Category: Storage

Hortonsphere Vessel

The Hortonsphere vessel permits the storage of a large volume in one unit with only one set of pipe connections and fittings. Batteries of shop built-up cylindrical tanks have been used to provide large volumes of pressure storage. This practice necessitates the use of multiple pipe connections and the duplication of tank fittings, vents and […]

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Vapor Recovery Systems

Vapor recovery systems are generally used to prevent pollution of the environment and to recover valuable product. Two basic types of vapor recovery systems may be encountered. One is designed to gather toxic wastes that would pollute the atmosphere but are not valuable enough to warrant full recovery. In this type system, the vapors are […]

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Storage Vapor Losses

Vapors emitted from the vents and/or relief valves of a storage tank are generated in two ways: • Vapors that are forced out of the tank during filling operations. • Vapors that are generated by vaporization of the liquid stored in the tank. A vapor recovery system should be sized to handle the total vapor […]

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Refrigerated Tank Insulation Systems

Low temperature insulation is required for both spherical and flat bottomed cylindrical refrigerated tanks. Two types of insulation systems are commonly used for low temperature service — single wall and double wall. In the single wall system, the vessel wall is designed to withstand the design service conditions of the liquid to be stored. The […]

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Vessel/Tank Insulation

Types — The four basic types of thermal insulating material are: fibrous, cellular, granular, and reflective. These materials differ in many characteristics. Refer to Fig. 6-15 for a description of these materials and typical conductivity values and principal properties of common industrial insulations. Uses — Principal uses of insulation are for personnel protection, process temperature […]

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Vessel/Tank Protective Coatings

Internal — Use of internal coatings is primarily to protect the inside surface of the tank against corrosion while also protecting the stored contents from contamination. Consideration must always be given to such factors as the type of product being stored, type of coating available, type of surface to be coated, surface preparation, compatibility of […]

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Vessel/Tank Materials

Metallic — Shop welded, field welded, and bolted storage tanks are customarily fabricated from mild quality carbon steel. Most common for welded tanks are A-36 structural steel and A-283 grade “C” structural quality carbon steel. Sheet gauge steels for bolted tanks are of commercial quality having a minimum tensile strength of 52,000 psi. A-612, A-515, […]

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Full Containment Tank

A double tank designed and constructed so that both the inner tank and the outer tank are capable of independently containing the refrigerated liquid stored. The outer tank or wall should be 3 feet to 6 feet distant from the inner tank. The inner tank contains the refrigerated liquid under normal operating conditions. The outer […]

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