| 摘要 |
<p>The head comprises a plurality of valves arranged radially in a cylindrical mixing chamber which is traversed by a rod closing off the outlets of said valves which supply a flow which can be adjusted. One of the valves is the master valve, being connected to the hydraulic cylinder by means of a valve which has three ways (a three-way valve) which emerge, respectively, in the cylinder, in the master-valve-supply conduit and in the tank of the corresponding liquid (discharge). Each of the valves regulates the flow of one of the liquids to be mixed, which liquid is impelled by the corresponding pump body. The inlet circuit of all the valves, except for the master valve, consists of a pressure-compensation chamber.</p> |
