Product Description
Control flow reliably on custom apparatus with a stopcock designed to turn smoothly even when warm. Its more exaggerated taper keeps the PTFE plug from binding at above-ambient temperatures, a common problem with conventional stopcocks. PTFE plugs need no grease, avoiding contamination.
This listing is for Kimble catalog number 821000-0002: Straight-Bore Stopcock, with PTFE Plug, bore size 2 mm. The stopcock body is borosilicate glass 3.3 with a 1:5 taper PTFE plug and a threaded pressure nut. The family covers bore sizes of 2, 4 and 6 mm with stem ODs of 8, 10 and 13 mm; the item listed here has a 2 mm bore. It is suitable for glassblowers building or repairing apparatus. Order it from LIGHT LABS and keep your lab stocked with genuine DWK Life Sciences products.
Key Features
- 1:5 taper – Easier turning at higher-than-ambient temperatures.
- PTFE plug – No grease needed, chemically inert.
- Threaded pressure nut – Adjusts plug tension.
- Borosilicate glass 3.3 – Seals to standard laboratory glass.
Specifications
| Catalog Number | 821000-0002 |
| Brand | Kimble (DWK Life Sciences) |
| Description | Straight-Bore Stopcock, with PTFE Plug, bore size 2 mm |
| Sold As | Each |
| Glass | Borosilicate glass 3.3 |
| Plug material | PTFE |
| Taper | 1:5 |
| Bore | Straight |
Applications
- Custom apparatus fabrication
- Glassware repair
- Flow control in manifolds
- Heated lines
