Headspace screw vials

Common headspace screw caps are made from metal. Screwing metal on glass, however, causes  much friction. Our screw caps are made from glass-fibre enforced polyamide. They screw smoothly onto our matching headspace vials and require a torque of < 1 Nm only for a pressure-tight seal (common > 8 Nm).

The glass-fibre enforced polyamide screw cap has a magnetic steel ring inserted to allow the use on headspace samplers with magnetic arm.

Design Registration No.: DE 20 2007 008 595.8; Priority Date: 15. June 2007

 

The advantages:

  • pressure-tight seal without strenuous crimping
  • cap screws on smoothly as it is made from glass-fibre enforced polyamide
  • screw cap may be screwed on manually or mechanically (using 19 hex-nut)
  • can be used to a max. of 150° C

 

The following septum material is available:

  • Silicone/PTFE - thickness 3.0 mm - temperature limit 150° C - 40 ± 5° Shore A - clear/white (SKFW)
  • Silicone/PTFE - thickness 3.0 mm - temperature limit 150° C - 40 ± 5° Shore A - white/red (SWFR)
  • Silicone/PTFE - thickness 3.0 mm - temperature limit 150° C - 40 ± 5° Shore A - blue/grey (SBFZ)
  • Silicone/PTFE - thickness 1.6 mm - temperature limit 125° C - 40 ± 5° Shore A - white/red (SWFR)
  • Butyl/PTFE      - thickness 3.0 mm - temperature limit 125° C - 50 ± 5° Shore A - grey/grey (BZFZ)
Material
Volume
Septum
material thickness
GHS6*-20R-BZFZ31-D

GHS6*-20R-BZFZ31-D

Screw vial, borosilicate glass, rounded base, with magnetic screw cap made from glassfibre enforced polyamide and butylrubber/PTFE septum, grey
Bottle type
Screw top Vial
Closure size
Pressure tight
Material
Amber glass
Volume
20 ml
Diameter
23 mm
Height in mm
73 mm
material thickness
3 mm
GHS6*-20R-BZFZ31-H

GHS6*-20R-BZFZ31-H

Screw vial, borosilicate glass, rounded base, with magnetic screw cap made from glassfibre enforced polyamide and butylrubber/PTFE septum, grey
Bottle type
Screw top Vial
Closure size
Pressure tight
Material
Clear glass
Volume
20 ml
Diameter
23 mm
Height in mm
73 mm
material thickness
3 mm
GHS6*-20R-SBFZ31-D

GHS6*-20R-SBFZ31-D

Screw vial, borosilicate glass, rounded base, with magnetic screw cap made from glassfibre enforced polyamide and silicone/PTFE septum, blue/grey
Bottle type
Screw top Vial
Closure size
Pressure tight
Material
Amber glass
Volume
20 ml
Diameter
23 mm
Height in mm
73 mm
material thickness
3 mm
GHS6*-20R-SBFZ31-H

GHS6*-20R-SBFZ31-H

Screw vial, borosilicate glass, rounded base, with magnetic screw cap made from glassfibre enforced polyamide and silicone/PTFE septum, blue/grey
Bottle type
Screw top Vial
Closure size
Pressure tight
Material
Clear glass
Volume
20 ml
Diameter
23 mm
Height in mm
73 mm
material thickness
3 mm
GHS6*-20R-SKFW32-D

GHS6*-20R-SKFW32-D

Screw vial, borosilicate glass, rounded base, with magnetic screw cap made from glassfibre enforced polyamide and silicone/PTFE septum, clear/white
Bottle type
Screw top Vial
Closure size
Pressure tight
Material
Amber glass
Volume
20 ml
Diameter
23 mm
Height in mm
73 mm
material thickness
3 mm
GHS6*-20R-SKFW32-H

GHS6*-20R-SKFW32-H

Screw vial, borosilicate glass, rounded base, with magnetic screw cap made from glassfibre enforced polyamide and silicone/PTFE septum, clear/white
Bottle type
Screw top Vial
Closure size
Pressure tight
Material
Clear glass
Volume
20 ml
Diameter
23 mm
Height in mm
73 mm
material thickness
3 mm
GHS6*-20R-SWFR16-D

GHS6*-20R-SWFR16-D

Screw vial, borosilicate glass, rounded base, with magnetic screw cap made from glassfibre enforced polyamide and silicone/PTFE septum, white/red
Bottle type
Screw top Vial
Closure size
Pressure tight
Material
Amber glass
Volume
20 ml
Diameter
23 mm
Height in mm
73 mm
material thickness
1.6 mm

GHS6*-20R-SWFR16-H

Screw vial, borosilicate glass, rounded base, with magnetic screw cap made from glassfibre enforced polyamide and silicone/PTFE septum, white/red
Bottle type
Screw top Vial
Closure size
Pressure tight
Material
Clear glass
Volume
20 ml
Diameter
23 mm
Height in mm
73 mm
material thickness
1.6 mm
GHS6*-20R-SWFR31-D

GHS6*-20R-SWFR31-D

Screw vial, borosilicate glass, rounded base, with magnetic screw cap made from glassfibre enforced polyamide and silicone/PTFE septum, white/red
Bottle type
Screw top Vial
Closure size
Pressure tight
Material
Amber glass
Volume
20 ml
Diameter
23 mm
Height in mm
73 mm
material thickness
3 mm
GHS6*-20R-SWFR31-H

GHS6*-20R-SWFR31-H

Screw vial, borosilicate glass, rounded base, with magnetic screw cap made from glassfibre enforced polyamide and silicone/PTFE septum, white/red
Bottle type
Screw top Vial
Closure size
Pressure tight
Material
Clear glass
Volume
20 ml
Diameter
23 mm
Height in mm
73 mm
material thickness
3 mm
GHS6*-10R-BZFZ31-D

GHS6*-10R-BZFZ31-D

Screw vial, borosilicate glass, rounded base, with magnetic screw cap made from glassfibre enforced polyamide and butylrubber/PTFE septum, grey
Bottle type
Screw top Vial
Closure size
Pressure tight
Material
Amber glass
Volume
10 ml
Diameter
23 mm
Height in mm
43 mm
material thickness
3 mm
GHS6*-10R-BZFZ31-H

GHS6*-10R-BZFZ31-H

Screw vial, borosilicate glass, rounded base, with magnetic screw cap made from glassfibre enforced polyamide and butylrubber/PTFE septum, grey
Bottle type
Screw top Vial
Closure size
Pressure tight
Material
Clear glass
Volume
10 ml
Diameter
23 mm
Height in mm
43 mm
material thickness
3 mm