国际阀门标准(外文版)

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国际阀门标准(外文版)

• API SPEC 6D
Specification for Pipeline Valves. API Specification 6D is an adoption of ISO 14313: 1999， Petroleum and Natural Gas Industries-Pipeline Transportation Systems-Pipeline Valves. This International Standard specifies requirements and gives recommendations for the design， manufacturing， testing and documentation of ball， check， gate and plug valves for application in pipeline systems.
• API 526
Flanged Steel Pressure Relief Valves. The standard is a purchase specification for flanged steel pressure relief valves. Basic requirements are given for direct spring-loaded pressure relief valves and pilot-operated pressure relief valves as follows: orifice designation and area; valve size and pressure rating， inlet and outlet; materials; pressure-temperature limits; and center-to-face dimensions， inlet and outlet.
• API 527
Seat Tightness of Pressure Relief Valves R(2002). Describes methods of determining the seat tightness of metal- and soft-seated pressure relief valves， including those of conventional， bellows， and pilot-operated designs.
• ANSI/API STD 594
Check Valves: Flanged， Lug， Wafer and Butt-welding. API Standard 594 covers design， material， face-to-face dimensions， pressure-temperature ratings， and examination， inspection， and test requirements for two types of check valves.
• API 598
Valve Inspection and Testing. The standard covers inspection， supplementary examination， and pressure test requirements for both resilient-seated and metal-to-metal seated gate， globe， plug， ball， check， and butterfly valves. Pertains to inspection by the purchaser and to any supplementary examinations the purchaser may require at the valve manufacturers plant.