Several precautions for installing fluorine lined globe valves?

The installation precautions for fluorine lined shut-off valves are as follows:

Handwheel and handle operated globe valves can be installed at any position in the pipeline. Handwheels, handles, and lifting mechanisms are not allowed for lifting purposes. The flow direction of the medium should be consistent with the direction of the arrow shown on the valve body.

Globe valve, also known as cut-off valve, is a widely used valve. Its popularity is due to the low friction between sealing surfaces during the opening and closing process, its durability, small opening height, easy manufacturing, and convenient maintenance. It is not only suitable for medium and low pressure, but also for high pressure. Its closing principle is to rely on the pressure of the valve stem to tightly fit the sealing surface of the valve disc and the sealing surface of the valve seat, preventing the flow of medium.

The shut-off valve only allows one-way flow of medium and has directionality during installation. Its structural length is larger than that of the gate valve, and at the same time, the fluid resistance is high. When operating for a long time, the sealing reliability is not strong.

When the fluorine lined globe valve is opened and the opening height of the valve disc is 25% to 30% of the nominal diameter, the flow rate has reached a high level, indicating that the valve has reached the fully open position. So the fully open position of the shut-off valve should be determined by the stroke of the valve disc. The installation and maintenance of fluorine lined globe valves should pay attention to the following: 1. Globe valves operated by handwheels and handles can be installed at any position in the pipeline. 2. Handwheels, handles, and lifting mechanisms are not allowed for lifting purposes. 3. The flow direction of the medium should be consistent with the direction of the arrow shown on the valve body.