API Standard
API RP 615: Valve Selection Guide
API RP 615 provides general guidance on valve selection for the hydrocarbon processing industry (HPI), which includes refineries and petrochemical, chemical, and liquefie...
API RP 591: Process Valve Qualification Procedure
API RP 591 provides recommendations for evaluation of a manufacturer’s valve construction and quality management system for the purpose of determining a manufacturer’s ca...
API RP 621: Reconditioning of Metallic Gate, Globe, and Check Valves
API RECOMMENDED PRACTICE 621 provides guidelines for reconditioning heavy wall (API 600, API 623, and API 594 type) carbon steel, ferritic alloy (up to 9 % Cr), stainless...
API 624: Type Testing of Rising Stem Valves for Fugitive Emissions
API 624 standard specifies the requirements and acceptance criteria (100 ppmv) for fugitive emission type testing of rising stem valve and rising-rotating stem valves equ...
API 6DSS: Specification for Subsea Pipeline Valves
API 6DSS specification defines the requirements for the design, manufacturing, quality control, assembly, testing, and documentation of ball, check, gate, plug, and axial...
API 622: Type Testing of Process Valve Packing for Fugitive Emissions
API 622 standard specifies the requirements for comparative testing of valve stem packing for process applications where fugitive emissions are a consideration....
API 6FA: Standard for Fire Test of Valves
API 6FA standard establishes the requirements for testing and evaluating the pressure-containing performance of API 6A and API 6D valves when exposed to fire....
API 641: Type Testing of Quarter turn Valves for Fugitive Emissions
API 641 standard specifies the requirements and acceptance criteria for fugitive emission type testing of quarter- turn valves. The type testing requirements contained he...
API 599: Metal Plug Valves - Flanged, Threaded, and Welding Ends
API 599 standard specifes the requirements for quarter turn metal plug valves, including the lift plug type, forthe petroleum, petrochemical, and industrial applications....
API 603: Corrosion-resistant, Bolted Bonnet Gate Valves—Flanged and Butt-welding Ends
API 603 standard specifies the requirements for corrosion-resistant bolted bonnet gate valves meeting the requirements of Standard Class, ASME B16.34 and having full port...
API 609: Butterfy Valves: Double-fanged, Lug- and Wafer-type, and Butt-welding Ends
API 609 standard covers design, materials, face-to-face dimensions, pressure-temperature ratings, and examination, inspection, and test requirements for gray iron, ductil...
API 608: Metal Ball Valves-Flanged, Threaded, and Welding Ends
API 608 standard specifes the requirements for metal ball valves suitable for petroleum, petrochemical, and industrial applications, with flanged, butt-welding, socket-we...
API 607: Fire Test for Quarter-turn Valves
API 607 standard specifies fire type-testing requirements and a fire type-test method for confirming the pressure-containing capability of quarter-turn valves and other v...
API 602: Gate, Globe, and Check Valves for Sizes DN 100 and Smaller
API 602 standard specifies the requirements for a series of compact gate, globe and check valves for petroleum and natural gas industry applications....
API 598: Valve Inspection and Testing
API 598 standard covers inspection, examination, supplementary examinations, and pressure test requirements for resilient-seated, nonmetallic-seated (e.g. ceramic), and m...
API 600: Steel Gate Valves-Flanged and Butt-welding Ends, Bolted Bonnets
API 600 standard specifies the requirements for a heavy-duty series of bolted bonnet steel gate valves for petroleum refinery and related applications where corrosion, er...
API 594: Check Valves- Flanged, Lug, Wafer, and Butt-welding
API 594 standard covers the design, material, face-to-face dimensions, pressure-temperature ratings, and examination, inspection, and test requirements for two types of c...
API 6D: Specification for Valves in the petroleum and natural gas industries
API 6D defines the requirements for the design, manufacturing, materials, welding, quality control, assembly, testing, marking, documentation and process controls of axia...
API 623: Steel Globe Valves Flanged and Butt-welding Ends, Bolted Bonnets
API 623 standard specifies the requirements for a heavy-duty series of bolted bonnet steel globe valves for petroleum refinery and related applications....