Weldolet Pipe Flange | ASME/ANSI B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092
A weldoflange is a type of pipe flange designed for welding directly onto the pipe or fitting. This flange is commonly used in applications where a secure, permanent connection is required between the pipe and the flange. The weldoflange is designed with a smooth, beveled edge to facilitate welding, ensuring a strong bond that can withstand high pressure and temperature conditions. It is available in a range of materials, such as carbon steel, stainless steel, and alloy steel, making it versatile for various industries like oil and gas, chemical processing, and power generation. The weldoflange provides a reliable and cost-effective solution for pipe connections, offering ease of installation and superior sealing performance.
The necessity of choosing Ample Alloys for nipoflanges lies in the company's focus on quality control, timely delivery, and a diverse range of materials suitable for various operational conditions. With a reputation for reliability and customer satisfaction, We ensures that each nipoflange is crafted to withstand high pressures and temperatures, providing an efficient solution for branching or lateral connections in complex piping systems. Our technical knowledge and customer-focused approach make a trusted supplier for industries, where performance and safety are paramount.
Weld-on flange, Welded pipe flange, Stainless steel, Alloy steel, Carbon steel weldoflange, Forged weldoflange, Flange for welding, Seamless weldoflange, Pipe flange for welding
ANSI B16.5 Weldolet 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
| Size | Size in mm | Height A | OD -B | Hole Dia C | Weight in KG |
|---|---|---|---|---|---|
| 1/4 | 8 | 14.3 | 25.4 | 15.9 | 0.04 |
| 3/8 | 10 | 19.05 | 31.75 | 19.05 | 0.07 |
| 1/2 | 15 | 19.05 | 34.93 | 23.81 | 0.08 |
| 3/4 | 20 | 22.23 | 44.45 | 30.16 | 0.11 |
| 1 | 25 | 26.99 | 53.98 | 36.51 | 0.23 |
| 1 1/4 | 32 | 31.75 | 65.09 | 44.45 | 0.36 |
| 1 1/2 | 40 | 33.34 | 73.03 | 50.8 | 0.45 |
| 2 | 50 | 38.1 | 88.9 | 65.09 | 0.79 |
| 2 1/2 | 65 | 41.28 | 103.19 | 76.2 | 1.13 |
| 3 | 80 | 44.45 | 122.24 | 93.66 | 1.81 |
| 3 1/2 | 90 | 47.63 | 142.88 | 112.71 | 2.5 |
| 4 | 100 | 50.8 | 152.4 | 120.65 | 2.86 |
| 5 | 130 | 57.15 | 179.3 | 141.29 | 4.65 |
| 6 | 150 | 60.33 | 215.9 | 169.86 | 6.44 |
| 8 | 200 | 69.85 | 263.53 | 220.66 | 10.66 |
| 10 | 250 | 77.79 | 322.26 | 274.64 | 17.69 |
| 12 | 300 | 85.73 | 377.83 | 325.44 | 26.76 |
| 14 | 350 | 88.9 | 409.58 | 357.19 | 29.94 |
| 16 | 400 | 93.6 | 463.55 | 407.99 | 34.02 |
| 18 | 450 | 96.84 | 520.7 | 458.79 | 44 |
| 20 | 500 | 101.6 | 571.5 | 508 | 53.52 |
| 24 | 600 | 144.5 | 717.5 | 609.6 | 101 |
| 26 | 650 | 155.6 | 778 | 660.4 | 120 |
| 30 | 750 | 174.6 | 893.6 | 762 | 190 |
| 36 | 900 | 206.4 | 1070 | 914.4 | 310 |
| 40 | 1000 | 225.4 | 1187.6 | 1016 | 435 |
| 42 | 1050 | 235 | 1244.6 | 1066.8 | 540 |
| 48 | 1200 | 241.3 | 1404 | 1219.2 | 750 |
| Size | Size in mm | Height – A | OD – B | Hole Dia – C | Weight in KG |
|---|---|---|---|---|---|
| 1/4 | 8 | N/A | 25.4 | 15.88 | 0.05 |
| 3/8 | 10 | N/A | 31.75 | 19.05 | 0.07 |
| 1/2 | 15 | 19.05 | 34.93 | 23.81 | 0.09 |
| 3/4 | 20 | 22.23 | 44.45 | 30.16 | 0.14 |
| 1 | 25 | 26.99 | 53.98 | 36.51 | 0.21 |
| 1 1/4 | 32 | 31.75 | 65.09 | 44.45 | 0.41 |
| 1 1/2 | 40 | 33.34 | 73.03 | 50.8 | 0.5 |
| 2 | 50 | 38.1 | 88.9 | 65.09 | 0.79 |
| 2 1/2 | 65 | 41.28 | 103.19 | 76.2 | 1.18 |
| 3 | 80 | 44.45 | 122.24 | 93.66 | 1.86 |
| 3 1/2 | 90 | 47.63 | 136.53 | 112.71 | 2.54 |
| 4 | 100 | 50.8 | 152.4 | 120.65 | 2.9 |
| 6 | 150 | 77.79 | 225.43 | 169.86 | 10.43 |
| 8 | 200 | 98.43 | 292.1 | 220.66 | 16.78 |
| 10 | 250 | 93.66 | 323.85 | 265.11 | 20.87 |
| 12 | 300 | 103.1 | 379.41 | 317.5 | 27.67 |
| 14 | 350 | 100.01 | 431.8 | 350.84 | 31.75 |
| 16 | 400 | 106.36 | 466.73 | 403.23 | 46.27 |
| 18 | 450 | 111.13 | 523.88 | 455.61 | 58.97 |
| 20 | 500 | 119.06 | 582.61 | 509.59 | 71.67 |
| 24 | 600 | 152.4 | 722.2 | 609.6 | 142 |
| 26 | 650 | 165.1 | 782.6 | 660.4 | 168 |
| 30 | 750 | 181 | 896.8 | 762 | 218 |
| 36 | 900 | 212.7 | 1074.4 | 914.4 | 404 |
| 40 | 1000 | 235 | 1194 | 1016 | 582 |
| 42 | 1050 | 244.5 | 1250.8 | 1066.8 | 590 |
| 48 | 1200 | 273 | 1425.6 | 1219.2 | 910 |
| Size | Size in mm | Height – A | OD – B | Hole Dia – C | Weight in KG |
|---|---|---|---|---|---|
| 1/2 | 15 | 28.58 | 34.93 | 14.29 | 0.11 |
| 3/4 | 20 | 31.75 | 44.45 | 19.05 | 0.32 |
| 1 | 25 | 38.1 | 50.8 | 25.4 | 0.38 |
| 1 1/4 | 32 | 44.45 | 61.91 | 33.34 | 0.57 |
| 1 1/2 | 40 | 50.8 | 69.85 | 38.1 | 0.79 |
| 2 | 50 | 55.56 | 80.96 | 42.86 | 0.97 |
| 2 1/2 | 65 | 61.91 | 96.84 | 53.98 | 1.53 |
| 3 | 80 | 73.03 | 120.65 | 73.03 | 2.87 |
| 4 | 100 | 84.14 | 152.4 | 98.43 | 4.76 |
| 5 | 130 | 93.66 | 187.33 | 122.24 | 6.46 |
| 6 | 150 | 104.78 | 220.66 | 146.05 | 12.7 |
| 8 | 200 | 111.12 | 284.16 | 173.04 | 20.41 |
| 10 | 250 | 125.41 | 312.74 | 215.9 | 38.56 |
| Size | Size in mm | Height – A | OD – B | Hole Dia – C | Weight in KG |
|---|---|---|---|---|---|
| 1/2 | 15 | 28.58 | 34.93 | 14.29 | 0.11 |
| 3/4 | 20 | 31.75 | 44.45 | 19.05 | 0.32 |
| 1 | 25 | 38.1 | 50.8 | 25.4 | 0.38 |
| 1 1/4 | 32 | 44.45 | 61.91 | 33.34 | 0.57 |
| 1 1/2 | 40 | 50.8 | 69.85 | 38.1 | 0.79 |
| 2 | 50 | 55.56 | 80.96 | 42.86 | 0.97 |
| 2 1/2 | 65 | 61.91 | 96.84 | 53.98 | 1.53 |
| 3 | 80 | 73.03 | 120.65 | 73.03 | 2.87 |
| 4 | 100 | 84.14 | 152.4 | 98.43 | 4.76 |
| 5 | 130 | 93.66 | 187.33 | 122.24 | 6.46 |
| 6 | 150 | 104.78 | 220.66 | 146.05 | 12.7 |
| 8 | 200 | 111.12 | 284.16 | 173.04 | 20.41 |
| 10 | 250 | 125.41 | 312.74 | 215.9 | 38.56 |
Weld-on flange Standards
These standards ensure that weld-on flanges meet the necessary performance, safety, and compatibility requirements for reliable and durable pipe connections in diverse industrial applications.
- 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 Seamless Weldoflange!
Ample Alloys provides high-quality weldoflanges made from top-grade materials, ensuring durability and reliability for various industrial applications. With custom solutions, competitive pricing, and on-time delivery, we are your trusted partner for all weldoflange needs.
High-Quality Manufacturing
Ample Alloys provides premium weldoflange products, crafted using top-grade materials. Our flanges are designed to meet stringent industry standards for durability, strength, and performance.
Customization Options
We offer customized weldoflange solutions tailored to your specifications, including size, material, and pressure rating, ensuring the perfect fit for your unique piping system needs.
Wide Range of Sizes and Ratings
Ample Alloys stocks weldoflanges in various sizes and pressure ratings, making them suitable for a wide array of industrial applications, from low-pressure to high-pressure systems.
Expertise and Experience
With years of industry experience, Ample Alloys delivers expert guidance and technical support, helping you choose the right weldoflange for your specific requirements.
A weldoflange is designed for welding directly onto a pipe, providing a more secure connection for high-pressure applications. A slip-on flange, on the other hand, slips over the pipe and is welded around the neck, making it suitable for lower-pressure systems.
Weldoflanges are used in various industries, including oil and gas, chemical processing, power generation, and water treatment, where secure and high-strength connections are needed.
Yes, weldoflanges can be customized in terms of material, size, pressure rating, and design to meet specific application requirements.
