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Value device assembly as a connection unit for differential pressure transducers

  • US 5,494,072 A
  • Filed: 03/07/1995
  • Issued: 02/27/1996
  • Est. Priority Date: 03/08/1994
  • Status: Expired due to Fees
First Claim
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1. A valve device assembly serving as a connection unit for a differential pressure transducer, comprising:

  • a first inlet-end connection and a second inlet-end connection for connection to a differential pressure source;

    a first outlet-end connection and a second outlet-end connection for connection to the differential pressure transducer;

    a first chamber with a valvelike first shutoff device disposed therein;

    a second chamber with a valvelike second shutoff device disposed therein;

    a first passage connecting the first chamber with the first outlet-end connection;

    a second passage connecting the first chamber with the second outlet-end connection;

    a third passage connecting the second chamber with the second outlet-end connection; and

    a fourth passage connecting the second chamber with the first outlet-end connection, whereinthe first shutoff device closes the first inlet-end connection in a first end position, and the second shutoff device closes the second inlet-end connection in a second end position;

    after the first or second cutoff device has been lifted from the first or second end position, respectively, the pressure applied to the associated inlet-end connection is simultaneously applied to the two outlet-end connections; and

    the first shutoff device closes the second passage in a third end position, and the second shutoff device closes the fourth passage in a fourth end position.

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