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Equipment components | Emission factor (scf/hour/component) | |
---|---|---|
If you survey using any of the methods in §98.234(a)(1) through (6) | If you survey using Method 21 as specified in §98.234(a)(7) | |
1 For multi-phase flow that includes gas, use the gas service emission factors. 2The open-ended lines component type includes blowdown valve and isolation valve leaks emitted through the blowdown vent stack for centrifugal and reciprocating compressors. 3“Others” category includes any equipment leak emission point not specifically listed in this table, as specified in §98.232(c)(21) and (j)(10). 4Hydrocarbon liquids greater than or equal to 20°API are considered “light crude.” 5 Hydrocarbon liquids less than 20°API are considered “heavy crude.” | ||
Leaker Emission Factors—All Components, Gas Service1 | ||
Valve | 4.9 | 3.5 |
Flange | 4.1 | 2.2 |
Connector (other) | 1.3 | 0.8 |
Open-Ended Line 2 | 2.8 | 1.9 |
Pressure Relief Valve | 4.5 | 2.8 |
Pump Seal | 3.7 | 1.4 |
Other 3 | 4.5 | 2.8 |
Leaker Emission Factors—All Components, Light Crude Service4 | ||
Valve | 3.2 | 2.2 |
Flange | 2.7 | 1.4 |
Connector (other) | 1.0 | 0.6 |
Open-Ended Line | 1.6 | 1.1 |
Pump | 3.7 | 2.6 |
Agitator Seal | 3.7 | 2.6 |
Other 3 | 3.1 | 2.0 |
Leaker Emission Factors—All Components, Heavy Crude Service5 | ||
Valve | 3.2 | 2.2 |
Flange | 2.7 | 1.4 |
Connector (other) | 1.0 | 0.6 |
Open-Ended Line | 1.6 | 1.1 |
Pump | 3.7 | 2.6 |
Agitator Seal | 3.7 | 2.6 |
Other 3 | 3.1 | 2.0 |
[81 FR 86516, Nov. 30, 2016]