08-06-2017 дата публикации
Номер: US20170159831A1
Принадлежит:
The disclosed spool valve is used especially in conveying systems comprising conveying pipes () and includes a spool () which allows the conveying cross-section of the conveying pipe () to be closed. The spool () has at least one through-hole (). The conveying pipe () is sealed from the spool () by at least one sealing ring (). Said sealing ring () surrounds the conveying line () and includes a washer-shaped sealing portion. Said sealing portion lies flat on the spool and seals under the effect of the difference between the pressure in the conveying line () and the ambient pressure. 1667113327282728667112728272866711667aaa,a. A slide valve , in particular for use in conveying systems with conveying lines ( , ′ , ) , with at least one slide ( , ) , with which the conveying cross section of the conveying line can be closed off and which comprises at least one passage opening () , and with at least one sealing ring ( , ; ′ , ′) , with which the conveying line ( , ′ , ) is sealed against the slide ( , ) , characterized in that the sealing ring ( , ; ′ , ′) surrounds the conveying line ( , ′ , ) and comprises an washer-like sealing part which lies flat against the slide () and seals through the pressure differential between the pressure in the conveying lines ( , ′ , ) and the ambient pressure.211232311aa,aa. The slide valve according to claim 1 , characterized in that the slide ( claim 1 , ) lies between two retaining plates ( claim 1 , ; ) claim 1 , each of which are spaced from the slide ( claim 1 , ).32728272811a. The slide valve according to claim 1 , characterized in that a sealing ring ( claim 1 , ′ ′ claim 1 , ′) with an washer-like sealing part each lies against both sides of the slide ( claim 1 , ).42381415191. The slide valve according to claim 2 , characterized in that the two retaining plates ( claim 2 , ) are held spaced from one another by way of spacers () claim 2 , which penetrate slots ( claim 2 , ) of the slide () extending in shifting direction () of ...
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