It protects your water system by releasing pressure surges in water network elevation lines to atmosphere quickly, which are caused by sudden changes in water speed.
        
        
        
        
            Operation in wide pressure range (PN10)
                 
        
            Perfect modulation even in lower flow rates
         
        
            Anti-surge closing and opening with flexible diaphragm
         
        
            Glass Reinforced Poly-amide material