To what psi differential is the differential pressure control on the Type 4 emergency shut off valve adjusted?

The correct psi differential for the differential pressure control on the Type 4 emergency shut-off valve is 7 psi. This specific setting is essential as it dictates the valve's response to pressure changes within the system, ensuring it operates effectively during emergencies.

Adjusting the differential pressure control to 7 psi allows the valve to close or open based on the pressure fluctuations, thereby providing a critical safeguard against potential fuel system failures or leaks. This regulation is vital in maintaining the integrity of fuel systems, especially in environments where pressure levels can fluctuate rapidly.

Understanding the significance of this adjustment helps in the maintenance and operational procedures of water and fuel systems, highlighting the importance of precise specifications in ensuring safety and reliability.