Points To Pay Attention To When Using Ptfe Lined Valves

Lined Valve When using, you need to pay attention to the following points:
1. Before use, carefully read the instructions for use of the product.
2. Pressure, temperature, medium, etc. must be within the range of use of the valve.
3. To prevent changes in pipeline stress caused by temperature changes in PTFE-lined valves, minimize temperature changes and add U-shaped expansion joints before and after the valve.
4. It is forbidden to use levers to open and close the valve. Pay attention to the opening and closing direction and limit device of the valve. The opening and closing must be in place. Do not force the closing to prevent premature damage to the fluoroplastic.
5. Some unstable and easily decomposed media will cause valve damage or leakage, and measures should be taken to eliminate or. In the selection of valves, the instability of the medium and the conditions that may be formed during decomposition should be considered.
6. For toxic, flammable, explosive, and corrosive media, it is forbidden to replace the valve packing under pressure. Although fluoroplastic valves are designed to have high sealing performance, it is not recommended to replace them under pressure.
7. If the pipeline oscillates for a long time, measures should be taken to eliminate it to prevent damage to the valve.
8. During the application of fluorine-lined valves, the fluorine plastic sealing surface is often damaged by crystalline media, solid particles, etc. due to its soft texture, causing sealing leakage, which should be repaired or replaced in time.
9. PTFE-lined valves usually do not use gaskets on the flanges. If the flange leaks, the flange nuts can be tightened evenly to eliminate the leakage.
10. If it is a toxic, flammable, explosive or other medium, the staff should wear protective masks and rubber gloves, and wear protective clothing according to the operating procedures to prevent accidents.