While industrial tanks can be classified in various categories, two of the most common storage tanks are shop-built and field erected. As the name suggests, shop-built tanks are fabricated in manufacturing units and then transported to the facility. In contrast, field-erected tanks are directly assembled and installed in the storage facility. The type of storage tank used in your facility plays a crucial in determining requirements for STI inspections.
Choosing between these two types of storage tanks can be a daunting experience for any facility owner. Since both shop-built and field-erected tanks have their fair share of advantages and disadvantages, one should keep certain things in mind when picking the tanks.
If you are in fences as to which tank to select, keep these things in mind. They are:
Having answers to these questions will simplify the process of selecting the right storage tank for your facility.
This blog will discuss the difference between shop-built tanks and field-erected tanks and how to choose between the two.
While both types of tanks are used for storing different kinds of products, they differ from each other on cost, timeline, and size.
Cost: When it comes to cost, field-erected tanks are costlier than shop-built tanks. If you are tight on budget, you can go for shop-fabricated tanks.
Size: Since shop-built tanks have to be moved from the manufacturing unit to the facility, their size should be limited to the capacity of the transportation vehicle. On the other hand, there is no size limit in field-erected tanks.
Timeline: Shop-erected tanks have a dependable timeline for completion. Since the tanks are built in a controlled environment, the process doesn’t get hindered by weather elements. Field-erected tanks are susceptible to weather elements like rain, storm, or flood and may require more time for completion.
Besides this, one must also consider tank inspection standards in mind. Shop-built tanks have different inspection requirements than field-erected tanks. Before getting any tank, make yourself aware of different types of inspection norms like the STI sp001.
Now let’s look into each difference in detail.
Compared to field-erected tanks, shop-built tanks are affordable. Since shop-fabricated tanks are manufactured in a controlled environment, their manufacturing is less likely to get affected by harsh weather conditions. The incidents of delays are less in shop-built tanks. In tank manufacturing facilities, there are different sections where the crew work in an assembly line to fix each part of the tank as it moves through various departments. This further simplifies the process and makes the tanks less costly.
One of the most significant disadvantages of a shop-fabricated tank is that it can’t be built beyond a specific capacity or size. The size of the shop-built tank should be in accordance with the truck on which it would be shipped to the facility. The size limit of shop-fabricated tanks is somewhere up to hundreds of thousands of gallons.
If your facility requires storage tanks with a capacity of millions of gallons, you should go for field-erected tanks.