A Stub End Forged Fitting is a specialized component used with a lap joint flange for connecting pipes. This setup allows for easy disassembly and maintenance by enabling rotational alignment of the flange, making it perfect for systems needing frequent inspection or replacement. Manufactured through forging processes, these stub ends offer excellent mechanical strength, corrosion resistance, and dimensional accuracy. They are commonly produced from carbon steel, stainless steel, and alloy steels for use in oil & gas, chemical processing, petrochemical, and water treatment plants. As a key component in high-pressure, corrosive, or cyclic service environments, they ensure a secure, leak-free joint.
| Specification | Details |
|---|---|
| Product | Stub End Forged Fittings |
| Size Range | 1/2" to 24" (DN15 to DN600) – Custom sizes available |
| Pressure Ratings | Class 150, 300, 600, 900, 1500, 2500 (As per ASME B16.11) |
| Type | Short Stub End, Long Stub End |
| Standards | ASME B16.9, ASME B16.11, ASTM A234, ASTM A403, MSS-SP-43, MSS-SP-75, ISO 9001 |
| Material Grades |
Carbon Steel: ASTM A105, A234 WPB Stainless Steel: 304, 304L, 316, 316L Alloy Steel: ASTM A182 F1, F11, F22 Duplex Steel: UNS S31803, S32205 Nickel Alloys: Inconel 600/625, Monel 400, Hastelloy C276 |
| Manufacturing Process | Forged, Heat Treated, Precision Machined |
| Ends | Butt Weld Ends (for use with lap joint flanges) |
| Surface Finish | Black Painted, Pickled, Sand Blasted, Polished, Anti-Rust Coated |
| Testing & Certification | Hydrostatic Test, NDT (UT, RT, MT), PMI, Hardness Test, TPI Inspection, Mill Test Certificates (EN 10204 3.1 / 3.2) |
| Applications | Oil & Gas, Petrochemical, Chemical Processing, Power Plants, Water Treatment, Food & Beverage, Marine Industries |
| Special Features | Easy Flange Alignment, Reusable Flange Connection, Reduced Welding Stress, Corrosion Resistance, Suitable for Corrosive and Cyclic Applications |
| Stub End Forged Fitting Design Features |
Forged Construction: Ensures high mechanical integrity and durability. Flange Compatibility: Designed for lap joint flanges, allowing easy alignment. Dimensional Accuracy: Precision machined for proper mating and leak-proof performance. Standard Compliance: Meets ASME B16.9, B16.11, MSS-SP-43, and ASTM specifications. Operational Flexibility: Ideal for systems requiring frequent disassembly and inspection. |
Stub ends are designed to be used with lap joint flanges for easy flange rotation and bolt alignment, reducing installation time.
Manufactured using advanced forging processes to deliver exceptional strength, pressure containment, and dimensional stability.
Meets international standards such as ASME B16.9, ASME B16.11, MSS-SP-43, and ASTM specifications for global compatibility.
Stub ends allow for quick pipe disconnection and reinstallation, making them ideal for systems requiring frequent inspection or cleaning.
Available in carbon steel, stainless steel, duplex steel, and nickel alloys to suit corrosive and high-stress environments.
Widely used in oil & gas, petrochemical, power generation, chemical plants, and water treatment industries.