Deltech HYDROGARD® HGD-750 Non-cycling Refrigerated Air Dryer

The HYDROGARD® refrigerated air dryers offer a capacity range of 100-3000 scfm. The HGD series is optimal for continuous or peak duty operation. It is reliable and comes fully loaded with many features such as integral moisture separators/filters and user friendly interface with 10 language communications.  Also contains an advanced 24 volt control package that saves energy.

HYDROGARD® Refrigerated Air Dryers optimize productivity and profitability by delivering stable dew point contol. The HYDROGARD® series provides premium performance, advanced heat transfer technology and integral 3 micron rated filtration.

Hydrogard dryers meet the globally recognized ISO 8573.1 quality classes for compressed air treatment. Mainenance costs are reduced, downtime is minimized as improved air quality extends the service life of pneumatically operated components and production equipment.

All-inclusive HGD drying systems eliminate the added purchase costs and installation complexity required by separate filtration. No need to pipe extra filters into the air system and then pipe away the condensate - HGD simply integrates it all into one clean package.

Dimensions & Specifications

If you have questions on how to properly select a compressed air dryer, contact our knowledgeable customer service toll-free: 866-650-1937 or send us an email request.

1. Rated Flow Capacity - Conditions for rating dryers are in accordance with CAGI (Compressed Air and GasInstitute) Standard ADF100 working conditions: inlet air at 100 psig (7 kg/cm2) and 100°F (38°C) saturated,ambient air at 100°F (38°C), operating on 60 Hz power supply
2. At 35°F (2°C) evaporator and 100°F (38°C) ambient
3. BSP connections and DIN flanges available
4. Total Pressure Drop with Integral 3 micron Filtration (psig)

• The HYDROGARD emm™ controller is standard on models HGD200-3000
• Refrigerants utilized on models HGD100-HGD750: R-134a, models HGD1000-HGD3000: R-404a
• Models HGD100-150: standard internal mechanical drain {dryer MOP 250 psig (17.6 kg/cm2) optional electric timed drain {dryer MOP 200 psig (14 kg/cm2)
• Models HGD600-3000 utilize electric demand drains as standard {dryer MOP 232 psig (16 kg/cm2)}
• Panel mounted emergency shutdown switch standard on models HGD1000 & larger
• Maximum Operating Pressure: 232 psig (16 kg/cm2), Maximum Inlet Temperature: 120ºF (49ºC)
• All models are certified UL1995/CSA 22.2 No. 236-95

HYDROGARD Non-Cycling Drying Systems

HGD Series 100 to 3000

• Deliver continuous-duty operation and performance
• Reliable, non-cycling refrigeration compressors
• Integral two-part drying and filtering process
• CSA approved

emm^TM Controller

Models HGD 200 to 3000:

• User friendly interface
• Advanced 24 volt control package saves energy
• Ten language communications
• "Schedule mode" allows one or two-shift operations to save energy by scheduling the dryer to turn on and off as needed
• Drain push-to-test button
• Power-on and compressor-on lights
• Operator alert light indicates that service is required
• Dew point temperature indicator
• Remote monitoring of the emm^TM, from your computer, possible through the RS-232 Communication Port
• Standard NO and NC voltage-free alarm contacts and RS-232 Communication Port
• Fault condition diagnostics with user-friendly text display

The Complete Package

All Models

• 316 stainless steel, brazed plate heat exchangers feature low, pressure drop and, unparalleled performance and reliability
• Integral Grade D Moisture Separator/Filter removes bulk liquid and solid particulates down to 3 micron
• Optional Pyramid filtration catpures solids to .01 micron and oil to .008 ppm/w
• No air loss condensate drains

Space-saving PYRAMID drying systems employ a three-part-process to arrive at technically oil-free compressed air from a single package.

First, compressed air is chilled to a +35°F evaporator temperature using environmentally friendly R134a or R404a refrigerants. Cold liquid refrigerant and warm compressed air flow counter-current through a series of high-yield reciprocating passages crafted from 316ss plates. Nested in alternating layers, this delivers energy efficiency and thermal cooling for precise pressure dew point control.

Second, the chilled saturated air stream enters a Grade D Separator/Filter that removes the condensate and scrubs the air of all particulates 3 microns in diameter and larger. This two-stage filter is uniquely designed to provide consistent moisture removal at all flow rates.

Third, the cold scrubbed air stream enters a Grade B High Efficiency Oil Removal Filter that polishes the air stream thus, removing any remaining oil to 0.008 ppm w/w as it strips remaining particulates to 0.01 micron. PYRAMID delivers technically oil-free compressed air that contains virtually no condensable hydrocarbons to contaminate your operations and processes.

Download Deltech HYDROGARD® HGD brochure:

Brochure