| 摘要 |
A biasing device for use with a piston actuator of a fluid valve includes a tubular seat member, a tubular retention member, a tubular seat bracket, and a biasing element disposed between an external annular flange of the tubular seat member and an external annular flange of the tubular seat bracket. The tubular retention member is partially disposed within the tubular seat member, the tubular retention member passing through an opening in the inner flange of the tubular seat member. The tubular retention member is partially disposed within the tubular seat bracket, the tubular retention member passing through an opening in the inner flange of the tubular seat bracket. The basing member is seated against the exterior annular flange of the tubular seat member and against the exterior annular flange of the tubular seat bracket.
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