发明名称 |
Needle valve assembly |
摘要 |
A low flow needle valve assembly is described having a non-metallic valve stem guide and a cross-flow system such that fluid flow occurs over only metallic metering surfaces. The valve assembly is particularly advantageous in view of its low cost and its smooth, non-reversing flow characteristics which result in precise control of extremely low fluid flow rates.
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申请公布号 |
US4019534(A) |
申请公布日期 |
1977.04.26 |
申请号 |
US19750619748 |
申请日期 |
1975.10.06 |
申请人 |
WILL ROSS, INC. |
发明人 |
CLEMENTS, THOMAS W.;WATERS, E. CRAIG |
分类号 |
F16K1/52;F16K3/32;F16K31/50;(IPC1-7):F16K1/52 |
主分类号 |
F16K1/52 |
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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