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FIRESAFE AND API 607
Hopefully somebody can help me answer this question. If it is necessary to use a fire safe ball valve (approved to API 607) on a gas tank as a second closure what approval is required for the 1st closure valve (internal foot valve) if any? If the the internal footvalve does not need to be...- Stevedsn007
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- Replies: 3
- Forum: Valve engineering
