The proper method is to use a metal to metal sealingcone. Most cone systems have a male and female shape that has to be manufactured using special cutting tools.
正确的方法是金属对金属的椎面密封。大多数的椎密封可以用特殊的切削工具做成内椎或外椎。
2
Medium pressure increases toward the valve seat surface and oblique conesealing surface squeeze is tightening, sealing the better.
正向介质压力增大时阀板斜圆锥表面与阀座密封面挤压越紧，密封效果越好。
3
The metal-plastic composite nut, according to Claim 1 and 2, is characterized in that the inner surface at one end of metal insert is cone-shaped sealing surface.