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Stub Ends
Stub ends are essential components in piping systems, designed to provide a flat, flanged surface for connecting pipes to other fittings or equipment. These fittings are commonly used in conjunction with backing flanges to create a secure and leak-proof connection. Stub ends are widely utilized in industries such as oil and gas, water treatment, and chemical processing, where reliable and efficient pipe connections are crucial.
Constructed from high-quality materials, stub ends are engineered to withstand high pressures and temperatures, ensuring long-term durability and performance. Their design allows for easy installation and alignment with flanges, providing a robust and stable connection. Stub ends adhere to industry standards such as ASTM, ASME, and ANSI, guaranteeing their reliability and consistency. Their strong construction and precise design make them ideal for creating dependable connections in various piping applications.
Material Grades :
| Material Type | Grades |
|---|---|
| Carbon Steel | ASTM A 105/A694/ A350 LF3/A350 LF2 - F42, F46, F52, F56, F60, F65 |
| Stainless Steel | ASTM A 182 - F 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316Ti, 316H, 316L, 321, 321H, 347, 347H, 904L |
| Duplex & Super Duplex | ASTM / ASME A/SA 182 - F44, F45, F51, F53, F55, F60, F61 |
| Nickel | 200, 201 |
| Monel | 400 |
| Inconel | 600, 601, 625, 800, 825 |
| Hastelloy | C-276 |
Stubend Specifications:
| Specification | Details |
|---|---|
| Material | Carbon Steel (ASTM A234 WPB), Stainless Steel (ASTM A403 WP304/316), Alloy Steel (ASTM A420 WPL6) |
| Type | Stub End |
| Temperature Range | -29°C to 593°C (-20°F to 1100°F) |
| Corrosion Resistance | High resistance to corrosion in various environments, suitable for harsh conditions |
| Standards | ASTM A234, ASME B16.9, MSS SP-75, ASME B16.5 (Flanges) |
| Sizes | 1/2" to 48" (custom sizes available) |
| Applications | Used in flange connections within pipeline systems, including oil & gas, chemical processing, and waterworks |
| Production Technique | Butt Welding |
Dimension Chart :
| Nominal Pipe Size | Outside diameter of barrel | Length (F) | Radius (R) | Diameter (G) | ||
|---|---|---|---|---|---|---|
| Minimum | Maximum | Long Pattern | Short Pattern | |||
| 1/2″ | 20.5 | 22.8 | 76 | 51 | 3 | 35 |
| 3/4″ | 25.9 | 28.1 | 76 | 51 | 3 | 43 |
| 1″ | 32.6 | 35.0 | 102 | 51 | 3 | 51 |
| 1 1/4″ | 41.4 | 43.6 | 102 | 51 | 5 | 64 |
| 1 1/2″ | 47.5 | 49.9 | 102 | 51 | 6 | 74 |
| 2″ | 59.5 | 62.4 | 152 | 64 | 8 | 92 |
| 2 1/2″ | 72.2 | 75.3 | 152 | 64 | 8 | 105 |
| 3″ | 88.1 | 91.3 | 152 | 64 | 10 | 127 |
| 3 1/2″ | 100.8 | 104.0 | 152 | 76 | 10 | 140 |
| 4″ | 113.5 | 116.7 | 152 | 76 | 11 | 157 |
| 5″ | 140.5 | 144.3 | 203 | 76 | 11 | 186 |
| 6″ | 167.5 | 171.3 | 203 | 89 | 13 | 216 |
| 8″ | 218.3 | 222.1 | 203 | 102 | 13 | 270 |
| 10″ | 272.3 | 277.2 | 254 | 127 | 13 | 324 |
| 12″ | 323.1 | 328.0 | 254 | 152 | 13 | 381 |
| 14″ | 354.8 | 359.9 | 305 | 152 | 13 | 413 |
| 16″ | 405.6 | 411.0 | 305 | 152 | 13 | 470 |
| 18″ | 456.0 | 462.0 | 305 | 152 | 13 | 533 |
| 20″ | 507.0 | 514.0 | 305 | 152 | 13 | 584 |
| 22″ | 558.0 | 565.0 | 305 | 152 | 13 | 641 |
| 24″ | 609.0 | 616.0 | 305 | 152 | 13 | 692 |
Applications of Stubends Butt Weld Fittings:
Stubends are used to provide a smooth transition from a pipe to a flange or other fitting. They are commonly utilized in various piping systems to facilitate connections and provide a secure and leak-proof joint. Key applications include:
- Oil and Gas Industry: Used to connect pipes to flanges and other components in pipelines, ensuring a secure and leak-proof joint in high-pressure and corrosive environments.
- Chemical Processing: Facilitates the connection between pipes and process equipment or flanges, ensuring reliable and tight connections in chemical handling systems.
- Water and Wastewater Management: Applied in treatment plants to connect pipes to flanged equipment, providing a robust and leak-proof connection.
- Power Generation: Used to connect pipes to flanges in steam, water, and cooling systems, ensuring the integrity and safety of power plant operations.
- HVAC Systems: Facilitates the connection between ducts and flanged components, ensuring a secure and efficient seal in heating, ventilation, and air conditioning systems.
- Pulp and Paper Industry: Connects pipes to flanges and other equipment, ensuring a reliable and secure joint in processing systems.
- Automotive Industry: Used to connect exhaust systems and other components to flanges, providing a secure and leak-proof joint in vehicle exhaust systems.