Crimp closure, N 20, alu.,pressure rel.,center hole,Butyl d.gray/PTFE gray,3.0mm

$71.50 * $0.00 * (0% Saved)

*taxes and shipping not included

Delivery time approx. 5 working days

702071 02301023501020
Package unit 100 Piece(s)
Price overview
Quantity Price/unit
To 9 $71.50
From 10 $60.90
From 50 $54.90
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These closures with molded Butyl/PTFE septa are only laminated with PTFE in the contact area... more

These closures with molded Butyl/PTFE septa are only laminated with PTFE in the contact area with the sample. Thus the elastomeric Butyl 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. These typically called "Pharma-Fix" closures have a good analytical purity. The bridges of the cap's scorelines break open at an internal vial pressure exceeding 3 bars (± 0.5 bars), thus releasing overpressure in a crontrolled way. Functionality of the cap is not depending on the design of the vial's crimp neck (beveled top, flat crimp neck).

Hazardous material No
Closure type Crimp closure
Nominal diameter N 20
Assembling process Assembled
Cap material Aluminum
Cap color Silver
Cap hole Yes
Closure magnetic No
Septa material Butyl/PTFE (high purity), Butyl/PTFE (Pharma-Fix)
Colors of septa material Dark gray/gray
Septa thickness 3.0 mm
Septa hardness 50° shore A
Additional cap features Pressure release cap (safety) - bridges of the scorelines open at a pressure of more than 3 bars (± 0.5 bars) and release pressure in a controlled way
Additional closure features Molded septum, only centrically laminated with PTFE, typically called Pharma-Fix, excellent sealing, temp. resistant from -40 °C up to 120 °C
Recommended application(s) Headspace
Autosampler compatibility Agilent, PerkinElmer
Storage temperature RT
Scope of delivery 100x N 20 ready assembled crimp closures