| 摘要 |
<p>A valve device 1 is in the form of a poppet valve, for testing pressure in a pressurised fluid system. The valve device 1 comprises a housing 2 formed with a channel 4 extending along the longitudinal axis 6 of the housing 2. The channel 4 forms a fluid communication between the opposite ends 5, 7 of the housing 2. The end 5 of the housing 2 is formed with an axial fluid port 9. Disposed partially within the housing 2 there is a valve member 8 and a retaining component 10 for retaining the valve member 8 within the housing 2. The valve member 8 has a bore 12 extending from one end of the member 8 along the axis 6 to a region distant from the other closed end of the member 8. There are two radial ports 14 that extend radially outward from the bore 12. The valve member 8 and the retaining component 10 are both insertable into the housing 2 and may also be retractable from the housing 2. The valve device 1 comprises means for urging the valve member toward the closed position in the form of a compressible helical spring 16. The means for urging the valve member 12 toward the closed position may alternatively comprise any other suitable compressible form or material. The spring 16 is disposed within the channel 4 and extends from the closed end of the valve 8 to the end 5 of the housing 2. One end of the spring 16 abuts a shoulder 18 formed on a radially outer surface of the closed end of the valve member 8.</p> |
