Emerson Daniel 770 User Manual page 19

the amount of pump discharge pressure either applied to the top of the valve piston or
bypassed through the pilot to the downstream side of the valve. The valve will throttle
closed if pump differential pressure drops below the pilot setting.
Figure 1-7:
Figure 1-8:
User Manual
Maintain minimum pump differential
Differential pressure control (LNG, NH
3
)
Introduction
9