The classification of the water inlet pneumatic valve automatically

hydrating pneumatic valve with check function ( 。 /。 ） And without check function ( 。 ） Two to choose from, the difference is that with the check function can prevent the system from the water back, but not with the function of the check if repairs the end there is no water or pressure is lower than the system pressure, will back out of the water system, water inlet pneumatic valve at the time of design has been considered these problems, under the automatic filling water pneumatic valve handwheel to black by the function of the pneumatic valve, even without the check function of automatic filling water pneumatic valve if the handwheel twisted toward the direction of the 'C' to twist, can return at this time of the system of water, of which the 'C' on the handwheel is close (in English Closed) Abbreviations, Auto (' A 'is English Automatic) The abbreviations.