Precision Socket Weld Flanges for High-Leak Integrity in Small-Diameter Piping
Vardhman Steel Overseas is a leading manufacturer and supplier of Socket Weld Flanges (SW Flanges), designed for high-integrity connections in small-diameter, high-pressure piping systems. These flanges are fillet welded on the outside and feature a recessed socket for inserting the pipe, ensuring accurate alignment and enhanced flow characteristics.
Socket Weld Flanges are ideal for systems requiring high leakage integrity and structural strength, commonly used in Hydraulic Lines, Steam Systems, Oil & Gas Facilities, Chemical Processing Units, Power Plants, and High-Pressure Compact Installations. They are particularly effective in pipelines where space is limited and welding access is restricted.
Our Socket Weld Flanges are produced in strict accordance with international specifications including ASME B16.5, ASME B16.47 (Series A/B), EN 1092-1, ANSI, DIN, and BS. These flanges are available in pressure classes from 150 up to 2500 and sizes ranging from ½” NB to 24” NB, with face types like Raised Face (RF), Flat Face (FF), and Ring Type Joint (RTJ).
Each flange is subjected to strict quality control procedures, including testing for dimensional precision, material composition, and pressure resistance. We offer Mill Test Certificates (MTCs) and Third-Party Inspections by renowned agencies such as TUV, BV, DNV, and Lloyds.
Partner with Vardhman Steel Overseas for premium-grade Socket Weld Flanges that deliver superior weld integrity, reduced internal turbulence, and compact performance in high-pressure piping environments.
Available Materials & Grades
Our Socket Weld Flanges are offered in a wide range of high-performance materials and grades to suit demanding industrial requirements and corrosive service environments.
| Material Type | Common Grades |
|---|---|
| Stainless Steel | 304, 304L, 316, 316L, 310S, 321, 347, 904L |
| Carbon Steel | A105, A350 LF2, A516 Gr.60/70 |
| Alloy Steel | A182 F1, F5, F9, F11, F22, F91 |
| Duplex Steel | UNS S31803, UNS S32205 |
| Super Duplex Steel | UNS S32750, UNS S32760 |
| Inconel | 600, 601, 625, 718 |
| Incoloy | 800, 800H, 800HT, 825 |
| Monel | 400, K500 |
| Hastelloy | C22, C276, B2 |
| Titanium | Grade 2, Grade 5 (Ti-6Al-4V) |
| Nickel Alloy | Nickel 200, Nickel 201 |
| Copper Alloys | Copper, Brass, Bronze, Cupro Nickel 90/10 & 70/30 |
Socket Weld Flange – Technical Specifications
Explore the key technical specifications of our precision Socket Weld Flanges engineered and supplied by Vardhman Steel Overseas.
| Specification Parameter | Details |
|---|---|
| Product Name | Socket Weld Flange (SW Flange) |
| Size Range | ½” NB to 24” NB |
| Pressure Ratings | Class 150, 300, 600, 900, 1500, 2500 |
| Facing Types | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF) |
| End Connection | Socket Weld |
| Manufacturing Method | Forged / Machined |
| Applicable Standards | ASME B16.5, ASME B16.47 Series A & B, EN 1092-1, DIN, ANSI, BS |
| Testing & Certification | Hydro Testing, PMI, UT, RT, MTC as per EN 10204 3.1 / 3.2, Third-Party Inspection (TPI) |
Features & Benefits
Socket Weld Flanges from Vardhman Steel Overseas are engineered for high-integrity connections in small-bore, high-pressure piping systems. These flanges provide excellent fatigue strength and leakage resistance, making them ideal for compact and high-load applications.
- High Pressure Performance – Designed for small diameter, high-pressure piping systems in critical environments.
- Strong Fatigue Resistance – Ideal for systems with vibration or thermal cycling due to its fillet weld and recessed pipe socket.
- Accurate Pipe Insertion – Socket design ensures precise pipe alignment before welding for a secure joint.
- Compact Configuration – Space-saving design suitable for tight, constrained installations.
- Internal Fillet Weld – Ensures robust sealing and joint strength without needing bevel preparation.
- Available in Multiple Face Types – Supplied in Raised Face (RF), Flat Face (FF), and RTJ configurations.
- Standard-Compliant Manufacturing – Meets ASME B16.5, B16.47, EN 1092-1, and other global standards.
- Corrosion & Heat Resistant Alloys – Offered in stainless, alloy, duplex, nickel alloys, and more for challenging environments.
- Easy Inspection & Maintenance – Simplifies visual and non-destructive inspection of the welded joint.
- Trusted Across Industries – Widely used in refineries, chemical plants, high-pressure steam, and hydraulic lines.