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The 90-Degree Stainless Steel Female Thread Elbow Fittings are precision-engineered pipe components designed to change pipe direction in threaded piping systems while maintaining structural integrity and leak resistance. Manufactured from high-grade 316 stainless steel (ASTM A312), these elbows feature smooth internal surfaces and accurate thread dimensions to ensure seamless flow and secure connections in corrosive and high-purity applications.
Premium Material & Construction:
316 stainless steel (3.5% molybdenum content) offers superior resistance to chloride-induced pitting and crevice corrosion, 50% more durable than 304 stainless steel in marine environments.
Investment casting process ensures uniform wall thickness (±10% tolerance) and smooth bore (Ra ≤1.6μm), reducing turbulence and sediment buildup.
Precision Threading:
Female NPT threads (ANSI/ASME B1.20.1) with 60° thread angle and 11.5 threads per inch (for 1/2"-2" sizes), tested to 1.5x working pressure for leak-free connections.
Chamfered inlet/outlet edges prevent burrs and facilitate pipe insertion, reducing installation time by 20%.
Versatile Design:
Available in nominal pipe sizes (NPS) 1/8" to 4", with schedule 40 (standard pressure) and schedule 80 (high-pressure) options (up to 3,000 PSI).
90° angle provides optimal flow direction change while minimizing pressure loss, with radius equal to 1.5x pipe diameter for smooth laminar flow.
Compliance & Certification:
Meet ASTM A312, ASME B16.11, and MSS SP-83 standards, with material traceability reports available for critical applications (e.g., pharmaceutical, aerospace).
Passivated surface (oxide layer removal) for high-purity systems, reducing metal ion leaching in deionized water and chemical processes.
Ideal for piping systems requiring corrosion resistance and precise direction change:
Marine Engineering: Saltwater cooling systems, shipboard piping, and offshore platforms, with 316 stainless steel resisting seawater corrosion for 10+ years.
Chemical Processing: High-purity chemical transfer lines, compatible with aggressive media like sulfuric acid, sodium hydroxide, and organic solvents.
Food & Pharmaceutical: Sanitary applications with electropolished surfaces (Ra ≤0.8μm), compliant with 3-A Sanitary Standards and FDA 21 CFR Part 177.
HVAC & Refrigeration: Condensate lines, refrigerant pipes, and compressed air systems in harsh environments (e.g., coastal facilities, industrial freezers).
Q: Can these elbows be welded instead of threaded?
A: No, these are threaded fittings; for welded applications, use butt-weld elbows (ASTM A403 WP316).
Q: What is the temperature range for 316 stainless steel?
A: -250°C to 800°C, suitable for cryogenic and high-temperature processes with proper thermal insulation.
Q: How to clean the passivated surface for high-purity systems?
A: Flush with deionized water or use non-abrasive cleaners; avoid chloride-based solvents to maintain corrosion resistance.
Q: Are there non-magnetic options available?
A: Yes, 316L stainless steel (low carbon) offers low magnetic permeability, ideal for magnetic resonance imaging (MRI) facility piping.
| Parameter | Value |
|---|---|
| Shape | Reducing |
| Angle | 90° |
| Material | Cast Iron |
| Surface Treatment | Hot-Dip Galvanized |
| Standards | BS, DIN, NPT |
| Application | Water Systems |
| Size | 1/2″ - 4″ |
| Packaging | Carton Packaging |
| Hardness | ≤ HB 180 |
| Tensile Strength | ≥ 330 N/mm² |
| Galvanization Thickness | ≥ 100 µm |
| Test Pressure | 2.4 MPa |
| Working Pressure | 1.6 MPa |
| Certification | ISO 9001 |
The 90-Degree Stainless Steel Female Thread Elbow Fittings are precision-engineered pipe components designed to change pipe direction in threaded piping systems while maintaining structural integrity and leak resistance. Manufactured from high-grade 316 stainless steel (ASTM A312), these elbows feature smooth internal surfaces and accurate thread dimensions to ensure seamless flow and secure connections in corrosive and high-purity applications.
Premium Material & Construction:
316 stainless steel (3.5% molybdenum content) offers superior resistance to chloride-induced pitting and crevice corrosion, 50% more durable than 304 stainless steel in marine environments.
Investment casting process ensures uniform wall thickness (±10% tolerance) and smooth bore (Ra ≤1.6μm), reducing turbulence and sediment buildup.
Precision Threading:
Female NPT threads (ANSI/ASME B1.20.1) with 60° thread angle and 11.5 threads per inch (for 1/2"-2" sizes), tested to 1.5x working pressure for leak-free connections.
Chamfered inlet/outlet edges prevent burrs and facilitate pipe insertion, reducing installation time by 20%.
Versatile Design:
Available in nominal pipe sizes (NPS) 1/8" to 4", with schedule 40 (standard pressure) and schedule 80 (high-pressure) options (up to 3,000 PSI).
90° angle provides optimal flow direction change while minimizing pressure loss, with radius equal to 1.5x pipe diameter for smooth laminar flow.
Compliance & Certification:
Meet ASTM A312, ASME B16.11, and MSS SP-83 standards, with material traceability reports available for critical applications (e.g., pharmaceutical, aerospace).
Passivated surface (oxide layer removal) for high-purity systems, reducing metal ion leaching in deionized water and chemical processes.
Ideal for piping systems requiring corrosion resistance and precise direction change:
Marine Engineering: Saltwater cooling systems, shipboard piping, and offshore platforms, with 316 stainless steel resisting seawater corrosion for 10+ years.
Chemical Processing: High-purity chemical transfer lines, compatible with aggressive media like sulfuric acid, sodium hydroxide, and organic solvents.
Food & Pharmaceutical: Sanitary applications with electropolished surfaces (Ra ≤0.8μm), compliant with 3-A Sanitary Standards and FDA 21 CFR Part 177.
HVAC & Refrigeration: Condensate lines, refrigerant pipes, and compressed air systems in harsh environments (e.g., coastal facilities, industrial freezers).
Q: Can these elbows be welded instead of threaded?
A: No, these are threaded fittings; for welded applications, use butt-weld elbows (ASTM A403 WP316).
Q: What is the temperature range for 316 stainless steel?
A: -250°C to 800°C, suitable for cryogenic and high-temperature processes with proper thermal insulation.
Q: How to clean the passivated surface for high-purity systems?
A: Flush with deionized water or use non-abrasive cleaners; avoid chloride-based solvents to maintain corrosion resistance.
Q: Are there non-magnetic options available?
A: Yes, 316L stainless steel (low carbon) offers low magnetic permeability, ideal for magnetic resonance imaging (MRI) facility piping.
| Parameter | Value |
|---|---|
| Shape | Reducing |
| Angle | 90° |
| Material | Cast Iron |
| Surface Treatment | Hot-Dip Galvanized |
| Standards | BS, DIN, NPT |
| Application | Water Systems |
| Size | 1/2″ - 4″ |
| Packaging | Carton Packaging |
| Hardness | ≤ HB 180 |
| Tensile Strength | ≥ 330 N/mm² |
| Galvanization Thickness | ≥ 100 µm |
| Test Pressure | 2.4 MPa |
| Working Pressure | 1.6 MPa |
| Certification | ISO 9001 |
