A keep ware, control member subassembly and control valve for control member of control valve
The utility model provides a keep ware, control member subassembly and control valve for the control member of control valve. The flow path rate regulator allows the control member of control valve to be close very much the seating ring operation, reduces or get rid of the fluid area of restriction...
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Format: | Patent |
Sprache: | eng |
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