| Description | Model/CAD | 
| Relay valve | VR4151,4152  | 
        
| Shuttle valve | VR1210,1220,VR1210F,VR1220F  | 
        
| AND valve | VR1211F  | 
        
| Time delay  valve  | 
            VR2110  | 
        
| Pneumatic  Indicator  | 
            VR3100,3110  | 
        
| Pneumatic-electric  relay  | 
            VR3200,3201  | 
        
| Features | 
            
  | 
        


