? ? PTFE lined valve It is a valve lined with polytetrafluoroethylene (PTFE), which has excellent properties such as corrosion resistance, wear resistance, high temperature resistance, and low temperature resistance. It is widely used in industries such as petrochemicals, metallurgy, power, papermaking, and pharmaceuticals.

PTFE lined valves mainly include PTFE lined butterfly valves, PTFE lined ball valves, PTFE lined gate valves, etc. Their characteristics are as follows:
1. Corrosion resistance: Polytetrafluoroethylene has good chemical inertness and can withstand most corrosive media such as acids, alkalis, salts, and organic solvents.
2. Wear resistance: Polytetrafluoroethylene has a low coefficient of friction and good self-lubricating properties, therefore it has high wear resistance.
3. High and low temperature resistance: The temperature range for the use of polytetrafluoroethylene is -200 ℃ to 260 ℃, and it can maintain good mechanical properties even at low temperatures, meeting the requirements for use under low and high temperature conditions.
4. Good sealing performance: PTFE lined valves use PTFE as the sealing material, which has good sealing performance and can achieve zero leakage.
5. Simple structure: The PTFE lined valve has a simple structure, light weight, and easy installation.