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17 Cards in this Set
- Front
- Back
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How do you convert water column to ounces (oz/in^2) |
Multiply by 0.578 |
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How do you convert water column to pounds (psig) |
Multiply by 0.0361 |
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Where is line pressure taken |
Downstream of service reg and upstream of appliance reg with no gas flow |
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Where is standing pressure taken |
Downstream of service reg and upstream of appliance reg with only the pilot burning |
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Where is operating pressure taken? |
Downstream of service reg and upstream of appliance reg with appliance main burner operating |
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What is differential pressure |
Difference between standing pressure and operating pressure |
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Where is manifold pressure taken |
Downstream of appliance reg while main burner is operating |
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What is the venturi effect |
The faster the flow, the lower the pressure |
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What is gauge pressure |
Pressure in a closed system read 0 at atmospheric pressure |
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What is absolute pressure |
Gauge pressure added to atmospheric pressure |
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What is 10 psig in psia |
24.7 |
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What happens to atmospheric pressure in relation to elevation |
Psi drops 0.5 for every 1000 ft increase |
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What is inversely proportional to pressure loss |
Pipe size |
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Who's responsibility is it to ensure all pressure tests are preformed and verified |
The installer so probably you |
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Which two tests should be preformed at the same place? |
Standing and operating pressure, ideally the dirt pocket of the furthest appliance |
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Manifold pressure for natural gas |
3.5 in wc or manufacturers specs |
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Manifold pressure for propane |
11 in wc or manufacturers specs |
