Cooling finger S29-A / SL29-A
Application
Advantages
Executions
Simple cold traps, also known as cold fingers, are for standard applications in conjunction with vacuum pumps. Moisture or solvents are condensed out in the chemical application area. The cold trap is used to protect the vacuum pump. The special feature of this design is that the user does not need a tripod to hold the cold trap. The cold trap has a bead with which it is hooked into the support ring of the Dewar flask. The cold trap can therefore be changed quickly and easily. LN2 or CO2 is used for cooling. The coolant should be at least 50°C colder than the condensation temperature of the substance.
Type S 29 GL-A
Short version S29-A
Type S 29-K-A
Type S 29-O-A
Type S 29-GL-A
Type S 29-NW16-A / NW25-A
Technical data short version
| Type | Cooling fingers theoretically. Vol. [ml] | Condensate theoretical. Vol. [ml] | Coolant for Dewar | Connection type | Article No. |
|---|---|---|---|---|---|
| S 29-K-A | 150 | 1000 | 12C | Spherical ground joint S29 | 17375 |
| S 29-OK-A | 150 | 1000 | 12C | Spherical ground joint S29 with O-ring seal | 17376 |
| S 29-GL-A | 150 | 1000 | 12C | Glass thread GL18 with olive | 17377 |
| S 29-NW16-A | 150 | 1000 | 12C | Vacuum flange KF-NW16 | 17375-NW16 |
| S 29-NW25-A | 150 | 1000 | 12C | Vacuum flange KF-NW 25 | 17375-NW 25 |
Long version SL29-A
Type S 29-K-A
Type S 29-O-A
Type S 29-GL-A
Type S 29-NW16-A / NW25-A
Technical data long version
| Type | Cooling fingers theoretically. Vol. [ml] | Condensate theoretical. Vol. [ml] | Coolant for Dewar | Connection type | Article No. |
|---|---|---|---|---|---|
| SL 29-K-A | 250 | 2000 | 18C | Spherical ground joint S29 | 17385 |
| SL 29-OK-A | 250 | 2000 | 18C | Spherical ground joint S29 with O-ring seal | 17386 |
| SL 29-GL-A | 250 | 2000 | 18C | Glass thread GL18 with olive | 17387 |
| SL 29-NW16 -A | 250 | 2000 | 18C | Vacuum flange KF-NW 16 | 17385-NW16 |
| SL 29-NW25-A | 250 | 2000 | 18C | Vacuum flange KF-NW 25 | 17385-NW 25 |
Accessories
| Designation | Article no. |
|---|---|
| CO2 grid | 17570 |
| Plastic ring | 1733 |
| GL 18 Olive | 17331 |
| Cable clamp S29 | 17341 |
| Pertinax screw connection KF 10/16 | 17315 |
| Pertinax screw connection KF 20/25 | 17316 |
| Centering and O-ring KF 10/16 | 17320 |
| Centering and O-ring KF 20/25 | 17321 |
Technical data sheet
Download cold trap catalog
Cold trap catalog as PDF file: Download cold trap catalog