{
  "$type": "site.standard.document",
  "description": "The invention relates to a butterfly valve comprising a butterfly closure member cooperating with a valve seat, which valve seat has a substantially annular seal that, with the closure member in the closed position, adheres by a given compression force in the direction transversal to the flow…",
  "path": "/patents/924996",
  "publishedAt": "2017-06-21T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D9/101",
    "POLYPIPE ITALIA SRL [IT]"
  ],
  "textContent": "The invention relates to a butterfly valve comprising a butterfly closure member cooperating with a valve seat, which valve seat has a substantially annular seal that, with the closure member in the closed position, adheres by a given compression force in the direction transversal to the flow direction and/or to the axis of the valve seat against the head peripheral edge of the closure member and/or by a given compression force in the flow direction against a front peripheral band. The valve further comprises a diametral shaft rotatably supporting the closure member from a closed position wherein the closure member is placed transversely to the flow direction and/or to the axis of the valve seat to a maximum open position with the closure member rotated by 90° with respect to said closed position. The closure member has portions offset in an opposite direction with respect to a plane passing by the axis of rotation of the diametral plane.",
  "title": "BUTTERFLY VALVE"
}