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Compressor Rod-Packing & Seal Vent

Methane · Recip + Centrifugal · EPA Subpart W §98.233

Reciprocating

Recip count

—

Cylinders per

—

Hours since packing replace

hr

Replace cost

$/cyl

Centrifugal

Centrifugal count

—

Seal type

Operation & Economics

Operating hours/yr

hr/yr

Gas CH₄

%

Gas price

$/mscf

GWP CH₄

—

📚 Learn the Theory

Reciprocating rod-packing leakage and centrifugal compressor seal vents: EPA Subpart W §98.233 emission factors and replacement economics.

Read Engineering Guide →

Engineering Basis

EPA Subpart W §98.233 emission factors: recip 11.5 scf/min/cyl (aged), centrifugal 24.7 (wet) / 1.6 (dry).
EPA OOOOa requires rod-packing replacement every 26,000 hours or 36 months.
Wet→dry seal conversion CAPEX typically $300-500k per centrifugal compressor.
For Subpart W reporting: prefer measured vent rates over default factors.