Threaded Flanges for Easy Assembly in Low-Pressure Piping Systems
Vardhman Steel Overseas supplies precision-manufactured Threaded Flanges (Screwed Flanges) ideal for quick assembly in systems where welding is impractical or undesirable. These flanges feature internal threads that match the external threads of the connecting pipe, allowing for a secure and leak-proof mechanical joint.
Threaded Flanges are commonly used in low-pressure and non-critical applications such as water distribution lines, compressed air systems, plumbing networks, fire protection systems, fuel pipelines, and maintenance-intensive industrial setups. They are ideal for use in hazardous zones where welding may present a fire or explosion risk.
These flanges are manufactured in strict compliance with standards like ASME B16.5, ASME B16.47 (Series A/B), EN 1092-1, DIN, ANSI, and BS. They are available in pressure ratings ranging from Class 150 to 2500 and sizes from ½” NB to 24” NB. Available face types include Raised Face (RF), Flat Face (FF), and Ring Type Joint (RTJ).
Every Threaded Flange undergoes rigorous inspection to ensure dimensional accuracy, thread conformity, and material strength. We provide full traceability with Mill Test Certificates (MTCs) and optional Third-Party Inspection services from agencies like TUV, Lloyds, DNV, and Bureau Veritas.
Choose Vardhman Steel Overseas for high-quality Threaded Flanges that deliver quick installation, reusability, and reliable sealing without the need for welding — ideal for piping systems that require regular disassembly or are exposed to flammable media.
Available Materials & Grades
Our Threaded Flanges are available in a comprehensive range of premium materials and grades to serve various pressure classes, corrosive environments, and industrial standards.
| 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 |
Threaded Flange – Technical Specifications
Discover the detailed specifications of our precision-engineered Threaded Flanges offered by Vardhman Steel Overseas, designed for ease of installation and maintenance.
| Specification Parameter | Details |
|---|---|
| Product Name | Threaded Flange (Screwed 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 | Internal Threaded (NPT/BSP) |
| 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
Threaded Flanges from Vardhman Steel Overseas are designed for ease of installation in low-pressure systems without the need for welding. These flanges are perfect for applications requiring frequent assembly, disassembly, or installation in hazardous environments.
- Weld-Free Installation – Ideal for systems where welding is impractical or hazardous, such as flammable or explosive environments.
- Reusable & Easy to Assemble – Enables simple and quick connection and disconnection for maintenance or system modifications.
- Internal Threaded Design – Provides tight, leak-proof mechanical joints compatible with NPT or BSP threaded pipes.
- Compact & Lightweight – Less bulky than welded flanges, making it suitable for compact or mobile systems.
- Ideal for Small Pipe Sizes – Best suited for nominal bore sizes under 4 inches and low to moderate pressure ratings.
- Available in All Face Types – Raised Face (RF), Flat Face (FF), and Ring Type Joint (RTJ) for compatibility with different gasket types.
- Conforms to International Standards – Manufactured in accordance with ASME B16.5, B16.47, EN 1092-1, DIN, and ANSI specifications.
- Material Versatility – Offered in stainless steel, carbon steel, alloy steel, and specialty alloys to meet environmental challenges.
- Excellent Thread Accuracy – Precision machining ensures consistent thread engagement and sealing integrity.
- Widely Applicable – Commonly used in utilities, fire protection, compressed air lines, waterworks, and low-pressure industrial piping.