R & ADR Series

Pioneer Dryers are available for Vacuum, Blower, and High Pressure applications up to 10,000 PSIG (689.7 BAR G), with or without air-air heat exchangers.

Selection Considerations

1. R or ADR Series

Selecting a PIONEER R Series or an ADR Series Refrigerant Dryer depends on whether your compressed air system has an aftercooler.

A) R Series - designed for use with an aftercooler

In accordance with the NFPA and CAGI standards, the following design conditions apply:

• 100°F/37.8°C inlet
• 100 PSIG/6.89 BAR G inlet
• 100°F/37.8°C ambient
• 5 PSIG/0.35 BAR G maximum pressure drop at rated flow
• 35°F/2°C range pressure dew point

Example: Calculate the capacity of model R500A/W at 90°F/32.2°C inlet temperature, 120 PSIG/8.3 BAR G inlet pressure and 100°F/37.8°C ambient temperature.

Actual capacity = nominal capacity x TC x PC x AC

=500 x 1.15 x 1.04 x 1.0

=598 SCFM/1017 NM3/HR

B) ADR Series (Aftercooler/Dryer/Reheater combination system)

ADR systems are designed for compressed air systems which do not have a previously installed aftercooler. They perform three functions: aftercooling, air drying, and reheating of compressed air.
The inlet temperature to an ADR system should be 250°F/121°C or lower. The principle advantage of an ADR system is its capacity to reheat the air which increases its volume. This is achieved by using the warm incoming air to reheat the outgoing dry air to within approximately 40°F/ 22.2°C of the incoming air.

The Mr. Goodaire options are recommended with PIONEER R and ADR Series Dryers.

2. Maximum Air Requirement 

3. Pressure Dew Point

Although 50°F/10°C PDP may be adequate for your current needs, a 35°F/2°C PDP air drying system is recommended for peak performance and growth.

 4. Inlet Pressure

Check R Series Ratings table or ADR Series Ratings table for maximum working pressures. Higher pressure dryers are available for pressures up to 10,000 PSIG/689.7 BAR G.

 5. Ambient Temperature

Air cooled-type systems are designed for a temperature range of 50°F/10°C to 110°F/43.3°C. Specially designed air cooled systems are available for differing conditions. 

6. Location

For dirty locations, ambient filters as well as water-cooled condenser-type systems are available.

7. Electrical Requirement

NEMA 1 is standard. NEMA 4, 7, or 12 and non-standard voltages are available.

 8. Cooling Requirement for Air Dryer Condensers and Heat Recovery

The Heat rejection and Water requirements table will be helpful in choosing between air-cooled and water-cooled systems and in selecting the proper location. When properly installed, PIONEER dryers can be an effective source of heat recovery.

SELECTION GUIDE