Crimp closure, N 20, alu.,pressure rel.,center hole,Butyl d.gray/PTFE gray,3.0mm
*taxes and shipping not included
Delivery time approx. 5 working days
Quantity | Price/unit |
---|---|
To 9 | $71.50 |
From 10 | $60.90 |
From 50 | $54.90 |
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).
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 |
Hazardous material | No |