SHA Series - Heatless Modular Desiccant Air Dryers

Pneumatic Products’ SHA Series Modular Desiccant Air Dryers protect moisture sensitive applications requiring low pressure dew points. Delivers dew points of ISO 8573-1: 2010 Class 1 (-94°F, -70°C) and Class 2 (-40°F, -40°C) with flow rates of 7 to 40 scfm (12 to 68 nm3/h). Critical applications include labs, hospitals, pharmaceutical manufacturing and other high-tech installations.
The SHA Series incorporate a time proven design, with superior features and reliability, in a compact and easy to install package. Standard features include:

TABLE 1 - INLET & PURGE FLOWS @ 100 PSIG 

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

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.