API 6D/API 608 Ball Valve

API 6D “specification for piping and pipeline valves” and API 608 ” specification for flanged, threaded and welded metal ball valves” provide detailed requirements for ball valves in terms of structural design, performance requirements, test methods and other aspects. API 6D and API 608 constitute together a complete specification of ball valves in the petrochemical field, and each has its own characteristics according to different working conditions and requirements. API 608 adds the requirements like design, operation and performance based on ASME B16.34 “flanged, threaded and welded valves for general industrial use”. API 6D is more used for long-distance pipeline engineering and specified the differs from API 608 in terms of structure and function

API 608 ball valve is used for the petrochemical industry pipeline media opening or cutting off, which is under the environment such as high temperature and high pressure, inflammable and explosive, corrosive and continuous operation, where require more requirements on valve sealing, material, corrosion. API 608 ball valve has a fixed ball structure and floating ball structure and mainly floating ball structure

API 6D ball valves are specially used for long-distance pipeline transportation. In addition to switching on or cutting off the medium, the ball valve under this standard also has functions such as blowdown, emptying, Over pressure relief, grease injection and on-line leak detection. API 6D ball valves are almost fixed ball construction. In consideration of environmental protection and economy, the blowdown/empty-out of the pipeline ball valve is more important

INDUSTRY TYPES USING API608/6D BALL VALVES

• GAS PLANTS
• PIPELINES
• CHEMICAL MANUFACTURING
• UPSTREAM/MIDSTREAM HYDROCARBON PROCESSING