ソケット溶接継手 ソケット溶接継手は、継手の溝にパイプを斜めに挿入し、アングル溶接で接続をシールします。ソケット溶接継手の適切なサイズは？ソケット溶接継手のさまざまな素材のうち、どれが良いのでしょうか？このような情報や知識を得るために、読み進めてください。.
ソケット溶接継手
基本性能とサイズ表
- 適用範囲呼び径≤NPS 2の配管システム
- 適用範囲：化学工業、エネルギー、船舶などの分野。.
- 材質：炭素鋼：Q235、A105; ステンレス鋼: 304、316L、321; 合金鋼: 15CrMo、ニッケル基合金など。.
- 規格ASME B16.11に準拠。.
- 利点：高い密閉性、強固な構造
ASME B16.11およびGB/T14383-2021規格のソケット溶接継手のコア寸法パラメータ総合表
| パラメータ/仕様 | DN15（1/2インチ） | DN20 (3/4″) | DN25 (1″) | DN50 (2″) | 備考 |
| ソケット深さ（Jmin） | 21.9mm | 24.1mm | 26.4mm | 31.8mm | 最小値、実測値≧標準値 |
| ソケット外径（Bmin） | 22.2mm (3000LB) | 27.7mm (3000LB) | 34.5mm (3000LB) | 51.7mm (3000LB) | 外径は定格圧力に比例して大きくなる（例：6000LB DN50 Bmin≥53.1mm） |
| ボア径（Dmin） | 14.2mm | 19.3mm | 25.4mm | 42.1mm | パイプの肉厚に合わせなければならない（例：Sch80 DN25 Dmin≥23.8mm） |
| 肉厚（Cmin） | 3.7mm (Sch40) | 4.2mm (Sch40) | 5.2mm (Sch80) | 6.0mm (Sch80) | SS材の厚みを10%～15%で薄くできる |
| フェイシング・タイプ | RF/FF/MF/TG/OSG/RJ | RF/FF/MF/TG/OSG/RJ | RF/FF/MF/TG/OSG/RJ | RF/FF/MF/TG/OSG/RJ | RFが最も一般的、高圧用RJ |
| 同心度許容度 | ≤0.5mm | ≤0.6mm | ≤0.7mm | ≤0.8mm | CS継手は公差を維持するためにノーマライジングが必要 |
| 適用規格 | ASME B16.11/GB14383 | ASME B16.11/GB14383 | ASME B16.11/GB14383 | ASME B16.11/GB14383 | GB/T14383-2021に内ネジ/外ネジエルボタイプを追加 |
Types of Socket Weld Fittings
Bends
There are a variety of elbows such as 90° elbow and 45° elbow, which can change the direction of the pipeline, and the design of the elbow can reduce the space occupied by the pipeline and make the pipeline system more rationalized.
Tee
Divided into equal diameter tee and reducer tee, to realize the pipeline diversion and merging. It is usually applied to the scene of multi-fluid control.
socket weld cross
Divided into equal and opposite diameter crosses, used for diverting and combining the flow of pipelines.
socket weld coupling
Socket Weld Coupling is a kind of forged pipe fittings connecting pipelines by socket welding, which is suitable for small diameter (usually ≤NPS 2/DN50) high-pressure system with high sealing, structural strength and flexibility of adaptation.
American socket weld boss
Connects branch pipes vertically to the main pipe, providing a high-strength, low-risk leakage branch connection for high-pressure fluid distribution systems.
cap
socket weld cap used to seal pipe ends or branch connections for NPS 1/8″~4″ small diameter high pressure piping systems in accordance with ASME B16.11.
45° Y-branch
For connecting branches at a 45° angle to the main line to divert or merge fluids, suitable for high pressure, small diameter piping systems.
How To Correctly Describe The Socket Weld Fittings Dimensions
Accurately expressing the size of Socket Weld pipe fittings is a central step in ensuring that your piping system and fittings are compatible.
Socket weld fittings with unsuitable specification size will lead to no way to install the pipe, and it can’t run smoothly in serious cases, which will lead to the occurrence of safety accidents. Therefore, the dimensions of socket weld fittings need to be clearly grasped at the time of procurement and design.
- Outside Diameter (Outside Diameter, OD): The outside diameter of socket weld fittings is an important parameter that describes the size of the fittings. socket weld fittings are usually manufactured in accordance with ASME B16.11 or ASTM A234. socket weld fittings are required by the standards. The Socket Weld Fitting Standard requires that outside diameters be expressed in millimeters (mm) or inches (inch). For example, a 2-inch OD carbon steel pipe would require a SW elbow with the same OD specification. A pipe with a nominal outside diameter of 2 1/2 inches requires a Class 3000 45-Deg Elbow Socket Weld Fitting Pipe with the same outside diameter specification.
- Pressure Class: Socket weld fittings pressure class is generally divided into Class 3000, Class 6000, Class 9000, and the choice of pressure class and female thread to socket weld fittings and other connectors to keep matching.
- Wall thickness (Schedule): Use “Schedule (e.g. SCH10, SCH40, SCH80) for labeling. High-pressure steam piping systems require fittings with SCH80 or higher wall thicknesses. For normal industrial water piping, SCH40 is sufficient.
Socket Weld Fittings Carbon Steel Pipe
- Carbon Steel Socket Weld Fittings: Carbon Steel Socket Weld Fittings are the most commonly used material for industrial applications. Carbon Steel Socket Weld Fittings are available in a wide range of sizes including, but not limited to, Socket Weld 45° Elbow, Socket Weld 90° Elbow, Carbon Steel Socket Weld Tee, Carbon Steel Socket Weld Flange, Carbon Steel Socket Weld Reducer, and other types with a variety of functions and shapes. Socket Weld fittings have excellent tensile strength and can withstand high temperature and pressure environments. Good weldability makes them ideal for pipe systems with socket weld connections. They are economical, low cost and suitable for large areas.
- Stainless Steel Socket Weld Fittings: Beautiful appearance, corrosion resistance.
- Alloy Steel Socket Weld Fittings: Wear-resistant and oxidation-resistant.
- Other special materials: Covering Duplex Steel, titanium alloy and nickel alloy and other special materials.
