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Repair the parts of the plunger type control valve
The author: Time:2020/9/3

      (1)检查柱塞式调节阀的阀体内阀座圆套和阀瓣有无击穿、沟痕、变形等缺陷。
      (2)检查阀座结合处的焊口有无磨损及裂纹,发现磨损、开焊等缺陷时应进行补焊处理。
      (3)清理阀盖密封部位的盘根,除去填料压圈的锈垢后将之打磨干净。
      (4)将阀杆密封填料室清理干净,清除填料压盖的锈垢,使其表面清洁,用砂布将填料室内壁和压盖座圈清理干净。
      (5)检查阀杆的弯曲度,其不能大于1%,清除表面锈垢,使之符合质量标准,否则应更换。
      (6)检查阀盖及阀杆密封部位螺栓的螺纹,其应无断裂、咬齿等缺陷,螺母应旋转灵活,螺纹部分应涂以防锈剂。
      (7)检查阀盖的接合面,清除其原衬垫,结合面应清理干净,发现缺陷时应进行刮研。
      (8)用砂布清理阀瓣、阀座的表面,阀瓣在阀座中应上下移动自如。
      (9)检查阀杆与阀芯连接轴销是否完好,各连接件是否完好,传动是否可靠。

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