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首页 > 行业新闻> 双光盘检查阀：管道系统的“监护人”
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双光盘检查阀：管道系统的“监护人”

双光盘止回阀是一种非返回阀，旨在防止介质的反向流动。它具有两个对称的半圆形盘，使其广泛用于各种流体运输系统。
Dual Plate Check Valve0-1

工作原理

阀内的两个圆盘通过铰链连接到中央轴。当介质向前流动时，压力将双盘推到轴上旋​​转并打开，从而形成了一个毫无障碍的流动路径。如果发生反向流动，则圆盘在反向压力和自身重力的作用下迅速关闭，将阀门紧密地安装在挡阀中以阻塞回流，从而保护管道和设备免受损坏（例如水锤）的伤害。

结构特征

  • 双光盘设计：两个对称的圆盘在打开时最大程度地减少流动阻力。关闭后，它们提供了一个较大的密封区域，可确保可靠的密封性能并减少水锤影响。
  • 材料选择：阀体通常由铸铁，碳钢或不锈钢制成，以适应不同培养基（例如水，蒸汽，油产品）的腐蚀性，温度和压力要求。圆盘和阀座通常采用金属对金属或橡胶密封，以平衡耐磨性和密封。
  • 紧凑的结构：与单盘止回阀相比，它具有更紧凑的尺寸，适用于安装空间有限的方案。

申请

它通常用于供水和排水系统，加热管道，工业循环水系统，石化植物等。它特别适合大直径管道（例如，DN100及以上），可以有效地控制具有稳定性和经济的高流量介质的单向流动。
凭借快速打开和关闭，低流阻力和强锤阻力等优点，双盘止回阀已成为确保管道系统安全操作的重要组成部分。
July 02, 2025
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