NKSSCC-20S-G 20 mm Pressure Release Aluminum Crimp Cap With PTFE/Silicone Septa (CAT#: STEM-AL-0078-ZJF)

This product is a 20 mm pressure-release aluminum crimp cap for ND20 headspace vials. It is configured with an 8 mm center hole and beige PTFE/white silicone septa. The pressure-release design supports safer operation during headspace incubation where internal vial pressure may increase. The cap helps reduce sample evaporation and contamination during headspace analysis. The PTFE/silicone septa provide a sealing interface for autosampler needle penetration. The aluminum cap body supports crimp sealing on compatible headspace vials. It is compatible with 6 mL, 10 mL, and 20 mL ND20 crimp top headspace vials. This model is intended for headspace workflows using common 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: Beige PTFE/white silicone
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/silicone septa configuration
Helps reduce evaporation
Helps limit sample contamination
Compatible with ND20 headspace vials
Supports autosampler needle access
Suitable for headspace analysis