发明名称 |
STEPPER MOTOR OPERATED BALANCED FLOW CONTROL VALVE |
摘要 |
A flow control valve includes a body having a body bore oriented coaxially with a longitudinal axis of the body and a seat member extending into the bore. A valve member is slidably disposed in the bore and oriented coaxially with the longitudinal axis of the body. The valve member includes a non-circular geometrically shaped head having a bore. A drive adapter includes a head receiving cavity slidingly receiving the geometrically shaped head of the valve member and preventing axial rotation of the valve member. A stepper motor is connected to the drive adapter, the stepper motor incrementally rotating a shaft engaged with the bore of the valve member. First and second equal diameter pistons of the valve member provide pressure balanced valve member operating positions. |
申请公布号 |
HK1185136(A1) |
申请公布日期 |
2016.07.29 |
申请号 |
HK20130112382 |
申请日期 |
2013.11.04 |
申请人 |
MAC VALVES INC. |
发明人 |
YAHR, Paul A.;WILLIAMS, Kevin C. |
分类号 |
F16K |
主分类号 |
F16K |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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