Insulators employed in the covering of processing components are referred to as jacket. There exist many components of such nature, including valves, pipes, accessories, pumps and filters. Jackets have one main function, that is, provision of insulation against heat loss. The item being jacketed is wrapped in the cover by using ropes to join the cover together. As long as the item is being used, the setup is retained intact.
There is a wide range of thermal-jacketed products that are used in various industries. Jacketed valves are used for both inorganic and organic chemical processors. Some of the industries that find use for jacketed products include petroleum plants, food processors, polymer producers, and pharmaceutical plants among others. There are three broad classifications for jackets, that is, hybrid, swaged, and standard systems.
The most often used system of jacketing is standard jacketing. Preference for standard jacketing is as a result of its capacity to permit even heat distribution by having pipes and valves covered right from the flange. What this implies is that oversize valves are to be used in order to cater for bolts.
It is not common for swaged jacketing to be put into use, save for unique instances. An example where swaged jackets are used is in instances where there is need for preventing cross contamination. One of the prerequisites for employing swaged systems of jacketing is when there is need to accommodate discontinuities in temperature at the flange. In most cases, when compared to standard jacketing, swaged jacketing are relatively cheaper. This is because in the case of swaged jacketing, small line flanges can employed to form what is referred to as capped or partial jacketing.
As suggested by the name, both swaged jacketing and standard jacketing can be combined to produce hybrid jacketing. Hybrid jacketing may also use removal and/or special jacketing. Swaged jacketing can be used to jacket straight-line piping. On the contrary, standard or removable jacketing can be used to jacket valves and fittings. This would assist in preventing discontinuities of temperature at very important flow areas.
With modern technology, all kinds of valves can be jacketed without any problem. The jacketing can be done fully or partially using various fabricating techniques. In standard fabrication technique, valves are modified so that they can accept oversize flanges. The body of the valve is usually extended as necessary to meet certain standards. After modification, the jacket is added. Interior tolerances of the valve must remain the same after jacketing as in an unjacketed valve.
There are a number of reasons that necessitate valve jacketing. The same reasons that necessitate jacketing also form the benefits of the process. To begin with, through jacketing, there is the capacity to keep processing temperatures within close tolerances. In addition, it helps achieve high heat transfer rates from heating mediums to processes. Lastly, jacketing makes it possible to undertake unit construction.
A few shortcomings are also involved in jacketing as well. They include availability of a limited selection of jacketed components and relatively long deliveries for the components. Secondly, there is a lack of industry-wide fabrication standards. This has led to major inconsistencies in products and components produced.
There is a wide range of thermal-jacketed products that are used in various industries. Jacketed valves are used for both inorganic and organic chemical processors. Some of the industries that find use for jacketed products include petroleum plants, food processors, polymer producers, and pharmaceutical plants among others. There are three broad classifications for jackets, that is, hybrid, swaged, and standard systems.
The most often used system of jacketing is standard jacketing. Preference for standard jacketing is as a result of its capacity to permit even heat distribution by having pipes and valves covered right from the flange. What this implies is that oversize valves are to be used in order to cater for bolts.
It is not common for swaged jacketing to be put into use, save for unique instances. An example where swaged jackets are used is in instances where there is need for preventing cross contamination. One of the prerequisites for employing swaged systems of jacketing is when there is need to accommodate discontinuities in temperature at the flange. In most cases, when compared to standard jacketing, swaged jacketing are relatively cheaper. This is because in the case of swaged jacketing, small line flanges can employed to form what is referred to as capped or partial jacketing.
As suggested by the name, both swaged jacketing and standard jacketing can be combined to produce hybrid jacketing. Hybrid jacketing may also use removal and/or special jacketing. Swaged jacketing can be used to jacket straight-line piping. On the contrary, standard or removable jacketing can be used to jacket valves and fittings. This would assist in preventing discontinuities of temperature at very important flow areas.
With modern technology, all kinds of valves can be jacketed without any problem. The jacketing can be done fully or partially using various fabricating techniques. In standard fabrication technique, valves are modified so that they can accept oversize flanges. The body of the valve is usually extended as necessary to meet certain standards. After modification, the jacket is added. Interior tolerances of the valve must remain the same after jacketing as in an unjacketed valve.
There are a number of reasons that necessitate valve jacketing. The same reasons that necessitate jacketing also form the benefits of the process. To begin with, through jacketing, there is the capacity to keep processing temperatures within close tolerances. In addition, it helps achieve high heat transfer rates from heating mediums to processes. Lastly, jacketing makes it possible to undertake unit construction.
A few shortcomings are also involved in jacketing as well. They include availability of a limited selection of jacketed components and relatively long deliveries for the components. Secondly, there is a lack of industry-wide fabrication standards. This has led to major inconsistencies in products and components produced.
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