发明名称 |
HIGH-PRESSURE PLUG VALVE WITH REPLACEABLE INSERTS AND METHODOF REFURBISHING SAME |
摘要 |
A plug valve has a valve body, a cage fitted within the valve body and a rotatable plug housed within a cylindrical cavity in the cage, for controlling fluid flow through the valve. The cage has first and second opposed flat side surfaces, each side surface has a port for receiving a replaceable flow-path insert in a fluid-tight seal. In one embodiment, the plug also includes at least one inset seal for sealing the at least one of the ports when the plug is in a closed position to inhibit leakage through the valve at low fluid pressures.
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申请公布号 |
CA2476813(A1) |
申请公布日期 |
2006.02.06 |
申请号 |
CA20042476813 |
申请日期 |
2004.08.06 |
申请人 |
MCGUIRE, BOB;DALLAS, L. MURRAY |
发明人 |
MCGUIRE, BOB;DALLAS, L. MURRAY |
分类号 |
F16K5/04 |
主分类号 |
F16K5/04 |
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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