NKSSCC-20S-P 20 mm Pressure Release Aluminum Crimp Cap With Pharma-Fix Butyl Septa (CAT#: STEM-AL-0081-ZJF)

This product is a 20 mm pressure-release aluminum crimp cap for ND20 headspace vials. It is configured with grey PTFE/Pharma-Fix butyl septa and an 8 mm center hole. The integrated pressure-release function supports safer headspace operation under elevated internal vial pressure. The cap helps maintain a secure closure while reducing evaporation and contamination risk. The septa provide a puncturable sealing interface for autosampler workflows. The aluminum cap body is designed for crimp top vial sealing. It is compatible with 6 mL, 10 mL, and 20 mL ND20 crimp top headspace vials. This model is suitable for headspace analysis on compatible autosampler platforms.

Closure Type: Pressure-release crimp cap
Nominal Diameter: N 20
Cap Size: 20 mm
Center Hole: 8 mm
Cap Color: Silver with safety feature
Cap Material: Aluminum
Septa Material: Grey PTFE/Pharma-Fix butyl
Septa Thickness: 3 mm
Special Feature: Pressure release
Maximum Temperature: 180 C
Compatible Vials: 6 mL, 10 mL, and 20 mL ND20 crimp top headspace vials
Autosampler Compatibility: Agilent, Perkin Elmer, Shimadzu, Varian/Bruker
Technique: Headspace

Pressure-release safety design
Aluminum crimp cap construction
PTFE/Pharma-Fix butyl septa configuration
Helps reduce evaporation
Helps limit sample contamination
Compatible with ND20 headspace vials
Supports autosampler needle access
Suitable for headspace analysis