SP-51 – Flanges for Glass-Lined Equipment.
- Material-Specific Standards (ASTM)
- ASTM A105 – Carbon Steel Forged Flanges.
- ASTM A182 – Alloy and Stainless Steel Forged Flanges.
- ASTM A350 – Carbon and Low-Alloy Steel Flanges for Low-Temperature Service.
- ASTM A694 – High-Strength Carbon and Alloy Steel Flanges for High-Pressure Applications.
- Other Regional and Specialized Standards
- KS B1511 – Korean Standard Flanges.
- NF E29-206 – French Standard Flanges.
- SANS 1123 – South African Standard for Steel Flanges.
Why Ample Alloys For Industrial Flange plate !
Choose Ample Alloys for your industrial plate flange needs and experience unmatched reliability, quality, and service.
High-Quality Materials
Ample Alloys sources premium materials to manufacture plate flanges, ensuring durability and reliability in high-pressure and high-temperature applications.
Customized Solutions
We offer customized plate flanges designed to meet specific customer requirements, ensuring the right fit and function for diverse industries.
Strict Quality Control
Our plate flanges undergo rigorous quality checks and testing to meet global industry standards, providing consistent performance and safety.
Comprehensive Product Range
Our product portfolio includes a wide range of plate flanges in various sizes, materials, and pressure classes, providing flexibility for diverse industrial needs.
The common types of plate flanges include Weld-Neck, Slip-On, Blind, and Lap-Joint flanges. These flanges come in various sizes, pressure ratings, and materials to meet different application requirements.
Unlike other flanges, plate flanges are typically made from a solid metal plate and are often used in high-pressure systems. They offer the flexibility of customization for large or complex pipe systems and can be used to seal or block a section of a pipeline.
Yes, plate flanges can be customized in terms of size, material, pressure rating, and bolt holes to meet specific application requirements. Custom plate flanges are commonly used in industries such as oil and gas, petrochemical, and power generation.
