The load sense system is the least used and the least understood system of the three, but offers perhaps the most potential for efficient use of energy.
The load sense system is also controlled by pressure like the constant pressure system, but not in direct proportion, which usually results in greater system efficiency.
The load sense system has a control pressure of 200 psi.
2 shows, the load sense system is 50% efficient at a very low pressure of 200 psi, regardless of the flow usage rate.
This gives the load sense system a significant efficiency advantage over the constant flow system, especially in higher-pressure and low-to medium-flow situations.
3 indicates, the load sense system provides better efficiency than the constant pressure system at all pressures up to 3800 psi.
At low-pressure standby, a load sense system is at control pressure.