Air valve location

Application Table

Location in System Vacuum Breakers Continuous/
Automatic Air Release Valves
Combination
Air Valves
Source
Pump stations
Upstream of pump check valves    
On filter inlet manifolds  
On filter back-flush manifolds  
System Head
At all high points  
Before water meters  
Distribution Network
At all high points  
Every 500 m    
At the top of downhill sloping pipes    
At the end of long distribution pipes    
Upstream of on/off field control valves    
Downstream of on/off field control valves    
       
Location in System Vacuum Breakers Continuous/
Automatic Air Release Valves
Combination
Air Valves
Source
Pump stations
Upstream of pump check valves    
On filter inlet manifolds  
On filter back-flush manifolds  
System Head
At all high points  
Before water meters  
Distribution Network
At all high points  
Every 500 m    
At the top of downhill sloping pipes    
At the end of long distribution pipes    
Upstream of on/off field control valves    
Downstream of on/off field control valves    
       

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