DURAN® Single-way Stopcock, with PTFE key

  • Manufactured from borosilicate glass 3.3 and PTFE
  • Polished shut-off valve sleeve with PTFE valve plug for grease-free operation
  • The 3-part tap safety catch secures the tap plug in the tap sleeve.
  • With retaining device
  • Taper 1:10
  • Glass articles for further processing