Type | cut-out Pressure Range | Minimum Differential | Maximum Differential | |
kg / cm2 | psi. | kg / cm2 | psi. | kg / cm2 | psi. |
PR – 4 PR – 4X PRV – 4X PRV – 4 | 1 – 4 | 14 – 58 | 0.6 – 0.7 | 8.5 – 10 | 4 | 57 | Without unloading valve & on/off knob. |
With on/off knob but without unloader valve. |
With on/off knob & unloader valve. |
With unloader valve but without on/off knob. |
PR – 9 PR – 9X PRV – 9X PRV – 9 | 2.5 – 9.5 | 35.5-135 | 1.2 – 1.8 | 17 – 26 | 7 | 100 | Without unloading valve & on/off knob. |
With on/off knob but without unloader valve. |
With on/off knob & unloader valve. |
With unloader valve but without on/off knob. |
PR – 15 PR – 15X PRV – 15X PRV – 15 | 7 – 15 | 100 – 213 | 1.7 – 2.3 | 24 – 33 | 7 | 100 | Without unloading valve & on/off knob. |
With on/off knob but without unloader valve. |
with on/off knob & unloader valve. |
with unloader valve but without on/off knob. |