Adjustment of this union nut can compensate for wear of TFE seats, with no production loss to remove valve for internal adjustment.
这种管接螺母的调整能够弥补TFE阀座的磨损，避免由于拆卸阀门进行内部调整作带来的损失。
The open torque is little and the valve can self compensate after wearing because of big chocking force. The seal performance is good and stable.
开启力矩小，楔紧力大。磨损后，能自行补偿，密封性好，性能稳定。
Another way is to provide a valve incorporating thermostat metal which opens or closes certain ducts to compensate for changes of air viscosity with temperature.
另一种方法是提供一个包含恒温金属阀门开启或关闭某些管道，以弥补空气粘度随温度的变化。
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