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Coaxial Tubing and Fittings
TCA Series
TCA Series Coaxial Tubing and Fittings feature an inner process tube that meets the high cleanliness and high performance requirements of ultra high purity fluid systems through strict specifications for raw materials, electropolishing, cleaning and packaging. An outer safety tube provides safe distribution of the overflow fluid in the unlikely event of a leak in the process tube. The double tube system is simple and easy to install with only orbital welding and can be integrated into existing systems and facilities.
The inner process tube meets the high cleanliness and high performance requirements of ultra high purity fluid systems through strict specifications for raw materials, electropolishing, cleaning and packaging. The outer safety tube provides safe distribution of the overflow fluid in the unlikely event of a leak in the process tube. The double tube system is simple and easy to install with only orbital welding and can be integrated into existing systems and facilities.
Chemically Cleaned and Passivated and Thermocouple-Cleaned Tubing
Chemically cleaned and passivated tubing complies with ASTM G93, Level A requirement for nonvolatile residue levels and also meets requirements of CGA G4.1.
Thermocouple-cleaned tubing meets the cleanliness requirements of ASTM A632-S3.
Features
- Materials:
Inner tube: 316L, 316L VAR, 316L VIM-VAR
Outer tube: 316L, 304L - Outside diameters:
Inner tube: 1/4″ ~ 2″
Outer tube: 1/2″ ~ 2 1/2″ - Process:
Inner tube: internal surface electropolished to roughness of Ra<5 pin (0.13 pm), Ra<7 pin (0.18 μm), Ra<10 pin (0.25 μm)
Outer tube: internal surface bright annealed or bright annealed after precision cold working to roughness of 15 μin (0.38 um), Ra<20 μin (0.51 um), Ra<32 μin (0.8 μm), Ra<63 pin (1.6 μm); external surface machine finished to roughness of Ra<63 pin (1.6 μm)
- Cleaning: ultrasonically cleaned and rinsed, then washed, and purged and dried with UHP hot nitrogen in ISO 4 cleanroom
- Packaging: assembled in ISO 4 cleanroom, tubing ends are capped and tubing is packed in double polyethylene bags with inner bag filled with 99.99999% nitrogen
- Marked with brand, inner tube grade, inner tube specification, inner tube heat number, outer tube grade, outer tube specification, outer tube heat number
- Standard length: 20 ft and 6 m
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