Tech Sheets

Industry Standard Double Containment tubing, also called Dual Containment tubing, has an inner tube of High Purity PFA for transfer of harsh chemicals and an outer tube of FEP as a containment safeguard against possible hazardous leaks. 

The “tube-in-tube” design does not introduce contaminants during the installation process. Long, continuous lengths can be maintained without welding or heat bending processes.

Zeus Double Containment tubing exceeds the stringent requirements of the SEMI F57 specification. We also offer a wide array of semiconductor industry standard and custom sizes, as well as options for material combinations.

Our capabilities include manufacturing standard Double Containment tubing in sizes ranging from .047 to .063 wall and 1/4” OD to 1-1/4” OD. The product is end capped and also available with special packaging options, such as pre-cut spool lengths and custom laser marking. 

Key Properties:

  • Excellent surface smoothness
  • Low gas permeability
  • Chemically resistant to all common solvents
  • Maintains mechanical strength at high temperatures
  • Superior high purity properties

Additional Properties:

  • SEMI F57 certified material
  • Protects against ionic contamination
  • Ultra-low metallic and organic extractables
  • Flame resistant: UL 94 VO
  • Special packaging options
  • Thermal stability

Special Packaging Types:

  • End capped
  • Clean room packaged
  • Private labeled
  • Custom laser marked
Physical Properties Test Method PFA
Continuous Service Temp. Range - -320°F TO 500°F
Hardness, Shore D ASTM D2240 55-64
Tensile Strength, Ultimate ASTM D638 3630-4100 PSI
Tensile Strength, Yield ASTM D638 2180-4100 PSI
Elongation at Break ASTM D638 300%
Tensile Modulus ASTM D638 10-90 KSI
Flexural Modulus ASTM D790 80-95 KSI
Izod Impact, Notches ASTM D256 >1.2
Coefficient of Friction ASTM D1894 0.21

 

PFA & FEP Tubing - Properties
Polymer Elongation (ASTM D638) Tensile Strength (ASTM D638) Flexural Modulus (ASTM D790) Max Service Temperature Min Service Temperature Chemical Resistance Coefficient of Friction (ASTM D1894)
FEP 300-380% 91 Mpa 0.5 Gpa 392°F/200°C -400°F/-240°C excellent 0.005
PFA 340-400% 19-39 Mpa 0.5-0.6 Gpa 500°F/260°C -450°F/-268°C excellent 0.2

 

HP PFA* Tubing - Standard Sizes
Line OD (inches) OD Tolerance (inches) Wall (inches) Wall Tolerance (inches) BURST PRESSURE** (PSI @ 72°F)
Primary 1/4 +/- 0.005" 0.047 +/- 0.005" 1600
Secondary Containment 1/2 +/- 0.005" 0.063 +/- 0.005" 1050
Primary 1/2 +/- 0.005" 0.063 +/- 0.005" 1050
Secondary Containment 3/4 +/- 0.005" 0.063 +/- 0.005" 700
Primary 3/4 +/- 0.005" 0.063 +/- 0.005" 700
Secondary Containment 1 +/- 0.006" 0.063 +/- 0.007" 525
Primary 1/2 +/- 0.005" 0.063 +/- 0.005" 1050
Secondary Containment 1 +/- 0.006" 0.063 +/- 0.007" 525

 

Technical Sales Sheets