| 摘要 |
<p>PCT No. PCT/NO92/00051 Sec. 371 Date Sep. 24, 1993 Sec. 102(e) Date Sep. 24, 1993 PCT Filed Mar. 27, 1992 PCT Pub. No. WO92/17721 PCT Pub. Date Oct. 15, 1992.A valve for a pipe system wherein liquid circulates is intended to be controlled dependent on the liquid temperature within the system by means of a thermostat adapted to actuate an electro magnet which, on its part, dependent on whether it is current-carrying or not, is adapted to retain the valve spindle in a position corresponding to open or closed valve position, respectively. The valve housing has plate-shaped seat body having a large central through-going flow opening and a number of smaller corresponding openings closer to the circumference. A spring-loaded first valve body is displaceably arranged on the spindle and cooperates with the central opening of the seat body in order to close/open the opening, a concentrical, spring-loaded hollow piece constituting a second valve body which also is displaceably arranged on the spindle cooperating with the peripheric openings via an annular flange portion in order to close/open the last-mentioned openings. The two valve bodies are axially displaceable in relation to each other, and they are each assigned a carrier on the spindle.</p> |
