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经营范围
发明名称
Plug valve
摘要
A plug valve is provided with a stem seal wherein a generally frustoconical face is provided at the juncture of stem and plug and the seal is fixed against the frustoconical face with a predetermined constant load.
申请公布号
US4535803(A)
申请公布日期
1985.08.20
申请号
US19840590947
申请日期
1984.03.19
申请人
THE DOW CHEMICAL COMPANY
发明人
PRICE, ROBERT W.
分类号
F16K5/02;(IPC1-7):F16K27/00
主分类号
F16K5/02
代理机构
代理人
主权项
地址
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