The entire seat-hinge-pin-disc assembly can be tested outside the valve before placing into the body and seal welding. Eliminates pin seal leakage.

 
  • 独特的盒式结构。在安装到阀体内部和进行密封焊接之前,全部的阀座-铰链-销钉-阀瓣总装可以在阀门外部进行测试。避免销钉密封泄漏。
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