API 608 Ball Valve

API 608 is an industry standard developed by the American Petroleum Institute (API) for flanged, threaded and welded metal ball valves. It is designed for petroleum, chemical and industrial pipeline systems and is suitable for corrosive and non-corrosive media and high temperature and high pressure conditions.

‌Core specifications‌:
‌Design standard‌: API 608 (structural length complies with ASME B16.10, connection size complies with ASME B16.5);
‌Test standard‌: API 598 (sealing, strength and durability test);
‌Fireproof design‌: complies with API 607 ​​to ensure the sealing reliability of the valve under fire conditions.

Core features‌
‌Structure and performance‌

‌Sealing design‌: Adopt floating ball or fixed ball structure, outlet end sealing (mostly floating ball), leakage rate ≤API 598 standard;
‌Blow-out proof valve stem‌: The valve stem and ball adopt anti-slip structure to prevent the valve stem from popping out due to high pressure medium impact;
‌Anti-static design‌: Built-in static electricity export device to avoid static electricity accumulation caused by medium flow.
‌Adaptability‌

‌Media type‌: water, steam, oil, acidic and alkaline fluids (such as nitric acid, acetic acid) and particle-containing media; ‌Pressure level‌: Class 150~800 (PN16~PN100), suitable for medium and low pressure process pipelines; ‌Temperature range‌: conventional models -28℃~300℃, special materials can be extended to higher temperatures.

 

api 608 ball valve

 

Applications ‌
‌Petrochemical industry‌: oil refining equipment, acid and alkali medium transportation pipelines (such as chlor-alkali process); ‌

Power system‌: steam and cooling water pipeline flow control; ‌

Environmental protection engineering‌: sewage treatment and solid slurry cutoff.

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