In order to get the best performance from a valve it is essential that the correct valve is decided on for the service necessary. There are numerous of different circumstances and variables to consider in order to select the appropriate valve for a specific application. These variables will mostly be dictated by services conditions and necessary materials of construction.
When considering service conditions the first step is identifying what type of medium shall be handled. Different valve designs are better suited to liquid while others are preferred for fuel. If it is a liquid, it is important to determine whether or not it will contain any strong particulate matter. It is also important to note whether the media will remain liquid throughout the flow or whether it will vaporize and become a gas along the way.Get more info about coating services, visit Ceramic coating India and TBC coating India
Another variable to consider is what the pressure and temperature will be throughout the handling system. This will not only dictate the correct type about but what material the valve should be constructed from also. For example, at incredibly high temperatures it might be necessary to use ceramics or refractory metals. At very low temps bronze or stainless steel may be required. The widest selection of construction materials falls in the intermediate range. This ranges from 150 to 1000 degrees Fahrenheit. The materials that can be used in this temperature range include carbon steel, cast iron, PVC plastic, and bronze.
Along with considering the major function of the valves it is also important to consider additional variables which may affect the basic material selection. These variables include any necessary deterioration resistance specifications, thermal shock limits, actual physical shock limits, and potential fire hazards. In most cases these variables can be tackled both through the initial construction material along with trim materials.
Finally, it is important to take a close look at what the valve is being asked to do. The first broad category of valve features is on/off. Essentially it's only purpose is to start and stop the movement of the medium being transported. The best valve designs for this include gate, stem, disc, plug, and ball valves.Know more about the valve here.
Another common purpose is throttling. Throttling valves are used as movement regulators and are required to handle increased movement resistance when closed. Globe, angle, slurry, and butterfly valves are all possible options.
In the end, selecting the appropriate valve is mainly dictated by environmental variables, the medium being transported, the expected function, and surrounding services conditions.