Product Description
Cajon Stainless Steel Flexible Tube with VCR Fittings – Approximately 12″ Length
This used Cajon stainless steel flexible tube assembly features VCR (Vacuum Coupling Radius) fittings on both ends, approximately 12 inches in length. These high-purity components are designed for critical applications requiring leak-tight connections in vacuum, gas, and high-purity fluid systems.
Cajon, now part of Swagelok, is the industry standard for high-quality fittings in semiconductor, pharmaceutical, biotech, and research applications.
About Cajon Flexible Tubing
Cajon flexible tubing is manufactured from 321 stainless steel and designed to be compressible by at least 20% and extendable by 50% of its nominal length . This flexibility accommodates:
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Thermal expansion and contraction
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Vibration dampening
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Misalignment between components
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Easy connection in tight spaces
Important Note: When used in vacuum applications, flexible tubing will contract when evacuated. Glass or other rigid apparatus should not be firmly clamped until vacuum is established within the system .
About VCR Fittings
VCR fittings are metal-gasket face-seal fittings designed for:
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Ultra-high vacuum (UHV) applications
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High-purity gas systems in semiconductor processing
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Zero dead volume connections
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Leak-tight sealing down to 1×10⁻⁹ atm-cc/sec
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Repeatable make/break capability
The fittings feature a precision machined gland with a gasket that is compressed between two faces to form the seal.
Key Specifications
| Specification | Details |
|---|---|
| Manufacturer | Cajon (now Swagelok) |
| Type | Flexible tubing with VCR fittings |
| Length | Approximately 12 inches |
| Material | 321 Stainless Steel (tubing); 316 Stainless Steel (fittings typical) |
| Fitting Type | VCR (metal gasket face seal) |
| Compressibility | At least 20% |
| Extendability | Up to 50% of nominal length |
| Application | Vacuum systems, high-purity gas, semiconductor, pharmaceutical |
| Pressure Rating | [High – VCR fittings rated for significant pressure] |
| Temperature Range | [Wide – stainless steel suitable for cryogenic to elevated temperatures] |
Features & Benefits
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Flexible Design: Accommodates vibration, thermal expansion, and misalignment
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VCR Connections: UHV-compatible, leak-tight seals
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Stainless Steel Construction: Corrosion-resistant, durable, high-purity
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No Internal Volume: VCR fittings provide zero dead volume
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Reusable: Fittings can be remade with new gaskets
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Cleanable: Suitable for high-purity applications
Applications
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Semiconductor Processing: Ultra-high-purity gas lines
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Vacuum Systems: UHV chamber connections
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Research Laboratories: Gas and vacuum plumbing
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Pharmaceutical/Biotech: High-purity fluid transfer
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Analytical Instruments: Gas chromatography, mass spectrometry
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Cryogenics: Flexible connections for cryogenic fluids
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Aerospace/Defense: Critical fluid handling systems
Condition
SOLD AS IS
USED – SHOWS NORMAL WEAR (scuffs, minor marks)
NO MATING FITTINGS OR GASKETS INCLUDED
PICTURE MAY NOT MATCH PRODUCT
| Weight | 2.1 lbs |
|---|---|
| Dimensions | 12 × 9 × 2 in |
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