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- General laboratory consumables
- Occupational safety, Security
- Analytical measurement and testing
- Stirring, Shaking, Mixing
- Sample preparation
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Distillation, separation, filtration
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Distillation, synthesis
- Flasks with NS joint neck
- Components for reaction and distillation
- Flat ground flange reaction vessels
- KPG stirrer and bearings
- Dropping Funnels
- Reflux condenser
- Distillation-Accessories
- Components for Extraction
- Gas wash bottles
- Tubing adapters
- standard ground stoppers
- NS joints accessories
- Ground joints, attachable
- Stopcocks and Valves
- Laboratory reactors
- Rotary evaporators
- Separating, centrifuging
- Filtration
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Distillation, synthesis
- Heating and cooling technology
- Liquid Handling
- Vacuum technology, Drying, Dry storage
- Optical instruments and Microscopes
- Cleaning and sterilisation
- Environmental-, soil-, water-, food analysis
- Chromatography
- Cleanroom
Stopcocks and Valves
Needle-valve stopcocks, DURAN® tubing
Made of DURAN ® tubing. Smooth PTFE plug spindle, with retention device to avoid accidental dismantling. PP screw cap and retention device. Operating temperature -20°C to 150°C. Needle-valve stopcocks can be used for accurate dispensing and fit perfectly to glass apparatus....
Safety / overpressure valves, with spring loaded spherical ground joint seal
When laboratory ground devices are used under vacuum or/and slight overpressure, the use of this combined overpressure safety valve can be recommended. These valves act as immediately closing safety valve under vacuum and they allow under overpressure the visual control of the bubble formation in the blocking liquid. The real sealing is effected by a special designed spherical ground joint (cup and ball) on which an adjustable spring power acts. It is supported by a free to chose blocking liquid which should be higher viscous for vacuum operations. The sealed climbing tube at the spherical ground cup serves as a guide and prevents that the liquid climbs back into the apparatus....
