Description
- VAFS Series (Stainless Steel)
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Models: VAFS-3 through VAFS-14 (fitting copper tubing from 3/8 in. up to 3-1/8 in. O.D.).
- Key Materials: Stainless Steel flexible tubing and Stainless Steel high tensile wire braid.
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Primary Feature: High Pressure & Reliability
- Designed for use with modern, higher-pressure refrigerants, such as R410
- Smaller sizes (VAFS-3 through VAFS-12) have a standard Maximum Working Pressure (MWP) of 650 psig (45 bar).
- They are often electrically welded without braze joints for improved strength and reliability, eliminating a potential failure point common in older designs.
| Feature | Description | Benefit |
| Deep Pitch Corrugated Tubing | The internal flexible element has deeply spaced corrugations. | Maximum flexibility and superior vibration absorption. |
| High Tensile Wire Braid | An external braided wire covering the flexible tube. | Superior strength and durability to contain high-pressure refrigerant. |
| Rigorous Testing | Each unit is pressure tested and then vacuum tested using a sensitive helium mass spectrometer leak detection device. | Ensures the highest degree of leak integrity and system cleanliness. |
| Cleanliness | Units are cleaned, dehydrated, and sealed in plastic film after final inspection. | Guarantees cleanliness and dryness prior to installation into the refrigeration system. |
| Approvals | UL Recognized (Underwriter’s Laboratories) for both suction and discharge line applications. | Industry-recognized safety and performance standard. |
. Materials of Construction
The use of Stainless Steel is the primary defining feature.
| Component | Material | Notes |
| Flexible Tube | Stainless Steel (Typically Type 321 or 304L) | Provides higher tensile strength and flexibility. Type 321 is excellent for systems with temperature variations. |
| Protective Braid | Stainless Steel Wire Braid (Typically Type 304) | Provides maximum reinforcement and is resistant to corrosion and mechanical damage. |
| End Connections | Copper (Female Tube Ends) | For connection via brazing into standard copper piping, ensuring system compatibility. |
| Joining Method | TIG Welded (Tungsten Inert Gas) | The Stainless Steel tube and braid are electrically welded to the copper ends, creating a much stronger, more reliable joint than the braze-joint used on VAF models. |
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