General Glassware DURAN® Stopcock, with PTFE Spindle, for threaded outlets (GL 32)


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  • Manufactured from borosilicate glass 3.3
  • Small grinding opening of the spindle valve allows a slow inflow of gases or air and thus prevents excessive turbulence
  • Tight closure due to standard ground joint
  • For threaded outlets of MOBILEX type desiccator (GL 32)
  • With PTFE spindle

Product Overview

The PTFE spindle valve is used for airtight sealing of a desiccator. For this purpose, the spindle tap is connected to the standard ground joint of the desiccator cover. The very small, punctual opening in the lower part of the spindle valve allows a slow inflow of gases or air when the valve is opened, thus reducing a strong turbulence inside the desiccator.


Length l (mm) =160
Boro 3.3= Borosilicate glass 3.3 has a very good chemical resistance, virtual inert behavior, a high maximum usage temperature, high light transparency and minimal thermal expansion. Borosilicate glass 3.3 has a linear coefficient of expansion of 3.3 × 10−6 K−1 at 20 °C. It also conforms to the requirements of a USP/EP/JP Type 1 neutral glass suitable for use by the pharmaceutical industry. The properties of DURAN® are specified to ISO 3585 and ASTM-E438 Type 1 Class A.
Diameter d (mm)= 8
Diameter (mm)= 8
Material BORO 3.3,= PTFE
Length (mm)= 160
Autoclavable= Yes
Quantity= 1

Available Options

2479703Stopcock with PTFE Spindle for MOBILEXRM303.00