Sleeves with ribs, PTFE
For use with ground glass joints. Suitable for vacuums up to 0.1mbar. Reusable and long lasting. The sealing ribs grip on the inside wall of the glass socket, sealing without the need for grease and enabling the cone to be freed easily when required.
Sleeves, cone joint, PTFE
With knurled gripping ring at the top of the cone for easy removal. For gas, liquid and vacuum-tight cone joint connections with sizes as outlined below. Reusable. With reinforced external ribs for a high-vacuum tight seal (leakage rate: < 1x10-4mbar x I x s-1). No joint sealant or grease required.
Sleeves, PTFE, disposable
Seals without grease - no grease residues are left in the analysis. Excellent chemical resistance. Can be used in temperatures from -200 to 260 °C. Wall thickness only 0.05 mm. Wide range of applications, also suitable for vacuums down to 0.1 mbar, e.g. for rotary evaporators.
Stopcock grease, silicone-free
For lubricating burette stopcocksGood acid- and base-resistanceOperating temperature range -40 to 320 ºC