发明名称 |
Outside seal and yoke valve |
摘要 |
A valve of the outside seal and yoke variety is provided, with a seal between a bonnet base and a valve body being axially spaced between a valve seating member and mating threads on the valve body and bonnet base. An end of at least one packing bolt is positioned within a cavity formed within the valve body, and prevents the bonnet base from unthreading from the valve body. A yoke threaded to the valve stem is rigidly secured to the bonnet base by a pair of yoke bolts and intermediate supports, and prevents inadvertent rotation of the packing bolts. The assembly technique of the present invention provides an inexpensive yet reliably OS&Y valve with all desired structural components being rigidly connected. The bonnet assembly of the present invention may be utilized with a conventional valve body and pocket design, thereby substantially increasing versatility and reducing manufacturing costs.
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申请公布号 |
US4745938(A) |
申请公布日期 |
1988.05.24 |
申请号 |
US19870104170 |
申请日期 |
1987.10.02 |
申请人 |
PRECISION GENERAL, INC. |
发明人 |
NIMBERGER, SPENCER M.;CHOU, ALAN F. |
分类号 |
F16K27/02;F16K41/02;(IPC1-7):F16K43/00 |
主分类号 |
F16K27/02 |
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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