The Castair RDD40.030 is a refrigerated compressed air dryer from the Castair RDD40 series. The .030 suffix identifies the specific capacity or configuration variant within the RDD40 line. Castair RDD series dryers are engineered for 37°F pressure dew point performance — removing the moisture from compressed air that causes tool failures, spray finish defects, pneumatic component corrosion, and rust inside air distribution piping.
The RDD40 series dryers share the same proven Castair refrigeration design: stainless steel heat exchanger, environmentally compliant R134a or R407c refrigerant, automatic demand drain, and a simple dew point indicator with no computer controls to fail. Call us at 866-217-0063 to confirm the exact CFM capacity, electrical specifications, and connection sizes for the RDD40.030 before ordering.
Key Features — Castair RDD40 Series
- Pressure dew point: 37°F — maintains near-dry air at the point of expansion under rated conditions
- Refrigerant: R134a or R407c (environmentally compliant)
- Heat exchanger: Stainless steel, dual-function single-body design
- Automatic demand drain: Only cycles when condensate is present — conserves compressed air vs. timer drains
- Dew point indicator: Simple visual indicator, no computer logic or programming
- Quick-connect refrigerant port: Field recharge without full disassembly
- Maximum inlet pressure: 232 PSIG
- Certifications: UL listed
What's in the Box
- Castair RDD40.030 refrigerated compressed air dryer unit
- Power cord
- Refrigerant pre-charged at factory
A properly sized pre-filter upstream is required for warranty coverage.
Technical Specifications
- Part Number: RDD40.030
- Series: Castair RDD40 refrigerated dryer
- Pressure Dew Point: 37°F
- Maximum Inlet Pressure: 232 PSIG
- Refrigerant: R134a / R407c
- Drain: Automatic, demand-based
- CFM capacity, voltage, amperage, connection size, weight, dimensions: Contact us — 866-217-0063
- Certifications: UL Listed
Why Buy From Air Compressor Factory Direct?
We specialize in Castair compressed air equipment. We can confirm the RDD40.030 specifications and help you verify it is the right dryer for your compressor output and air demand. Free shipping on qualifying orders, free pre-sale technical support, full Castair manufacturer warranty.
Call 866-217-0063 for quick answers and help!
