Cap Options for Sorbent Tubes

Camsco® offers a variety of cap options to fit your specific application and needs.

The functionality of the caps

Compression caps are used for storage, both before and after sampling
- All compression caps come with Camsco’s universal PTFE ferrules
- All pre-conditioned tubes should be shipped with compression caps
- At Camsco, we numerically torque the compression caps to optimal tightness
- For passive sampling, Camsco’s PTFE compression caps are 75% lighter than the equivalent brass caps
Analytical caps are used for analysis and storage
- Analytical caps will work with the robotic arms that de-cap and re-cap tubes in ATDs
- For long-term storage, compression caps are better than analytical caps
- Micro caps are used for short-term transportation/protection

Other than the caps designed for 1/4” OD ATD tubes, caps are also available for other tubes:

Camsco’s PTFE Compression Caps have the following advantages compared to brass/steel Swagelok Caps:

end cap options for thermal desorption tubes


	CAPS
ATD Tubes	Compression Caps	Analytical Caps	Micro Caps	Passive Sampling Caps
Stainless Steel ATD Tubes	PTFE Brass Steel	PTFE Brass	PTFE	Aluminum
Coated Stainless Steel ATD Tubes	PTFE Brass Steel	PTFE Brass	PTFE	Aluminum
Glass ATD Tubes	PTFE Brass Steel	Brass	PTFE	N/A


	Tube End Caps	Part Number ¼”
	PTFE Analytical Cap (For Use with TurboMatrix)	PTFE60
	Brass Analytical Cap (For use with TurboMatrix)	BS60
	PTFE Compression Cap (CAMSCO)	PCC60
	Diffusive End Cap	DC60
	Brass Compression Cap (Swagelok)	BSC60
	Stainless Steel Compression Cap (Swagelok)	SSC60