Electronic accelerator for automatic water control valves

An electronic accelerator, comprising:

• a pressure sensor coupled to a fluid supply line to detect a pressure in the fluid supply line, the fluid supply line disposed between a fluid supply and at least one sprinkler head;
• a first control valve coupled to a second control valve that when open permits fluid to flow from the fluid supply through the fluid supply line to the at least one sprinkler head;
• a control circuit to:
• receive an indication of the pressure detected by the pressure sensor;
• evaluate a trigger condition indicative of the at least one sprinkler head being open based on the pressure detected by the pressure sensor, the trigger condition is such that the first control valve is to open prior to the pressure in the fluid supply line being less than a fluid pressure in the fluid supply on an opposite side of the second control valve from the fluid supply line;
• and responsive to the trigger condition being satisfied, cause the first control valve to open to reduce a chamber pressure in a chamber of the second control valve to cause the second control valve to open to permit fluid to flow from the fluid supply through the fluid supply line to the at least one sprinkler head;
• and
• a housing in which the pressure sensor, the first control valve, and the control circuit are disposed, the housing comprising:
• an outlet coupled with the first control valve to couple the first control valve with the second control valve;
• a supply port to couple the pressure sensor to the fluid supply line between the second control valve and the at least one sprinkler head;
• and
• an atmosphere port coupled with the first control valve to couple the chamber of the second control valve to atmosphere responsive to the first control valve opening.