Part Number: 8.722-192.0
Cross Reference Part Number(s): 390100, 725786, 81-22550, 89043920, 8.904-392.0, G022550A, 87221920, 22550A
This valve is designed to relieve the system of higher than normal pressures. It is normally set at 15-20% above the normal operating pressure. Once the pressure falls below the set point, it will automatically re-set. It will operate in this manner for a limited number of times.