Three way high vacuum stopcocks

These three way high vacuum stopcocks utilise two Rotaflo® High Performance stopcocks with either 3mm or 6mm bore keys.

  • Rotaflo® High Performance vacuum stopcocks providing many significant benefits to the user:
  • Borosilicate glass with PTFE key for excellent chemical resistance
  • No lubrication required - no seizure and no contamination
  • Temperature range from -20°C to 200°C
  • Operates over a pressure range of +1bar to 10-9 Torr
  • Individually tested by mass spectrometer and supplied with certificate for guaranteed performance
  • Locking ring to prevent accidental removal of the key
  • Fully interchangeable keys
  • Ergonomic key for good grip and easy operation

Product Specification

Grouped product items
Item Code Approx overall length mm Key bore mm Sidearm OD mm Sidearm bore mm Pack quantity
HP3TW/5 215 3.0 8 5 1
HP6TW/7 220 6.0 10 7 1

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