Four-eccentricity butterfly valve

Four-eccentricity butterfly valve

  • CN 105,003,667 A
  • Filed: 07/07/2015
  • Published: 10/28/2015
  • Est. Priority Date: 07/07/2015
  • Status: Active Application
First Claim
Patent Images

1. four eccentric-butterfly-valves, comprise valve rod, butterfly plate, valve body, valve seat, trim ring;

  • Described valve body has a valve flowing channel;

    Described valve seat is installed in valve body by described trim ring;

    Described butterfly plate is arranged in described valve flowing channel, and is connected with described valve rod;

    Described butterfly plate can rotate under described valve rod effect;

    Described butterfly plate and described valve seat coordinate formation conical seal (contact) face;

    The shaft axis of described valve rod and the vertical center line of described butterfly plate non-intersect;

    The shaft axis of described valve rod and the center line of described valve flowing channel non-intersect;

    A drift angle is formed between the gyration center axis of described valve seat and the center line of described valve flowing channel;

    It is characterized in that;

    any two by the plane of the gyration center axis of described valve seat formation crossing with described conical seal (contact) face four intersections;

    The rotary middle spindle line of two intersections and described valve seat that are positioned at same plane forms two angles, described two corner dimension differences;

    The angle that the rotary middle spindle line of the intersection and described valve seat that are positioned at Different Plane is formed also varies in size.

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