"TA" Bottle top dispensers
For aggressive reagents, for purity standards required in trace analysis
The "TA" dispenser is the dosing device of choice to meet the demanding purity standards required in trace analysis.
The high quality parts that come exclusively in contact with the medium and the specially developed and proven cleaning process to be done before use results in a reduced release of trace metal ions to the low ppb range, or, depending on the application, even the ppt range.
The parts that are in contact with media are made of various fluoroplastics (e.g. ETFE, FEP, PFA, PTFE), Al2O3-sapphire, platinum-iridium or tantalum (depending on model).
Applications
- Specially for use in trace analysis for dispensing high-purity and highly concentrated acids and alkalis, as well as hydrogen peroxide, bromine and HF
Components in contact with media
- Various fluoroplastics (e.g., ETFE, FEP, PFA, PTFE), Al2O3-sapphire, platinum-iridium or tantalum (depending on the model)
Operating limits
- Temperature: +15 °C to +40 °C
- Steam pressure: max. 600 mbar
- Viscosity: max. 500 mm2/s
- Density: max. 3.8 g/cm3
Features
- Thanks to the excellent chemical resistance of the materials used, the new dispenser can also be deployed with highly concentrated acids and bases, such as perchloric, sulphuric
and nitric acid
- Depending on the application, there is a choice of two different valve spring systems: the TA with tantalum spring is recommended for dosing of hydrogen peroxide (H2O2).
- For applications using sodium hydroxide (up to a max. concentration of 30%) or hydrogen fluoride (HF) the platinum-iridium spring is recommended
- In order to minimize the loss of valuable reagents or sample solutions, we offer the dispenser also with the optional recirculation valve
Included in delivery
- TA dispenser (screw thread GL 45) with adjustable variable volumes, DE-M marked, with quality certificate, telescopic filling tube, mounting tool, GL 28/S 28 (ETFE), GL 32 (ETFE),
and S 40 (PTFE) bottle adapters, and instruction manual
- Optionally with or without recirculation valve
To order
| Cat. No. |
Volume (ml) |
Valve spring |
Recirculation |
| VB/51627515 |
1.0 – 10.0 |
Platinum-iridium |
no |
| VB/51627525 |
1.0 – 10.0 |
Platinum-iridium |
yes |
| VB/51627535 |
1.0 – 10.0 |
Tantalum |
no |
| VB/51627545 |
1.0 – 10.0 |
Tantalum |
yes |