发明名称 |
Valve provided with a thermally-actuated mechanism for pressing valve seats against a valve gate body |
摘要 |
A valve for controlling the flow of fluids containing abrasive particles including thermally-actuated means for ensuring a tight seal between the movable valve element and the valve body in both the open and closed positions. The thermally-actuated means is deactivated when repositioning the movable valve element and reactivated to provide a tight seal when the movable valve element is in position.
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申请公布号 |
US4402337(A) |
申请公布日期 |
1983.09.06 |
申请号 |
US19810260508 |
申请日期 |
1981.05.04 |
申请人 |
SHELL OIL COMPANY |
发明人 |
SCHUURMAN, PIETER J. |
分类号 |
F16K3/20;(IPC1-7):F16K49/00;F16K3/02 |
主分类号 |
F16K3/20 |
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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