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An optional position feedback is available for manual Valco W type and Cheminert C2 and C4 series valves (standard on Cheminert C1 valves). The continuous contact closure, provided only while the valve is in the inject position, can remote start a chromatograph or data system.
| For valve type | Product No. | |
|---|---|---|
| Valco W | 4 port | PFW90 |
| 6 port | PFW60 | |
| 8 and 10 port | PFW36 | |
| Cheminert | C2 series, except 4 port | PFC2 |
| C2 series, 4 port | PFC4 | |
| C4 series | PFC4 | |