| SPEC：Sealed and polished cover, long service life and good sealing performance. The tongue groove is combined with an external seal to avoid O-ring and compatibility issues. Machined PTFE spring with low opening pressure. Provide various terminal configurations, including Parflare, to reduce connection and installation costs. |
| MATERIAL：Nut PFA, other parts are PTFE |
| Opening pressure: 0.25PSIG (0.17bar) -0.75PSIG (0.52bar) |
| Check valve sealing pressure: 5PSIG/0.35bar |
| Pressure range: 27 '' Hgvacuum (913mbar) -120PSIG (8.3bar) |
| Circulation medium：Fluid |
| STANDARD：SEMI F57 |
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