Upchurch Scientific® PEEK™ (polyetheretherketone) polymer tubing is biocompatible, chemically inert to most solvents, and can be used to replace stainless steel tubing in most liquid analytical systems.

• Unlike stainless steel tubing, PEEK™ tubing is flexible and can be easily cut to desired lengths
• PEEK™ tubing can be used with stainless steel or polymer fittings
• Autoclavable
• Sterilization: Gamma irradiation; ethylene oxide; thermal

Standard size PEEK™ polymer tubing is available in ¹/₁₆", ¹/₈", and 1.8 mm outside diameters, with maximum continuous use temperature of 100 °C. Much of the ¹/₁₆" outside diameter (ext.Ø) tubing is color-coded so different inside diameters (IDs) are easily identified. The proprietary extrusion process ensures color permanence in the tubing. Standard size PEEK™ tubing is commonly offered in 5' sections; however, most standard sizes are also available in 50 or 100' sections. The 5' length tubing is rough cut to approximately 5' 1". A trim cut should be made before use, especially for smaller ID tubing. PEEK™ tubing can be cut easily with a razor blade. However for an improved cut, try Upchurch Scientific® Tubing cutters.

Upchurch Scientific® capillary PEEK™ tubing offers all the benefits of larger sized PEEK™ tubing, while serving as an excellent alternative to more traditional fused silica and stainless steel capillary tubing. Capillary PEEK™ tubing is available in 510 µm or ¹/₃₂" outside diameters. The capillary tubing can be coupled to many other Upchurch Scientific® connectors and valve products.

PEEK™ tubing has a very smooth internal surface, which causes less turbulence than similar sized metal tubing, contributing to improved resolution of sample bands. Of all the Upchurch Scientific polymer tubing materials, PEEK™ tubing is the least permeable to gas.

Ext.Ø Tolerance: 1/32" OD: ±12.5 μm (0.0005"); 510 μm OD: ±25 μm (0.001"); 1/16" OD: ±25 μm (0.001"); 1.8 mm OD: ±50 μm (0.002"); 1/8" OD: ±75 μm (0.003")
Int.Ø tolerance: 1/32" OD: ±12.5 μm (0.0005"); 510 μm OD: ±25 μm (0.001"); 1/16" OD: ±25 μm (0.001"); 1.8 mm OD: ±50 μm (0.002"); 1/8" OD: ±75 μm (0.003")
Operating Temperature: -51 to 100 ° C (-59.8 to 212 °F)
pH Range: 0 – 14
Refractive Index: Opaque