Socket weld flanges have a socket in which a pipe is inserted; the pipe is secured by one fillet weld located on the exterior of the flange hub. A significant disadvantage with this type of flange is that it is not considered a high-integrity joint because the weld is difficult to prove; thus socket weld flanges are only suitable for low to medium classes (≤ ASME 600). Due to their lower integrity and unsuitability for use at higher pressures, socket weld flanges almost always have flat or raised faces.
|
|
|
|
Socket Weld Flange: 1. socket weld flange; 2. filled weld; 3. pipe; X=expansion ga |
|
Socket weld flanges are designed for small nominal pipe sizes (≤ 4 inches, ≤ 10cm) and are common for ½ to 2-inch pipe sizes (1.3 to 5cm pipe sizes). The mechanical strength of a socket weld flange is similar to that of a slip-on flange, but the slip-on flange may use two welds.
The ASME B31.3 standard states that an approximate gap of 1⁄16th of an inch (1.5mm) between the socket and pipe end is required; this gap allows for thermal expansion due to welding and reduces the likelihood that the weld will crack. In practice, this means that the pipe should be fully inserted into the flange, then retracted by the desired amount (1/16th of an inch, 1.5mm); this gap has been highlighted red on the above image.
The advantage of socket weld flanges is their simple design, they are well suited for small pipe size applications e.g. 2 inches (5cm) and below, and for non-critical applications e.g. non-hazardous systems; they are not suitable for highly erosive or corrosive systems.
Non-Destructive Testing (NDT) Techniques
Socket weld flanges have only one fillet weld and this can be subjected to radiography to prove the weld, although in practice it is impractical. Magnetic particle inspection (MPI) and dye penetrant inspection (DPI) can be used to prove the weld.
ASME Standards
Socket weld flanges are not specified in ASME class 2500 rating as per the ASME B16.5 standard. The ASME B31.3 standard states that an approximate gap of 1⁄16th of an inch (1.5mm) between the socket and pipe end is required.
Standard Specification For Socket Weld Flange
|
Dimensions |
ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings |
|
Size |
1/2" (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. |
|
DIN |
DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673 |
|
BS |
BS4504 , BS4504, BS1560, BS10 |
|
Flange Face Type |
Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
Material & Grades of Socket Weld Flange
|
Stainless Steel Socket weld flanges |
ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L |
|
Duplex & Super Duplex Steel Socket weld flanges |
ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61 |
|
Carbon Steel Socket weld flanges |
ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706 |
|
Low Temperature Carbon Steel Socket weld flanges |
ASTM A350, LF2, LF3 |
|
Alloy Steel Socket weld flanges |
ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91 |
|
Copper Alloy Steel Socket weld flanges |
ASTM SB 61 , SB62 , SB151 , SB152 UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200 |
|
Nickel Alloy Socket weld flanges |
ASTM SB564, SB160, SB472, SB162 Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020) |
ASME B16.5 Raised Faced Socket weld Flanges Available Types
|
Socket weld Raised Face Flange |
Raised Faced Socket weld Flanges |
|
ANSI B16.5 Socket weld Flanges |
Socket weld Flange Dimensions |
|
ASME B16.5 SWRF Flanges |
ANSI B16.5 Class 150 Socket weld Flanges |
|
Stainless Steel Socket weld Flanges Suppliers |
SS Socket weld Flange |
|
Socket weld Plate Flanges Dealer |
ASME B16.47 Series A and B SWRF Flanges Exporter |
|
ANSI B16.5 class 150 SWRF Flange Stockholder |
ANSI 150 Socket weld Flange Distributors |
|
Carbon Steel Socket weld Flange |
High Quality SWRF Flanges Manufacturer |
|
ASTM A182 Stainless Steel SWRF Flange |
Duplex Steel Socket weld Flange |
|
Super Duplex Steel Socket weld Forged Flange |
Copper Nickel Socket weld Pipe Flanges |
|
High Nickel Alloy SWRF Flanges |
Hastelloy Flat Faced Socket weld Flanges Stockist |
|
Titanium ASME B16.47 Series A and B SWRF Flanges |
Inconel Socket weld Flanges |
ANSI B16.5 Socket weld Flanges Application
ASME B16.5 Socket weld Flanges are known to deliver exceptional performance and are generally developed for meeting the demands. We offer a broad range of Flat Faced Socket weld Flanges through a worldwide network of stock-keeping branches. These Socket weld Flange is use in various industries like :
Stainless Steel Socket weld Flanges uses in Oil and Gas Pipeline
Socket weld Raised Face Flanges uses in Chemical Industry
Alloy Steel SWRF Flanges uses in Plumbing
Flat Faced Socket weld Flanges uses in Heating
Socket weld Pipe Flanges uses in Water Supply Systems
ANSI B16.5 Socket weld Forged Flanges uses in Power Plant
Socket weld Plate Flanges uses in Paper & Pulp Industry
Socket weld Flange uses in General Purpose Applications
Steel Socket weld Flanges uses in Fabrication Industry
Socket weld Flange uses in Food Processing Industry
Socket weld Flanges uses in Structural Pipe
