Several Common Structural Forms Of Fluorine-lined Dc Stop Valves

Lined Globe Valve is a valve that uses a valve disc to control opening and closing. The main opening and closing parts of the fluorine-lined DC stop valve are the valve disc and the valve seat. By changing the distance between the valve disc and the valve seat, the size of the channel cross-section can be changed, so that the flow rate of the fluid can be changed or the channel can be cut off. General stop valves are straight-through, direct-current, right-angle, etc. according to the valve body structure.
The characteristics of the straight-through stop valve are that the axes of the inlet and outlet are on the same straight line and perpendicular to the axis of the stem, so the fluid resistance is small. The axes of the inlet and outlet of the direct-current stop valve body are on the same straight line, and the axis of the valve stem is at a 45° angle (also 55°) to the axis of the valve body passage. The fluid is almost direct current, so the fluid resistance is smaller than that of the straight-through and right-angle types, and its resistance coefficient is close to that of the gate valve.
The axes of the inlet and outlet of the right-angle stop valve are perpendicular to each other, the axis of the valve stem coincides with the axis of the passage at one end, and the fluid resistance is greater than that of the straight-through type. It is often used at right-angle turns in pipelines. Most high-pressure stop valves are of this type.
Fluorine-lined DC stop valves are widely used, mainly in steam pipelines, so they are also called valves. Fluorine-lined DC stop valves can also be used in water supply, compressed air, vacuum and various material pipelines. It can accurately adjust the flow and tightly cut off the channel. But it cannot be used in liquid pipelines with high viscosity, easy to coke, and containing suspended matter and crystals.