Descripción
TABLE 1 – INLET & PURGE FLOWS @ 100 PSIG
| Model | INLET FLOW RATING1 SCFM (NM3/H) |
PURGE FLOW2 SCFM (NM³/H) |
IN/OUT CONNECTIONS |
||||||
|---|---|---|---|---|---|---|---|---|---|
| -40°F | (-40°C) | -94°F | (-70°C) | Average | Maximum | IN | |||
| HSHD-7 | 7 | 12 | 5 | 8 | 1.5 | 2.3 | 1.8 | 2.7 | 1/2″ NPT |
| HSHD-13 | 13 | 22 | 9 | 15 | 2.7 | 4.5 | 3.7 | 5.1 | 1/2″ NPT |
| HSHD-18 | 18 | 31 | 12 | 20 | 3.7 | 5.7 | 4.4 | 6.5 | 1/2″ NPT |
| HSHD-21 | 21 | 36 | 14 | 23.5 | 4.6 | 7.2 | 5.4 | 8.1 | 1/2″ NPT |
| HSHD-27 | 27 | 46 | 18 | 30.5 | 5.3 | 8.3 | 6.2 | 9.2 | 1/2″ NPT |
| HSHD-40 | 40 | 68 | 27 | 45.5 | 9.7 | 15 | 11.6 | 16.1 | 1/2″ NPT |
1 Inlet flows are established in accordance with CAGI (Compressed Air and Gas Institute) standard ADF-200, Dual Stage Regenerative Desiccant Compressed Air Dryers – Methods for Testing and Rating. Conditions for rating dryers are: inlet pressure – 100 psig (7 kg/cm2); inlet temperature – saturated at 100°F (38°C).
2 Average Purge Flow is the total amount of air used to purge and repressurize off-stream towers averaged over the cycle time. Maximum Purge Flow is the flow rate through the off-stream tower during that portion of the cycle the purge/ repressurization valve is open.
TABLE 2 – INLET & PURGE FLOW CORRECTION FACTORS
| INLET PRESSURE |
psig | 50 | 70 | 90 | 100 | 110 | 120 | 130 | 150 |
|---|---|---|---|---|---|---|---|---|---|
| kg/cm2 | 3.5 | 4.9 | 6.3 | 7 | 7.7 | 8.4 | 9.1 | 10.5 | |
| MULTIPLIER A | 0.31 | 0.54 | 0.83 | 1.00 | 1.09 | 1.17 | 1.26 | 1.44 | |
| MULTIPLIER B | 0.55 | 0.73 | 0.91 | 1.00 | 1.09 | 1.17 | 1.26 | 1.44 | |
CAPACITY CORRECTION FACTORS
- To determine maximum inlet flow at inlet pressures other than 100 psig (7 kg/cm2), multiply inlet flow from Table 1 by multiplier A from Table 2 that corresponds to system pressure at inlet of dryer.
- To determine purge flow at inlet pressures other than 100 psig (7 kg/cm2), multiply purge flow at 100 psig (7 kg/cm2), from Table 1 by multiplier B from Table 2 that corresponds to system pressure at inlet of dryer.
- To determine outlet flow capacity, subtract purge flow from inlet flow.
