The RAF 683B pressure reducing & sustaining valve is line pressure hydraulically actuated, 3-W pilot.
The RAF 683B maintains a minimum upstream pressure, as set on the 3-W pressure sustaining pilot and a maximum downstream as set on the 3-W pressure reducing pilot, regardless of flow changes.
The 3-W pilots configuration together with Raphael’s patented diaphragm enable smooth and precise pressure control.
Maximal Nominal Pressure: 16 bar
Setting Range: 0.6 to 6 bar
