Insulators used to cover processing components are referred to as jackets. There is a lot of variance in these components. Some of the processing components include accessories, pipes, valves, pumps, and filters. The main role played by these jackets is provision of thermal insulation. Hooks are joined together firmly by use of ropes to wrap the cover around the item. This outfit is retained if the item is being used.
There are several different products that are thermal-jacketed and used in factories. The jacketed valves find use in both organic and inorganic chemical processors. Pharmaceutical plants, polymer producers, food processors and petroleum plants are among the industries that use products that are jacketed. Jackets are categorized under three broad categories which are standard, swaged, and hybrid systems.
Standard jacketing is one of the most commonly used jacketing systems. It is preferred because it allows for uniform application of heat by covering valves and pipes from the flange. The pipe or valve is usually referred to as the core. The flange is usually welded with the jacket. That means that oversize valves need to be used in order for them to accommodate 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.
The reasons for placing jackets around valves are plenty. It is these reasons that also comprise of the advantages of jacketing. Firstly, maintaining temperatures of processing in close tolerances is made possible when jacketing is done. The second advantage is that high heat transfer rates are attained from the medium of heating to the process. Finally, jacketing assists in enabling one to do unit construction.
There are also a few disadvantages that are associated with jacketing. Some of them include relatively long component deliveries and presence of limited options of components that are jacketed. In addition to that, there are no fabrication standards in the industry. Major inconsistencies have been caused in components and products produced due to lack of industry-wide standards.
There are several different products that are thermal-jacketed and used in factories. The jacketed valves find use in both organic and inorganic chemical processors. Pharmaceutical plants, polymer producers, food processors and petroleum plants are among the industries that use products that are jacketed. Jackets are categorized under three broad categories which are standard, swaged, and hybrid systems.
Standard jacketing is one of the most commonly used jacketing systems. It is preferred because it allows for uniform application of heat by covering valves and pipes from the flange. The pipe or valve is usually referred to as the core. The flange is usually welded with the jacket. That means that oversize valves need to be used in order for them to accommodate 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.
The reasons for placing jackets around valves are plenty. It is these reasons that also comprise of the advantages of jacketing. Firstly, maintaining temperatures of processing in close tolerances is made possible when jacketing is done. The second advantage is that high heat transfer rates are attained from the medium of heating to the process. Finally, jacketing assists in enabling one to do unit construction.
There are also a few disadvantages that are associated with jacketing. Some of them include relatively long component deliveries and presence of limited options of components that are jacketed. In addition to that, there are no fabrication standards in the industry. Major inconsistencies have been caused in components and products produced due to lack of industry-wide standards.
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