Is it necessary to install gasket for PTFE pipe installation?
Q: Our company began to install the tetrafluoride pipe without gasket, the leadership said that the surface of PTFE material is relatively smooth, do not need to add gasket, and now began to test pressure, and are basically leaked, do not know everyone What do you think? Pipeline to go to the medium is hydrogen chloride gas, the temperature of 150 degrees, diameter DN300, the pressure is now under pressure to test the pressure before the 0.15MPa.
A: need to add gasket. On the other hand, without the gasket, it is easy to damage the flanging, or cause the flanging part to be sealed again due to indentation.