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PTFE sealing rings for jointed glassware

An effective alternative to common PTFE joint sleeves and PTFE stoppers.
  • Air leakage <10-8 to 10-6 mBar l/s (vacuum and pressure)
  • Solvent leakage from containers < 0.1 to 0.03mg/day
  • Temperature range: -196 to 300°C
Temperature resistance:-196 ... 300 °C
PTFE sealing rings for jointed glassware


PTFE sealing rings for jointed glassware
 Ground sizeMaterialPK
NS10Prod.No.9.011 663PTFE50
 NS12Prod.No.7.622 596PTFE50
 NS14Prod.No.9.011 664PTFE50
NS19Prod.No.9.011 665PTFE50
NS24Prod.No.9.011 666PTFE50
NS29Prod.No.9.011 667PTFE50
 NS34Prod.No.7.700 004PTFE50
NS45Prod.No.9.011 668PTFE50
Suitable for:
Adapter for thermometer, borosilicate glass 3.3ISOLAB Laborgeräte GmbH
Air condensers without jacket, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Ball members, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Coil condensers, DURAN® tubing, with glass olivesLenz-Laborglas GmbH & Co. KG
Coil condensers, DURAN® tubing, with plastic olivesLenz-Laborglas GmbH & Co. KG
Columns acc. to Hempel, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Condensers acc. to Allihn for extractors, DURAN® tubing, with plastic olivesLenz-Laborglas GmbH & Co. KG
Condensers acc. to Allihn for extractors, DURAN® tubing, with glass olivesLenz-Laborglas GmbH & Co. KG
Condensers acc. to Allihn with GL threads, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Condensers acc. to Dimroth for extractors, with PP olives, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Condensers acc. to Dimroth, with GL threads, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Condensers acc. to Liebig, DURAN® tubing, with glass olivesLenz-Laborglas GmbH & Co. KG
Condensers acc. to Liebig, DURAN® tubing, with plastic olivesLenz-Laborglas GmbH & Co. KG
Condensers, ground glass joint, Allihn, borosilicate glass 3.3ISOLAB Laborgeräte GmbH
Condensers, ground glass joint, Dimroth, borosilicate glass 3.3, PP-oliveISOLAB Laborgeräte GmbH
Condensers, ground glass joint, Liebig, borosilicate glass 3.3, with PP olivesISOLAB Laborgeräte GmbH
Condensers, ground glass joint, Liebig, borosilicate glass 3.3, with glass olivesISOLAB Laborgeräte GmbH
Cones with NS joint, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Delivery adapters, bent, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Distilling heads acc. to Claisen, sloping, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Distilling heads, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Distilling link, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Distilling links acc. to Claisen with vacuum receiver adapter, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Distilling links acc. to Claisen, with olive, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Distilling links with Liebig condenser and vacuum receiver adapter, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Dropping funnels, cylindrical, with pressure equalizing tube, borosilicate glass 3.3, with glass keyLenz-Laborglas GmbH & Co. KG
Dropping funnels, cylindrical, with pressure equalizing tube, borosilicate glass 3.3, with PTFE keyLenz-Laborglas GmbH & Co. KG
Dropping funnels, cylindrical, with pressure equalizing tube, Borosilicate glass 3.3ISOLAB Laborgeräte GmbH
Dropping funnels, cylindrical, without pressure equalizing tube, Borosilicate glass 3.3ISOLAB Laborgeräte GmbH
Drying tubes, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Drying tubes, U-shaped, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Drying tubes, U-shaped, DURAN® tubing, with interchangeable ground joint stopcocksLenz-Laborglas GmbH & Co. KG
Expansion adapters, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Gas inlet tubes, bent, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Multiple adapter, 2-neck, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Multiple Adapters, 2 necks, borosilicate glass 3.3ISOLAB Laborgeräte GmbH
Receiver adapters, with olives, DURAN® tubing, bent 105°Lenz-Laborglas GmbH & Co. KG
Receiver adapters, with olives, DURAN® tubing, straightLenz-Laborglas GmbH & Co. KG
Socket members, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Sockets with NS joint, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Soxhlet extractors, without stopcockISOLAB Laborgeräte GmbH
Spiral condensers, borosilicate glass 3.3, with glass oliveISOLAB Laborgeräte GmbH
Spiral condensers, borosilicate glass 3.3, with PP oliveISOLAB Laborgeräte GmbH
Spiral condensers, DURAN® tubing, with glass olivesLenz-Laborglas GmbH & Co. KG
Spiral condensers, DURAN® tubing, with PP olivesLenz-Laborglas GmbH & Co. KG
Splash head adapter, borosilicate glass 3.3, straightISOLAB Laborgeräte GmbH
Splash heads acc. to Stutzer, bent, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Splash heads acc. to Stutzer, straight, DURAN® tubingLenz-Laborglas GmbH & Co. KG
Threaded tube with NS core, DURAN® tubingLenz-Laborglas GmbH & Co. KG