18 mm PTFE/Butyl Assembled Cap and Septa, red, PTFE/Buytl, 100/PAK

For sealing sample vials for temperatures up to 130°C. Very low background peaks, lowest permeability, not recommended for repetitive injections from the same vial or for storage.

We offer a variety of GC headspace vials, caps and septa to fulfil your application needs. Our patented vial and cap design incorporates pressure-relief features which guarantee safe operation with the high pressure typically developed during thermostatting. Ordinary vials and caps without these safety features may burst. All of our headspace vials have a greater wall thickness and round base which enables them to withstand pressure up to 60 psig. Low-volume sampling can be achieved by using a 6 mL vial and vial adapter. All PerkinElmer headspace vials are manufactured to specific tolerances that are guaranteed for fit and performance. Note: Due to the patent which PerkinElmer holds on the closures system of the Headspace vials, the caps, septa, and star springs cannot be sold separately. Vial Top Type Cap Type Septa Material Septa Thickness Quantity Screw Top Magnetic Steel PTFE/Butyl (Red) 3.0 mm 100