Crimp closure, N 20, alu. blue/tin, center hole,Sil. white/Polyimide orange, 3mm 702404

N 20 bimetal crimp cap, blue/silver, center hole Silicone white/Polyimide orange Hardness: 50° shore A Thickness: 3 mm pack of 100
SKU: 702404
Manufacturer: Machery Nagel

 

Bi-metal crimp closures support transportation of the vial via magnet, as for e.g. in the CTC Combi PAL, the Shimadzu AOC 5000/6000 or the Gerstel autosampler. They are generally more difficult to crimp/decap which is why Headspace screw neck vials N 18 may be a more convenient alternative. We recommend Silicone/PTFE septa as the optimal choice for Headspace, as they offer a temperature resistance form -60 °C up to 200 °C, highest analytical purity and excellent penetration properties. These closures with a molded, high purity Silicone/PTFE septa are only laminated with PTFE in the contact area with the sample. Thus the elastomeric Silicone can achieve on the vial's glass rims a very tight seal, while in comparison a completely PTFE covered septum would have a very slippery surface on the glass and could easily be twisted around. Septa are assembled, caps are ready-to-use. Septa are shown for illustration purposes only, images upside down.

Hazardous materialNo
Closure typeCrimp closure
Nominal diameterN 20
Assembling processAssembled
Cap materialAluminum/tin
Cap colorBlue/silver
Cap holeYes
Closure magneticYes
Septa materialSilicone/PTFE
Colors of septa materialBlue transparent/colorless
Septa thickness3.0 mm
Septa hardness45° shore A
Additional closure featuresTemp. resistance -60 °C up to 200 °C / analytical purity - high / soft to penetrate / medium resealability / excellent sealing properties due to Pharma-Fix design of molded septum
Recommended application(s)Headspace
Autosampler compatibilityShimadzu AOC 5000
Storage temperatureRT
Scope of delivery100 x N 20 ready assembled crimp closures

 

Attribute nameAttribute value
Diameter20mm
ColourBlue
WithPTFE/SiliconeLined