Precautions, Structural Features And Product Uses Of Fluorine-lined Stop Valves

The following matters should be noted during the installation and maintenance of Lined Globe Valve:

The stop valve operated by handwheel or handle can be installed at any position of the pipeline.

Handwheel, handle and dynamic mechanism are not allowed to be used for lifting.

The flow direction of the medium should be consistent with the direction of the arrow shown on the valve body.

The fluorine-lined stop valve, also known as the stop valve, is a widely used valve. The reason why it is so popular is that the friction between the sealing surfaces is small during the opening and closing process, it is relatively durable, the opening height is not large, it is easy to manufacture and maintain, and it is not only suitable for medium and low pressure, but also for high pressure. Its closing principle is to rely on the valve stem pressure to make the valve disc sealing surface and the valve seat sealing surface fit tightly to prevent the flow of the medium.

The stop valve only allows the medium to flow in one direction and has directionality during installation. Its structural length is greater than that of the gate valve, and the fluid resistance is large. When it is in long-term operation, the sealing reliability is not strong.

The stop valve is divided into three categories: straight-through, right-angle and direct current oblique stop valves.

Compared with gate valves, stop valves have a simpler structure and are easier to manufacture and maintain.

The sealing surface is not easy to wear or scratch, has good sealing and long service life.

The valve disc has a small stroke when opening and closing, the opening and closing time is short, and the valve height is small.

The valve disc and the valve stem are designed as an integrated structure, which is compact and safe to use.

There are three structural forms of stop valves: straight-through type, direct-current type, and angle type, among which the straight-through type is commonly used. The angle type can be installed at the corner of the pipeline system, and the direct-current type has the smallest flow resistance among stop valves.

Pneumatic and electric devices are configured according to user needs to meet the needs of remote control and program control.

The replacement part lining material can be applied to various media.

It is suitable for various concentrations of aqua regia, sulfuric acid, hydrochloric acid, hydrofluoric acid and various organic acids, strong acids, and strong oxidants at temperatures from minus 50 degrees Celsius to 150 degrees Celsius. It is also suitable for pipelines of various concentrations of strong alkali organic solvents and other corrosive gases and liquid media.