| 摘要 |
<p>An outer threaded type sluide valve having no bonnet and formed of carbon steel, 3 1/2 nickel steel or stainless steel. A yoke (18) is threaded directly to a body (1), a packing chamber (7) is provided directly at the body (1), and a cylindrical reverse seat (16) with a collar is clamped with screws to the lower portion of the chamber (7). A valve seat (15) is urged and brought into contact with a stationary surface section (12) formed to be projected into a fluide guide hole (11), is bent at the cylindrical end and is fixedly intruded into the stepwise edge of the stationary surface section (12).</p> |
