Product Description
Keep long refluxes running safely with a high-capacity internal coil that returns vapors to the flask. Both water connections sit at the top, so tubing stays out of the way of heating mantles and clamps and the setup is simpler to arrange around crowded apparatus.
This listing is for Kimble catalog number 457000-0175: KONTES Coil-Type Reflux Condenser, 340 mm. An internal coil-type cold finger provides the cooling surface, with two hose connectors on top for coolant in and out. Most versions have an outer joint at the top and an inner drip joint at the bottom; 283000 has no drip joint. Sizes run from 200 to 390 mm in 14/20, 19/22 and 24/40, referenced in ASTM D94 and D95 methods. LIGHT LABS ships genuine DWK Life Sciences products with knowledgeable support from our Englewood, Colorado team.
Key Features
- Internal coil cold finger – Large cooling surface in a compact body.
- Top hose barbs – Both coolant connections are at the top.
- Drip joint – Lower inner drip joint returns condensate cleanly on most sizes.
- ASTM method reference – Referenced in ASTM D94 and D95.
- Range of sizes – 200 to 390 mm in three joint sizes.
Specifications
| Catalog Number | 457000-0175 |
| Brand | Kimble (DWK Life Sciences) |
| Description | KONTES Coil-Type Reflux Condenser, 340 mm |
| Sold As | Each |
| Glass | Borosilicate glass 3.3 (33 expansion), low extractable |
| Standards | USP Type I; ASTM E438, Type I, Class A |
| Joints | Standard taper outer top; inner drip joint bottom (except 283000) |
| Joint sizes | 14/20; 19/22; 24/40 |
| Cooling element | Internal coil-type cold finger |
| Method reference | ASTM D94; ASTM D95 |
Available Options
- 283000-0000 – KONTES Coil-Type Reflux Condenser, 200 mm
- 283010-0000 – KONTES Coil-Type Reflux Condenser, 225 mm
- 457000-0125 – KONTES Coil-Type Reflux Condenser, 290 mm
- 457000-0225 – KONTES Coil-Type Reflux Condenser, 390 mm
Applications
- Reflux reactions
- Saponification number testing per ASTM D94
- Water content by distillation per ASTM D95
- Organic synthesis
