Figures 1 and 2 show high-capacity pressure-reducing valves
- Direct-acting, pressure-reducing valve: PR**
- Direct-acting, sequence valve: SC**
- Normally closed logic element: LR*C
- 2/2 way directional valve: DRAY
- Needle valve NF**
Benefits of this circuit arrangement:
- Fig.1 uses a high-capacity LR** logic valve as a main stage. When PR** senses a pressure P below its setting, it opens. The flow will cause a pressure differential across the needle valve N. This opens the logic LR** until pressure equals the setting of PR**.
