Altec AIR HR7 Heatless Desiccant Air Dryer – 50 SCFM
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Description
Altec AIR HR7 Heatless Desiccant Air Dryer – 50 SCFM
Product Description
The Altec AIR HR7 Heatless Desiccant Air Dryer delivers dependable ultra-dry compressed air for systems up to 50 SCFM, making it an ideal solution for smaller industrial compressed air systems and moisture-sensitive applications. Built with a twin-tower regenerative drying system, the HR7 continuously removes moisture from compressed air while regenerating the desiccant in the offline tower, ensuring consistent and reliable drying performance.
With a standard -40°F pressure dew point, the HR7 protects pneumatic equipment, instrumentation, spray systems, and manufacturing processes from moisture contamination that can lead to corrosion, freezing, and costly downtime. The compact and durable design makes it perfect for installation in equipment rooms, mechanical spaces, or directly at the point of use.
The HR7 is designed for reliability and long service life. Its spring-loaded desiccant beds help extend desiccant life, while the fully re-pressurizing design ensures stable outlet pressure and airflow during tower switching. The dryer also features a NEMA 4X electrical rating, making it suitable for demanding industrial environments where durability and protection are critical.
This dryer can be configured to match your compressed air system with optional moisture indicators and tower pressure gauges, allowing operators to monitor system performance and verify proper dryer operation.
At Compressed Air Advisors Online, America's choice for compressed air solutions, we help customers across the country select the right compressed air equipment for their applications. Whether you're upgrading an existing system or installing a new compressed air setup, our team provides the expertise and support to ensure your air stays clean, dry, and reliable.
Key Features
• 50 SCFM Capacity – Ideal for smaller industrial compressed air systems
• Twin Tower Heatless Desiccant Design – Continuous drying with automatic regeneration
• Standard -40°F Pressure Dew Point – Protects equipment and processes from moisture
• Spring-Loaded Desiccant Beds – Helps extend desiccant life and maintain performance
• Fully Re-Pressurizing Design – Maintains steady outlet pressure and airflow
• Compact Footprint – Easy installation in tight mechanical spaces
• NEMA 4X Electrical Rating – Built for industrial environments
• Reliable Twin-Tower Operation – Continuous dry air production
Available Options
The HR7 dryer can be configured with several options to match your application requirements:
• Moisture Indicator – Visual confirmation of dryer performance
• Tower Pressure Gauges – Allows monitoring of tower operating pressure
• Voltage Options
• 115 Volt / 1 Phase
• 230 Volt / 1 Phase
Technical Specifications
Model: HR7
Dryer Type: Heatless Twin Tower Desiccant Dryer
Maximum Inlet Flow: 50 SCFM @ 100 PSIG
Outlet Flow: 39.2 SCFM @ 100 PSIG
Purge Flow: 10.8 SCFM @ 100 PSIG
Standard Pressure Dew Point: -40°F
Maximum Working Pressure: 150 PSIG
Maximum Inlet Temperature: 120°F
Inlet / Outlet Connection: 1/2" NPT
Electrical Options: 115V / 1-Phase or 230V / 1-Phase
Dimensions: 46.3" Height × 10.0" Width × 7.0" Depth
Weight: 65 lbs
Why Buy From Compressed Air Advisors Online?
When you purchase the Altec AIR HR7 Desiccant Dryer from Compressed Air Advisors Online, you are working with a nationwide compressed air partner trusted by maintenance managers, plant engineers, and shop owners across the United States.
We provide:
• Expert compressed air system guidance
• Premium manufacturers and reliable equipment
• Fast nationwide shipping
• Real technical support from compressed air specialists
Compressed Air Advisors Online has the experience and product selection to ensure your compressed air system performs reliably for years to come.

