发明名称 |
INSERTION VALVE AND INSTALLATION METHOD |
摘要 |
<p>A valve assembly for insertion in a line formed by an existing pipe of predetermined outside diameter containing fluid under pressure i ncludes a valve b ody with a bonnet-supporting flange that defines an access way into the valve body through which an installer can cut and remove a section of the existing pipe. A bonnet with a moveable gate having a width no less than the predetermined outside diameter of the pipe, includes a flange-mating portion that fits into the access way in a fluid-tight fit while defining a gate opening through which the gate moves into the valve body to a closed position in which the gate extends through the gate-receiving gap in the pipe and into fluid-tight engagement of the valve body. Installation is accomplished by (i) assembling the valve body over the existing pipe, (ii) mounting a temporary isolation valve on the bonnet-supporting flange, (iii) cutting and removing a section of the existing pipe through the isolation valve to form the gate-receiving gap in the pipe (iv) installing the bonnet through the isolation valve, and then (v) removing the isolation value up over the bonnet.</p> |
申请公布号 |
WO2004079203(A1) |
申请公布日期 |
2004.09.16 |
申请号 |
WO2003US31480 |
申请日期 |
2003.10.06 |
申请人 |
OCCLUDE |
发明人 |
MAICHEL, JEFFREY, L.;SOVILLA, THOMAS, A. |
分类号 |
F16K27/04;(IPC1-7):F04F10/00;F16L43/00 |
主分类号 |
F16K27/04 |
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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