发明名称 |
PERFEZIONAMENTO NELLE VALVOLE A DISCO E PROCEDIMENTO PER LA LORO FABBRICAZIONE |
摘要 |
A disc-type valve assembly and method of making same. The assembly includes a valve body having a flowway with a disc-like valve element therein. A shaft has an inner portion directly rigidly connected to the valve element by a pre-stressed self-connection and an outer portion rotatably mounted in the valve body. A handle is directly rigidly connected to the outer portion of the shaft by a pre-stressed self-connection whereby the handle and shaft form a rotating body. A positioning sleeve is interposed in tight pre-stressed relation between the valve body and the rotating body for preventing relative rotation between the bodies under torque loads below a pre-determined magnitude, the positioning sleeve being yieldable under torque loads greater than or equal to that magnitude to permit such rotation. |
申请公布号 |
IT1103587(B) |
申请公布日期 |
1985.10.14 |
申请号 |
IT19780048462 |
申请日期 |
1978.03.16 |
申请人 |
KEYSTONE INTERNATIONAL INC SOC' DELLO STATO DEL TEXAS |
发明人 |
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分类号 |
F16K1/22;F16K1/226;F16K35/04;(IPC1-7):F16K/ |
主分类号 |
F16K1/22 |
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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