Some valves can be equipped with a special valve, he led the cavitation logistics together with the steam bubble a away from the dangerous metal surface. Because the cavitation control valve does not need to be as clever design to prevent such high cavitation valve core, they generally lower cost and simpler in basic away.
In the logistics in the spool on the operation, with a special design of hole seat on the internal valve. When the spool valve seat closely with the self promotion, special guide seat hole is disclosed, and make the logistics through the valve seat through, in this case, the guide seat hole is directly facing each other, from a hole in the pockets of logistics impact on the faces of the logistics, so the cavitation in guide Center, at this point, only the metal surface from cavitation effects is the bottom of the valve core, making the parts available hardening material. Because the middle part of the bottom of the valve core is flat and does not need to shut down, it may be damaged in more than one cycle. Only when the valve sealing surface is damaged, only need to be replaced.
The cavitation control structure, can be designed into the flow characteristics of a wide range of CV and linear or percentage. Because the logistics must be located in the core, the failure -- open operation needs pressure balancing has been to prevent the instability to the seat.
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