Flanges
Threaded Flanges
Threaded flanges connect to pipes via NPT or BSP threads, eliminating the need for welding. They are used in small-bore, low-to-moderate pressure applications and in situations where welding is not feasible (e.g., explosive atmospheres or existing lines). Shree Raj Steels supplies threaded flanges from 1/2" to 4" in Class 150 through 2500.
Size: 1/2" – 4" | Class 150 – 2500Standards: ANSI B16.5, ASME B1.20.1 (NPT)

ISO Certified Quality
Full material traceability & mill test certificates.
Technical Specifications
| Size Range | 1/2" – 4" |
|---|---|
| Pressure Class | 150, 300, 600, 900, 1500, 2500 |
| Thread | NPT (ASME B1.20.1) / BSP (BS 21) |
Surface Finish / Coating
BareAnti-Rust OilGalvanised
Available Grades
Carbon Steel
- ASTM A105
Stainless Steel
- ASTM A182 F304/L
- ASTM A182 F316/L
Applications
Small-Bore Piping
Air & Gas Lines
Fire Protection
Hazardous Areas (no welding)
Key Features
- No welding required
- Easy installation and removal
- Suitable for hazardous areas
- Self-sealing with thread sealant
Manufacturing Standards
ANSI B16.5
ASME B1.20.1 (NPT)
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