Here are a few ways to determine the appearance of PTFE seated butterfly valves.
1.Sealing surface needs to be clean and transparent, do not choose black, yellow fluorine lined butterfly valve, the observation of fluorine lined butterfly valve seat and fluorine lined butterfly plate fluorine plastic can be seen, yellow and black sealing surface may be secondary use of fluorine plastic.But not absolutely, so it is best to choose a clean and transparent sealing cover.
2.Fluorine lined butterfly valve on the valve body and the valve body of the joint position whether there is a relative gap. Because the fluorine lined butterfly valve in the process of use will appear wear and tear, the use of a long time will appear internal leakage. As long as there is a gap between the upper body and the lower body can be tightened to re-seal the joint.
The fluorine lined butterfly valve body of Bundor valve is sprayed with acsu epoxy resin plastic powder, which can deposit thicker thickness, stronger adhesion after fusing and curing, and more beautiful appearance.
