Tanks are typically found in Refinery tank farms, Terminals, Pipelines, and other process facilities use these tanks. A maximum of the most common welded steel tanks used in industry are designed following API 650. F Maximum Pressure The maximum pressure for API 650 tanks is 2.5 psig (pounds per square inch gage) or 17.2 Kpa The maximum pressure for API 620 tanks are 15 psig Materials Common materials for API 650 tanks are Carbon Steel, Austenitic Stainless Steel, Duplex Stainless Steel, Aluminum API 620 tanks are usually made of Carbon Steel, Austenitic Stainless Steel, and Nickel Alloys (Low Temp only) Uses/Industries API 650 tanks are used for Oil, Gas, Chemical, Water, and Bio-Fuel storage. F The usual temperature range for API 620 tanks is -325 Deg. Temperature Range The usual temperature range for API-650 tanks is -40 Deg. API 620 tanks are Field Erected Tank Sizes Any Tank size larger than 300 ft. Shop/Field Erected These tanks can be Shop (Appendix J) or Field Erected. API 620 tanks must have a single vertical axis of revolution. Our work helps the industry invent and manufacture superior products consistently, provide critical services, ensure fairness in the marketplace for businesses and consumers alike, and promotes the acceptance of products and practices by industry and governments globally as outlined in the new API Standards: International Usage and Deployment.Parameter API 650 Tanks API 620 Tanks Description API 650 provides guidelines for Welded Steel Tanks for Oil Storage API 620 provides guidelines Design and Construction of Large, Low-Pressure Storage Tanks Configuration The configuration of API 650 tanks is Ground-Supported Bottom, Open or Closed Roof API 620 tanks can be of any configuration that has a single centered, vertical axis of revolution Configuration For API 650 tanks, the entire tank bottom has to be uniformly supported.

Since 1924, the American Petroleum Institute has been a cornerstone in establishing and maintaining standards for the worldwide oil and natural gas industry. In its first 100 years, API has developed more than 800 standards to enhance operational safety, environmental protection and sustainability across the industry, especially through these standards being adopted globally.ĪPI standards are developed under API’s American National Standards Institute accredited process, ensuring that the API standards are recognized not only for their technical rigor but also their third-party accreditation which facilitates acceptance by state, federal, and increasingly international regulators. API was formed in 1919 as a standards-setting organization and is the global leader in convening subject matter experts across segments to establish, maintain, and distribute consensus standards for the oil and gas industry.

Api 650 xls