Stainless Steel 304/316 Threaded Flange with NPT Female Threaded Connection ANSI B16.5 Class 150 Pipe Fitting
WNRLN offers premium forged stainless steel threaded flanges designed for low-pressure piping systems where welding is not practical or desired. Our threaded flanges feature NPT (National Pipe Tapered) threads conforming to ASME B1.20.1 standards, ensuring a secure and leak-free connection without the need for welding.
- Material Options: Available in ASTM A182 F304, F304L, F316, F316L stainless steel grades for superior corrosion resistance
- NPT Threaded Connection: Precision-machined NPT threads per ASME B1.20.1 for reliable sealing and easy installation
- Forged Construction: Manufactured from forged blanks with superior grain structure and mechanical properties compared to cast alternatives
- Raised Face (RF) Design: Standard RF facing with concentric serrated finish per ASME B16.5 for optimal gasket sealing
- Full Traceability: Each flange is marked with material grade, heat number, size, and pressure class for complete traceability
| Standard | ANSI/ASME B16.5 |
|---|---|
| Pressure Class | Class 150 (PN20) |
| Material Grades | ASTM A182 F304, F304L, F316, F316L |
| Size Range | 1/2" to 4" (DN15 to DN100) |
| Connection Type | NPT Female Threaded |
| Face Type | Raised Face (RF) |
| Manufacturing Process | Closed-Die Forging |
Ideal for water treatment, HVAC systems, fire protection piping, low-pressure steam lines, and chemical transfer systems where threaded connections are preferred. Suitable for non-critical services up to Class 150 pressure ratings.
Every threaded flange undergoes dimensional inspection, thread gauge verification, and visual examination before shipment. Material Test Certificates (MTC) per EN 10204 3.1 are provided with each order.
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