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10 Cards in this Set
- Front
- Back
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Relief valve hydro is to what pressure? |
150% max op pressure |
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What is used as fluid for Hydrostatic relief test? |
filtered Grade B water. |
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What must be on the purchase order for relief valve? |
required set pressure. |
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Hydro test info must include what? |
date of test, who conducted the test, required test pressure, actual test pressure, Pass fail information, Signature of who conducted the test. |
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Cracking pressure of a relief valve is normally? |
110% of max system operating pressure. |
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Relief must reseat when? |
once above max operating pressure. |
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Are pipe threads generally allowed on Oxygen systems? |
NO |
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Teflon tape is not allowed to be used on systems with operation pressures above what PSIG? |
1500 psig |
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How often are Relief valves tested and tagged? |
36 Months |
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For Composite flasks what is the rupture disc replacement periodicity? Who can replace them on 3A and 3AA cyclinders? |
36 months. Only DOT certified personell. |
