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Help Center316L Stainless Steel VCR Male to Weld Tube Adapter for Ultra-High Vacuum Applications
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Shanghai Quanbao Electronic Materials Technology Co., Ltd., based in Shanghai, China, designs precision components for critical industrial applications. Our 316L Stainless Steel VCR Male to Weld Tube Adapter delivers exceptional reliability in ultra-high vacuum environments, ensuring leak-free connections between VCR interfaces and tubing systems. Engineered for sectors like semiconductor manufacturing and analytical instrumentation, this adapter minimizes contamination risks while maintaining structural integrity under extreme conditions.
Core Technical Specifications:
- Constructed from corrosion-resistant 316L stainless steel with low carbon content to prevent carbide precipitation
- VCR male gasket seal design ensures helium-leak-tight connections down to 10-9 atm·cc/sec
- Weld end preparation meets ISO-KF or CF flange standards for seamless integration
- Electropolished surface finish (Ra ≤ 0.25μm) minimizes particle retention
| Parameter | Value |
|---|---|
| Temperature Range | -50°C to 200°C |
| Pressure Tolerance | 10-10 Torr vacuum rating |
| Tube OD Compatibility | 1/4" to 1" (customizable) |
| VCR Size Options | 1/4" to 1/2" male connector |
Key advantages include elimination of thread galling through metal-to-metal sealing and reduced outgassing via optimized surface treatments. The weld tube end allows permanent, contamination-free joints, while the VCR interface enables reusable connections without compromising vacuum integrity. Customers report 30% fewer system leaks and extended maintenance intervals in particle-sensitive environments.
Frequently Asked Questions:
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Q: Can this adapter handle thermal cycling in cryogenic applications?
A: Yes, 316L's thermal stability maintains seal integrity during rapid temperature fluctuations. -
Q: What weld preparation is provided?
A: Tube ends feature beveled edges ready for orbital welding per SEMI standards. -
Q: Is electropolishing mandatory?
A: Optional but recommended for UHV; standard finish suits medium vacuum. -
Q: How does VCR sealing compare to compression fittings?
A: VCR offers superior leak-tightness with reusable assembly/disassembly capability. -
Q: Can I request custom tube diameters?
A: Absolutely, we provide tailored dimensions with 0.1mm tolerance control. -
Q: What cleaning protocols are used?
A: Components undergo solvent degreasing and ultrasonic cleaning for VOC-free delivery.
With over a decade of expertise in vacuum technology, Shanghai Quanbao leverages Shanghai's advanced manufacturing infrastructure to produce components traceable to international metrology standards. Our rigorous quality control includes coordinate-measuring machine verification and helium leak testing, ensuring every adapter exceeds UHV performance requirements. Partner with us for technical consultation or custom configurations to optimize your vacuum system efficiency.
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