Heatless Regenerative Dryer
Next Air’s HDR Rental Heatless Series dryers are engineered for exceptional durability and mobility no matter the application, to provide temporary and reliable dry air under harsh conditions in any environment. The HDR is equipped with multiple stages of filtration and a twin tower regenerative dryer for compressed air dehydration. Packaged on a portable heavy-duty skid, these dryers ensure high quality compressed air in accordance with ISO8573-1, the international standard for compressed air quality.
With global standardization and rental applications in mind, Next’s HDR series dryers have incorporated standard design features that are often considered option adders. The HDR comes standard with mounted pre & post-filtration and stainless-steel control air tubing.
The design pressure of its pressure vessels is rated at (200 psig / 13.7 bar) with the industry standard being (150 Psig /10.3 Bar). In addition, Next’s pressure vessels on models (600 to-2000+cfm) are partnered with an ASME VIII and CRN Certification. The UL and CUL-certified electrical panels are protected by a NEMA 4x Stainless steel electrical enclosure. The HDR series is also accompanied by a rugged draggle skid packaged within a 3-sided caged enclosure. Next’s comprehensive option adders allow the dryer to meet any application it is dealt with. Offering dewpoint readings of-40 °F/ °C to-100 °F/-73.3°C
- Features & Benefits
- Specifications
HDR Series Features
- 4-sided fork pocket access built on rugged draggable skid
- Horizontal Purge Exhaust Mufflers
- Mounted Filtration
- Tower Pressure Gauges
- NHDC-2200, Robust Digital Controller
- Stainless Steel Desiccant Strainers
- UL, CUL, Electrical Certification
- Counter-Current Re-Pressurization
- ASME, CRN Code Welded Pressure Vessel Certification
- NEMA 4X Stainless steel Electrical Enclosure
- Stainless Steel Angle Body Valves / Butterfly Valves
- Field Adjustable Drying Cycle Time (10,15min)
- Tower Pressure Relief Valves
- Separate Drain and Fill Port
- Purge Adjustment Valve
- Fail Safe Design
- Purge Flow Indicator
- Common Alarm Output
- 4-Sided Steel Rugged Protective Cage Enclosure
- Optimal tower size for low velocities, high contact time and minimal desiccant fluidization
- Liquid Filled Pressure Gauges
- Marine Grade 2 Part Epoxy Primer & Paint
- ASME, CRN Code Welded Pressure Vessel Certification
NHDC-2200 Controller
- Digital Text Display
- 4-line membrane interface with individual process stage indicator lights
- Run info screen with stage indicator lights
- Power On / Off Switch
- Run Info Screen
- Dryer Run Time and Cycle Count
- Dry Alarm Contact
- Filter Militance Timer
- User selectable Cycle Times:
- 6 Minutes optional
- 10 Minutes standard
- 15 Minutes standard
- 5 Output Connections
- Digital Dew Point Control DCC Active / Inactive Switch
| HDR Series Dryer | ||||||
| Model | Flow Rate | Port Size | Weight(LBS) | Depth (in) | Width (in) | Height (in) |
| HRD-600 | 600CFM | 2"NPT | 2800lbs | 50 | 50 | 90 |
| HDR-800 | 800CFM | 3"FLG | 3600lbs | 70 | 70 | 94 |
| HDR-900 | 900CFM | 3"FLG | 3750lbs | 102 | 75 | 95 |
| HDR-1000 | 1000CFM | 3"FLG | 4500lbs | 102 | 75 | 95 |
| HRD-1400 | 1400CFM | 3"FLG | 5200lbs | 120 | 80 | 95 |
| HRD-1600 | 1600CFM | 3"FLG | 5800lbs | 120 | 80 | 95 |
| HDR+ | 2000+ | " | " | " | " | " |
| Capacity Correction Factors For Differing Operating Pressure | |||||||||||||||
| Operating Pressure(PSIG) | 50 | 60 | 70 | 80 | 90 | 100 | 110 | 120 | 130 | 140 | 150 | 175 | 200 | 225 | 250 |
| Operating Pressure(BAR) | 3.4 | 4.1 | 4.8 | 5.5 | 6.2 | 6.2 | 7.5 | 8.2 | 8.9 | 9.6 | 10.3 | 12.0 | 13.7 | 15.5 | 17.2 |
| Correction Factor(F1) | 0.56 | 0.65 | 0.74 | 0.83 | 0.91 | 1.00 | 1.04 | 1.08 | 1.12 | 1.16 | 1.2 | 1.29 | 1.37 | 1.45 | 1.52 |
| Capacity Correction Factors For Differing Inlet Air Temperature | |||||||||||||||
| Inlet Air Temperature °F | 70 | 80 | 90 | 100 | 105 | 110 | 115 | 120 | 130 | ||||||
| Inlet Air Temperature °C | 21 | 26 | 32 | 37 | 40 | 43.3 | 46 | 48 | 54 | ||||||
| Correction Factor(F1) | 1.12 | 1.1 | 1.06 | 1 | 0.93 | 0.86 | 0.8 | 0.75 | 0.62 | ||||||
*Additional Flows Available Upon Request
Air Flow Capacity = Operating Pressure x Inlet Air Temperature
Additional Flows available on request.
Correction Sample:
If a compressor delivers 500 scfm at 120 psi pressure with a 120°F inlet temperature, please choose your dryer model as follows:
(500 scfm / 1.08 / .75) =617 scfm, therefore an HDR-600 would be needed.