2048 Series
Ultra-High Purity Check Valves
The 2048 check valve series allows the replacement of standard semiconductor fittings with our unique valve, allowing non-return functionality and without the need for sealing gaskets.
Key Features
Available in 1/4” line sizes
Metal-to-metal external seals
No VCR gaskets required to seal at the check valve male side
Low cracking pressure to open
Typical Applications
Gas cabinet process lines, reactor gas line protection, isolation and reverse flow prevention functionality for gas mixing panels, gas mixing systems, valve manifold boxes (VMB’s), and critical application containment functionality.
Key Specifications
| Materials of Construction | Cleanliness | Specifications | Options |
|---|---|---|---|
| 316L stainless body |
Manufactured in ISO Class 4 Cleanroom |
100 % Leak tested using Mass spectrometer <1×10⁻⁹ scc/s under vacuum at 250 PSI Max |
Multiple cracking pressures |
| 316 stainless poppet and spring + seat |
Zero particles @0.1µm in static conditions |
Design pressure up to 3500 PSI Max vacuum |
Can be fully integrated into valve as end connection |
| Barstock-only source |
<10ppb O2/H20 outgassing |
<10Ra micro-inch surface roughness |
Multiple seat material options |
| FKM standard seat (minimal volume) |
Cleaned using DI water & oven baked |
0.25 Cv (flow coefficient) at full flow |