Fittings are formed from material that meets the same exacting standards as our process tubing. We begin the process with a heavier wall to offset the thinning that occurs during manufacturing. Cardinal UHP fittings undergo a thorough preparation process to insure corrosion resistance as well as stringent dimensional specifications for economical installation.
First, welds are mechanically polished, and when required, fittings are electropolished and passivated. All welds are 100% visually inspected and mass spectrometer helium leak tested to 1x10 -9 cc/sec. Finally, the fittings are cleaned, capped, and bagged to meet the required specification.
TECH 10
- Average surface roughness of 25 µin / 0.63 µm Ra.
- High quality ASTM 269 and ASTM 270 316L SS tubing
- Controlled sulfur for consistent weldability.
- Exceeds CFOS CGA G4.1 cleaning.
- Fully passivated with nitric acid.
- Rinsed with DI water, purged with filtered nitrogen, capped and individually bagged in heat sealed polyethylene.
- Used for analyzer sample lines, O2 piping (CFOS), medical gas distribution and vent lines.
- Cleaned to ASTM G93-96 Level A.
TECH 20
- Chemically polished with an average surface roughness of 15 μin / 0.20 μm Ra.
- High quality ASTM 269 and ASTM 270 316L SS tubing.
- Low particulate cleaning.
- Final cleaning and packaging performed in a cleanroom.
- DI water final rinse, purged with filtered nitrogen until dry, capped and individually bagged in heat sealed polyethylene.
- Used for general high purity systems, such as high grade analyzer lines, compressed dry air, argon, nitrogen and other inert bulk gas services.
- Cleaned to ASTM G93-96 Level A.
TECH 50
- Electropolished with an average surface roughness of 7 μin / 0.18 μm Ra.
- 316L SS tubing meets ASTM specifications for consistent physical, dimensional and chemical composition.
- Restricted sulfur content insures consistent weldability and low non-metallic inclusions.
- Final cleaning and packaging performed in a Class 10 cleanroom.
- 0.1 μ filtered 18 Megohm 60°C DI water rinse until effluent surpasses 17.5 Megohm.
- Dried with 0.005 μ filtered 120°C Nitrogen.
- Ends are sealed by pressing LDPE caps over polyamide nylon film.
- Individually double bagged in heat sealed polyethylene.
- Subjected to numerous quality verification tests including: particle and moisture analysis, SEM, ESCA and Auger.
- Used for ultra high purity gas distribution systems.
