{"id":838,"date":"2026-01-21T07:17:03","date_gmt":"2026-01-21T07:17:03","guid":{"rendered":"https:\/\/www.shijievt.com\/?post_type=product&p=838"},"modified":"2026-02-04T05:51:51","modified_gmt":"2026-02-04T05:51:51","slug":"api-620-storage-tank-design-and-installation","status":"publish","type":"product","link":"https:\/\/www.shijievt.com\/ms\/product\/api-620-storage-tank-design-and-installation\/","title":{"rendered":"API 620 Storage Tank Design and Installation"},"content":{"rendered":"
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Before the design, we need to know from you:<\/h1>\n

I. Basic Operating Conditions and Media Information<\/h3>\n

Storage Media<\/h4>\n
    \n
  • Media Name<\/strong> (e.g., LNG, liquid oxygen, chemical solvents, crude oil, etc.)<\/li>\n
  • Media Characteristics<\/strong>: Density, viscosity, flash point, corrosivity (presence of sulfur, chloride ions, acids, alkalis), volatility, and whether it is a low-temperature \/ high-temperature medium.<\/li>\n
  • Media Temperature Range<\/strong> (maximum \/ minimum operating temperature) and whether phase change occurs (e.g., boiling, solidification).<\/li>\n<\/ul>\n

    Design Pressure and Vacuum Level<\/h4>\n
      \n
    • Design Pressure<\/strong> (positive pressure \/ negative pressure; API 620 allows a maximum of 15 psi; it is necessary to clarify whether overpressure conditions exist).<\/li>\n
    • Vacuum Level<\/strong> (e.g., negative pressure value when the tank is emptied), with consideration given to structural stability under vacuum conditions.<\/li>\n<\/ul>\n

      Media Volume Requirements<\/h4>\n
        \n
      • Total Volume<\/strong> and Working Volume<\/strong> (safety margins need to be reserved to avoid overflow due to thermal expansion).<\/li>\n
      • Filling Coefficient<\/strong> (e.g., maximum filling ratio for liquid media, usually around 0.95, which must comply with API 620 requirements).<\/li>\n<\/ul>\n
        <\/div>\n

        II. Tank Structure and Dimension Parameters<\/h3>\n

        Core Dimensions<\/h4>\n
          \n
        • Inner \/ Outer Diameter<\/strong>, total height, and effective height (maximum height for media storage).<\/li>\n
        • Head Type<\/strong> (e.g., ellipsoidal, dished, conical) and head height (affects the stress and sealing design of the tank top).<\/li>\n
        • Number of Tanks<\/strong> (for multi-tank system design, the spacing and connection method must be specified).<\/li>\n<\/ul>\n

          Structural Form<\/h4>\n
            \n
          • Tank Type<\/strong> (vertical cylindrical, conical roof \/ domed roof, flat bottom \/ conical bottom).<\/li>\n
          • Support Type<\/strong> (skirt support, truss support, ground support), which must match the foundation conditions.<\/li>\n<\/ul>\n
            <\/div>\n

            III. Environmental and Compliance Requirements<\/h3>\n

            Geographic Environmental Parameters<\/h4>\n
              \n
            • Seismic Fortification Intensity of the Location<\/strong> (seismic calculation must be performed in accordance with API 620 Appendix E).<\/li>\n
            • Maximum Wind Speed, Wind Pressure, and Snow Load<\/strong> (affect tank wall stability and wind-resistant design).<\/li>\n
            • Soil Type and Groundwater Level<\/strong> (affect foundation design and anti-corrosion requirements).<\/li>\n<\/ul>\n

              Compliance and Certification Requirements<\/h4>\n
                \n
              • Regulatory Requirements of the Destination Country \/ Region<\/strong> (e.g., EU REACH, U.S. FDA, anti-corrosion standards for Middle Eastern countries).<\/li>\n
              • Need for API Certification, Third-Party Testing<\/strong> (e.g., SGS, BV) or local acceptance standards (e.g., ASME BPVC, GB 50128).<\/li>\n<\/ul>\n
                <\/div>\n

                IV. Material and Anti-Corrosion Requirements<\/h3>\n

                Main Material Selection<\/h4>\n
                  \n
                • Materials for Tank Wall, Tank Bottom, and Head<\/strong> (e.g., carbon steel, stainless steel, low-temperature steel, which must match the corrosivity and temperature of the media).<\/li>\n
                • Material Standards<\/strong> (e.g., ASTM A516\/A537 carbon steel, ASTM A240 stainless steel) and key mechanical properties (yield strength, tensile strength, elongation).<\/li>\n<\/ul>\n

                  Anti-Corrosion and Protection<\/h4>\n
                    \n
                  • Type and Thickness of Anti-Corrosion Coating<\/strong> (primer \/ topcoat, e.g., epoxy coating, galvanized layer).<\/li>\n
                  • Need for Cathodic Protection System<\/strong> (sacrificial anode \/ impressed current), with clear requirements for anti-corrosion grade and service life.<\/li>\n<\/ul>\n
                    <\/div>\n

                    V. Operation and Additional Requirements<\/h3>\n

                    Inlet \/ Outlet Methods<\/h4>\n
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                    • Inlet \/ Outlet Location<\/strong> (top \/ bottom) and method (pumping \/ gravity discharge).<\/li>\n
                    • Need for Mixing, Heating \/ Cooling Systems<\/strong> (e.g., jacket, coil), with clear requirements for heat exchange area and temperature control.<\/li>\n<\/ul>\n

                      Accessory Configuration<\/h4>\n
                        \n
                      • Safety Accessories<\/strong> (safety valve, breather valve, level gauge, thermometer, drain outlet).<\/li>\n
                      • Number and Location of Manholes and Nozzles<\/strong>, which must comply with API 620 accessory installation specifications.<\/li>\n<\/ul>\n
                        <\/div>\n

                        VI. Delivery and Schedule Requirements<\/h3>\n

                        Design and Delivery Standards<\/h4>\n
                          \n
                        • Requirements for Design Output Documents<\/strong> (drawings, calculation sheets, material lists, compliance certificates).<\/li>\n
                        • Schedule Milestones<\/strong> (design cycle, production cycle, delivery time), which must match the project schedule.<\/li>\n<\/ul>\n

                          Quality and Acceptance Standards<\/h4>\n
                            \n
                          • Welding Standards<\/strong> (e.g., AWS D1.1) and non-destructive testing requirements (RT\/UT\/MT\/PT ratio).<\/li>\n
                          • Pressure Testing Requirements<\/strong> (hydraulic test pressure, pressure holding time).<\/li>\n<\/ul>\n
                            <\/div>\n

                            VII. Special Working Conditions and Risks<\/h3>\n

                            Fire and Explosion Prevention<\/h4>\n
                              \n
                            • Whether the Tank is Near Ignition Sources<\/strong> and fire protection distance requirements.<\/li>\n
                            • Whether the Media is Flammable or Explosive<\/strong>, with clear requirements for explosion-proof grade and protection measures.<\/li>\n<\/ul>\n

                              Extreme Working Conditions<\/h4>\n
                                \n
                              • For conditions such as low temperature, earthquake, and typhoon, the structural ultimate load-bearing capacity must be considered.<\/li>\n<\/ul>\n
                                <\/div>\n

                                VIII. Commercial and Cost Information<\/h3>\n

                                Cost and Budget<\/h4>\n
                                  \n
                                • Budget Range<\/strong> (material cost, processing cost, transportation cost).<\/li>\n
                                • Acceptance of Cost Optimization Schemes<\/strong> (e.g., material substitution, structural simplification).<\/li>\n<\/ul>\n

                                  Supplier and Cooperation Requirements<\/h4>\n
                                    \n
                                  • Supplier Qualifications<\/strong> and localization requirements (e.g., need for local procurement).<\/li>\n
                                  • Payment Methods and Delivery Terms<\/strong> (e.g., FOB\/CIF trade terms).<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

                                    In most regions and countries across Europe, America, and globally, standards such as the American Petroleum Institute (API) 650, API 620, and API 12D are predominantly adopted for the design, construction, and installation of oil tanks and storage tanks. These belong to the API standards series. API, established in 1919, is the first national commercial association in the United States and one of the earliest and most successful standard-setting chambers of commerce worldwide. A key mission of API is to standardize equipment used in the petroleum and natural gas industries, ensuring the safety, reliability, and interchangeability of equipment within the industry. Developing and coordinating standards is one of API\u2019s earliest and most successful initiatives. API standards primarily focus on specifying equipment-related requirements.<\/p>","protected":false},"featured_media":1360,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[37],"product_tag":[],"class_list":{"0":"post-838","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-vertical-storage-tank-design","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/www.shijievt.com\/ms\/wp-json\/wp\/v2\/product\/838","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.shijievt.com\/ms\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.shijievt.com\/ms\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.shijievt.com\/ms\/wp-json\/wp\/v2\/comments?post=838"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.shijievt.com\/ms\/wp-json\/wp\/v2\/media\/1360"}],"wp:attachment":[{"href":"https:\/\/www.shijievt.com\/ms\/wp-json\/wp\/v2\/media?parent=838"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.shijievt.com\/ms\/wp-json\/wp\/v2\/product_brand?post=838"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.shijievt.com\/ms\/wp-json\/wp\/v2\/product_cat?post=838"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.shijievt.com\/ms\/wp-json\/wp\/v2\/product_tag?post=838"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}