Grooved 90° Reducing Elbow With Female Threaded Outlet
- Outside diameter tolerance: ±0.01~0.03 inches
- Safety certification: UL/FM certified
- Thread standard: NPT or BSPT
- Applicable temperature: -20℃ to 120
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Grooved connection: Grooved end, American standard Victaulic clamps for easy installation and strong sealing, 90° angle design, different diameters at both ends (e.g. NPS 2×1.5), suitable for pipe diameter changeover.
Grooved 90° Reducing Elbow With Female Threaded Outlet
- Dimensional specifications: Follow ASME B16.9 OD tolerances (±0.01 to 0.03 inches) for compatibility with U.S. standard piping systems.
- Depth tolerance: groove rolling depth tolerance needs to be controlled within ±0.004 inches (0.1 mm) to effectively avoid seal failure.
- Standards compatibility: grooved ends meet ASME B16.9 dimensional tolerances, and female connections support NPT/BSPT standards.
- Application Scenarios: Class 300 ductile iron (720 psi) for fire protection systems and Class 150 (275 psi) for general water systems.
- Galvanized/Coated Protection: In outdoor environments, ductile iron fittings require galvanized or epoxy coating to prevent corrosion.
Interface specifications and sealing
| Parameter | Grooved End | Female Threaded Interface |
| Connection Standard | ASME B16.9（OD tolerance ±0.03 inch） | NPT（American Tapered Pipe Thread） or BSPT（British Tapered Pipe Thread） |
| Compatible Accessories | Victaulic-style couplings | Pressure gauges, relief valves, etc. |
| Sealing Ring Material | EPDM（water/air） | Additional sealant (e.g., PTFE tape or thread adhesive) required |
| FKM（weak acid/alkali media） | ||
| Installation Torque Limit | Coupling bolt torque ≤40 N·m | Thread tightening torque ≤30 N·m |