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10 Cards in this Set
- Front
- Back
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Pressure going into then hospital is
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50 psi
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Pressure reducing valve
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reduces pressure from 50 psi
s |
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Central Piping System
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Standards set by NFPA
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ASSS
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-for high pressure cylinders
-threaded and counterthreaded for a given gas's density |
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DISS
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-for lower pressure systems
-threshold is 200 psi |
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ASSS
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Might use external or internal threading
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High Pressure Reducing Valves
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1)May be single stage or multiple stage
2)redeuced pressure may be preset or adjustable |
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Pressure reduction
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realtes to adjusting the tension on a spring inside the reduction valve.
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Flowmeters
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Have flow restrictors that aren't adjustable
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Flow restrictors
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Deliver a specific but unvariable flow
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