Solenoid Vacuum Valve Assembly
Normally Closed
The normally closed solenoid valve assembly, Figure 1 consists of two vacuum ports with an atmospheric vent. The valve assembly can be with or without control bleed. The outlet port of the valve is opened to atmospheric vent and closed to the inlet port when de-energized When energized, the outlet port is opened to the inlet port and closed to atmospheric vent. The control bleed is provided to prevent contamination entering the solenoid valve assembly from intake manifold. This solenoid valve assembly is used on Throttle Kicker, Air Dump, Air Diverter Control Systems and Exhaust Heat Control Valve Systems.
Normally Open and Normally Closed
The solenoid valves operate independently and each controls different devices. They are, however, mounted on a single bracket.
The valves, Figure 2 are used for Thermactor Air Bypass and Thermactor Diverter.
The one-port, normally open and the two-port normally closed solenoid valve assembly, Figure 3 is used for choke pull-down and A/C throttle kicker.