PEEK is common in analytical systems, but these sizes still require model-specific pressure, temperature and connection data. The material name alone does not qualify the assembly.
PEEK PEEK Capillary Tubing for HPLC, 1/16" and 1/32" OD, 0.8/0.2 mm ID
PEEK (polyether ether ketone) tubing combines high strength and rigidity with good resistance to many commonly used organic solvents. It is commonly used in small-bore fluid paths in liquid chromatography and other analytical instruments, as well as sample and reagent connections requiring nonmetallic tubing.
Two sizes are available: 0.2 × 0.8 mm and 0.8 × 1.6 mm (ID × OD), supplied by the roll. A small bore helps control the internal volume of the line; select dimensions according to tubing length, target flow rate and allowable pressure drop. Each OD requires matching fittings or adapter sleeves, with the port geometry and sealing method also checked.
FOREACH holds ISO 9001 and ISO 13485 quality management system certifications and supports sample testing. The availability of compliance documentation, including RoHS reports, is confirmed for the selected model and project requirements. PEEK is not recommended for concentrated sulfuric acid, concentrated nitric acid and similar media. Solvents such as tetrahydrofuran (THF), dichloromethane and dimethyl sulfoxide (DMSO) may cause swelling or loss of strength. For high-pressure use, first confirm the rated working pressure and applicable temperature of the selected tubing size and fittings.
Typical Applications:
Connections in liquid chromatography and other analytical instruments, Small-bore sample and reagent transfer, Fluid paths requiring nonmetallic tubing
PEEK tubing selection
Select inner diameter, outer diameter and supply specifications, then save the configuration for your inquiry.
Material properties
| Density (g/cm³) | 1.32 |
|---|---|
| Tensile Strength (MPa) | 180 |
| Flexural Strength (MPa) | 265 (ASTM D790) |
| Dielectric Strength (kV/mm) | 24 |
| Water Absorption (%) | 0.2 (ISO 62) |
| Operating Temperature (℃) | -180~225 |
| Coefficient of Thermal Expansion (cm/cm/°C) | 4.5X10⁻⁵ |
| Melting Temperature (°C) | 343 |
Frequently Asked Questions
Need to confirm your PEEK tubing specification and conditions?
Share the fluid, concentration, ID/OD, length, temperature, pressure or vacuum, fittings and routing requirements. FOREACH can help review your PEEK tubing and connection configuration.