Compressed Air
The following table may be used as a general guide for selecting the compressed air pipe size, based on a compressor discharge pressure of 100 psig and a maximum 5% pressure drop. Equivalent length comprises the straight runs plus the sum of the equivalent pipe lengths of all fittings.
| Flow rate (SCFM) | 100 ft | 300 ft | 500 ft | 1000 ft | 1500 ft |
|---|---|---|---|---|---|
| < 50 | 1" | 1½" | 1½" | 1½" | 1½" |
| 50-100 | 1½" | 1½" | 1½" | 2" | 2" |
| 100-150 | 1½" | 2" | 2" | 2½" | 2½" |
| 150-200 | 1½" | 2" | 2" | 2½" | 3" |
| 200-250 | 2" | 2" | 2½" | 3" | 3" |
| 250-300 | 2" | 2½" | 2½" | 3" | 3" |
Compressed Air Quality Requirements
The compressed air must be clean, dry, and oil-free. Particulates in the compressed air can wear out the bags from the inside due to the high-velocity air pulse. Condensation in the pipeline may freeze in extreme winter conditions and can, along with oil, contribute to bag blinding.
Air Quality Standards
- Dew Point: 20ºF below the minimum ambient temperature, or 35ºF, whichever is lower
- Particulate size: 3 microns maximum
- Oil concentration: < 1 PPM
BCE Recommendation: Contact your air compressor supplier for the proper particle, moisture, and oil filters to be included in the air line to meet these requirements and ensure optimal baghouse performance and longevity.