API-RP-576

API ICP Self Study Notes API ICP Self Study Notes

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4.9.2 Applications Pressure- and/or vacuum-vent valves are normally used to protect atmospheric and low-pressure storage tanks against a pressure large enough to damage the tank. Single units composed of both pressure-vent valves and vacuum-vent valves are also known as conservation-vent valves, and are normally used on atmospheric storage tanks containing materials with a flash point below 100ºF (38ºC). However, they may also be used on tanks storing heavier oils (see API 2000). Fion Zhnag/ Charlie Chong

Fion Zhnag/ Charlie Chong

Fion Zhnag/ Charlie Chong

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