Fine control stopcocks

The rotary needle valve design of these Rotaflo® General PurposePTFE stopcocks allows the fine single drop control of liquids.

  • Rotary design for fine single drop control; invaluable on burettes
  • Borosilicate glass with PTFE key for excellent chemical resistance
  • No lubrication required - no seizure and no contamination
  • Temperature range -20°C to 200°C
  • Vacuum capability to 10 Torr
  • Increased barrel diameter for excellent drainage
  • Locking ring to prevent accidental removal
  • Ergonomic key for good grip and easy operation

Product Specification

Grouped product items
Item Code Approx overall length mm Key bore mm Sidearm bore mm Sidearm OD mm Pack quantity
GP3ST/5 210 3.0 5 8 5
GP6ST/7 210 6.0 7 10 5
GP10ST/10 225 10.0 10 13 2

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