Part Number: 8.722-193.0
OEM / Old Part Number(s): 725787, 81-22560, G022560A, 87221930, 22560A
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.