When lever is to the left, valve is open. When lever is to the right, valve is closed

This Valve is naturally Closed,when vacuum is applied, Valve Opens.


 

This Valve is Naturally Open,when vacuum is applied It Closes. 5/8" Outlets

This Valve is naturally Open,when vacuum is applied, Valve Closes. The valve is naturally open allowing  heat to enter the vehicles heater core. 5/8" Inlet and Outlet


 

When lever is to the left, valve is closed. When lever is to the right, valve is open