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 in the same footprint, 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
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 Class 10 Cleanroom |
Leak tested using Mass spectrometer <1x10(-9) mbar.l/s |
Multiple cracking pressures |
| 316L stainless poppet and spring + seat |
Zero particles @0.1µm |
<10Ra micro-inch surface roughness |
Can be fully integrated into valve as end connection |
| Barstock-only source |
<10ppb O2/H20 outgassing |
Reverse flow and pressure tested 100% production control |
Multiple seat material options |
| FKM standard seat (minimal volume) |
Cleaned using 18.2MΩ·cm DI water |
375p.s.i. operating pressure |
0.25 Cv (flow coefficient) |