美标锻钢固定式球阀-浙江正丰阀门

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阀门的主要结构，功能和特点

1.耐火结构 FIRE SAFE SEAT SEALING

      根据用户的需要，球阀可设计成耐火结构，当万一发生火灾而使密封圈烧损时，球阀的各个密封部位均能形成金属对金属的硬密封结构，有效阻止介质的扩散，防止火灾扩大。

 According to the user&＃39;s requirement,the ball valve can be designed with fire-resistant stucture.In case of a fire and the sealing ring is damaged,every sealing part of the ball valve can form the structure of metal-to-metal hard seal,which can prevent the spreading of both the media and fire.

2.带锁结构 INTERLOCKING DEVICE

      对安装在野外的或防止非工作人员误操作的，以及在有些震动较大的场合手柄受到撞击易产生误操作的阀门，在阀门的全开或全关的位置没有锁定孔，需要时可加锁，起到安全保险作用。

      For valve installed outdoor,those preventing improper operation of non-workers and valves,of which collision of its stem in relatively violent vibration occasions easily causes improper operation,a locking bore can be set in the fully open position or fully closed position and a lock can be used if needed,for the purpose of security insurance.

3.防静电结构 ANTI-STATIC DEVICE

      根u据用户需要，球阀可设计防静电结构，即在球体与阀杆，阀杆与阀体之间设置导电弹簧，使阀门在开启过程中产生的静电能通过所设置的静电通道传入管路导入地下，达到清除静电的目的。避免静电打火点燃易燃介质，确保系统安全。

      According to the user&＃39;s requirement,the ball valve can be designed with anti-static structure;namely,fix the conductive spring between the ball and stem as well as stem and valve body,to enable the static generated when opening the valve to be transmitted to the pipeline through static channel and conducted underground and finally eliminate the static.It can prevent the static ignition form lighting the medium to ensure safety of the system.