Silent Check Valves 250PSI/300PSI

        Introduction
        Usage:                The valve can be used to prevent the 
                              medium from adverse current in any 
                              pipeline system.
        Connection Ends:      Flange - ASME B16.1 
        Inspection Pressure:  250PSI:  Shell: 500PSI Seal: 250PSI
                              300PSI:  Shell: 600PSI Seal: 300PSI
        Surface:              Coating: Akzo Nobel Fusion Bonded 
                              Epoxy Coating with thickness 
                              150-500um, Complies with ANSI/AWWA 
                              C550
        Applications:         To prevent the medium regorging and 
                              diminish noises of potable water,	
                              water supply and drainage, sewage 
                              disposal, irrigation and fire 
                              protection pipe system etc.