Technical Specification: 2-1/8" 90-Degree Short Radius Copper Elbow
1. General Product Description
The component is a 90-degree short radius (SR) wrought copper elbow designed for use in high-pressure HVACR (Heating, Ventilation, Air Conditioning, and Refrigeration), plumbing, and industrial piping systems. The short radius geometry optimizes installation in tight, space-constrained configurations where standard long radius fittings cannot fit.
2. Dimensional Data
- Outside Diameter (O.D.): 2-1/8 inches (53.98 mm)
- Nominal Size (Plumbing Standard): 2 inches
- Angle of Bend: 90°
- Radius Style: Short Radius (SR) / Close Rough
- Connection Type: C x C (Cup-to-Cup) / Female Sweat (solder joint ends)
3. Material Specifications
- Material Composition: Wrought Seamless Copper
- Alloy Designation: UNS C12200 (Phosphorus-Deoxidized, High Residual Phosphorus - DHP)
- Purity: Minimum 99.9% Copper (Cu)
4. Performance & Operating Limits
- Maximum Working Pressure: 700 PSI (approximately 48.2 Bar) at continuous operating temperatures up to 250°F (121°C).
- Burst Pressure: Meets or exceeds structural safety margins dictated by ASME pressure piping codes.
- Flow Characteristics: Higher pressure drop coefficient compared to Long Radius fittings; must be factored into system hydraulics.
5. Industry Compliance & Certifications
- Dimensional & Manufacturing Standard: ASME B16.22 (Wrought Copper and Copper Alloy Solder-Joint Pressure Fittings)
- Material Quality Standard: ASTM B75 (Standard Specification for Seamless Copper Tube)
- Sanitary & Lead-Free Compliance: NSF/ANSI 61 & NSF/ANSI 372 (Safe for potable water applications)
- Safety Approvals: UL Listed / CRN (Canadian Registration Number) approved for pressurized refrigeration systems
6. Physical Characteristics
- Average Net Weight: Approximately 0.76 lbs (0.34 kg)
- Surface Finish: Clean, bright, and degreased to meet oxygen/refrigeration system hygiene standards.
