HYD-HTN series

Compressed air dryer is as important to keep your air system running at peak efficiency

GSA’s compressed air dryer is highly reliable and efficient in use

HYD-N Refrigerated air dryers series

Why Refrigerated Air Dryer ?

GSA’s Refrigerated Air Dryer

refrigerated dryer
refrigerated dryer
With a high-efficiency aluminum heat exchanger, GSA refrigerated air dryer offers great dehumidifying performances and stable dew points with a larger heat exchange area and greater efficiency than other types of heat exchangers. SA’s aluminum heat exchanger is divided into three different parts: i) air-air heat exchanger, ii) air-refrigerant heat exchanger, iii) oversized thermister separator for removing moisture from the compressed air cooled in the second heat exchanger. The first section of the heat exchanger reduces electrical energy with decreasing load of the refrigerant compressor by exchanging the heat of the hot inlet air and cold compressed air cooled down to the dew point in the second section of the heat exchanger. The cold compressed air cooled down to the dew point meets hot inlet air from the air compressor and increases the outlet temperature of the compressed air. As a result, it can prevent pipes from sweating. The oversized thermister separator enhances dehumidifying performances by removing condensate efficiently from the humid compressed air cooled down in the second section of the heat exchanger.

Components

  • HYD-5HTN ~ HYD-20HTN
    40μm Filter + After-cooler + 5μm Filter + Refrigerated Dryer + 1ppm Oil Removal Filter
  • HYD-30HTN ~ HYD-100HTN
    After-cooler + 5μm Filter + Refrigerated Dryer + 1ppm Oil Removal Filter
  • HYD-150HT or higher
    A refrigerated dryer with condensate and refrigerant circuit specialized for high temperature (* filter and after-cooler NOT included)

Features

  • Saves a space with a small installation area, featuring an after-cooler and a filter
  • Easy installation without piping works for an after-cooler and a filter
  • Saves energy by controlling an after-cooler by inlet temperature

Classification

Refrigerated Dryer
Non Cycling Type
  • Standard models
  • Operated all the time regardless of load
Cycling Type
  • Energy-saving models
  • Operated or halted depending on load
Standard :

HYD-N Series
  • Commonly used standard products
High Temperature :
HYD-HTN (Small) / HYD-HT (Large)
  • Featuring an after-cooler, this model is good for high inlet temperature. It also has an filter, minimizing piping and installation areas.
Generation-II :

HYD-N2 Series
  • This model is designed to save energy by controlling cooling temperature and energy stored in a heat exchanger.
Generation-III :

HYD-N3 Series
  • This model is designed to save energy by controlling cooling temperature and energy, using the latent heat of phase change materials (PCMs) stored in a specially designed heat exchanger.

Highly Reliable Refrigerated Air Dryer

Diverse Innovative Technologies

aluminum heat exchanger

High-efficiency Aluminum Heat Exchanger

With a high-efficiency aluminum heat exchanger, GSA refrigerated air dryer offers stable dew points with a larger heat-exchange area and greater efficiency than other types of heat exchangers such as shell & tube and plate ones. Made with the same material, the GSA air dryer has no thermal resistance and is free from heat exchanger freeze-up or corrosion.

Highly Reliable Drain without Compressed Air Loss

Highly Reliable Drain
without Compressed Air Loss

With a thermister and a large separator inside the heat exchanger, it offers great condensate isolation efficiency. The isolated condensate is discharged through a magnetic float or level sensor-based electronic drain, ensuring great efficiency and operating performances. Therefore, it reduces performance drop or failure in the drain caused by oil or various contaminants.

mepol pipe inside diagram

MEPOL Inner Pipe

The high-temperature dryer is durable and anti-corrosion, featuring a cooler, a filter, a dryer and MEPOL pipe. Therefore, it can prevent pipe corrosion and microbial/bacterial formation. With great mechanical strength and pressure resistance, it reduced a risk of rupture caused by shock or fluid. With anti-scale properties, furthermore, it keeps the flow constant and reduces a possibility of differential pressure. The compact design also minimizes a design area.

High efficiency condenser

Efficiency Maximization with High-efficiency Condenser

For stable performances even under unfavorable circumstances such as high temperature, grooved cooper tube and corrugated split fin were applied. Since they are expanded in a complete and uniform manner, fin adhesion is high, applying condensate with a high coefficient of heat transfer. Therefore, it guarantees stable operations under diverse environments including hot temperature.

Smart and Simple Controller

Smart and Simple Controller

The simple and functional controller helps users read the exact dew points. It is able to check if an after-cooler functions properly with power supply. In addition, it automatically controls an after-cooler by temperature, reducing unnecessary power consumption. A 4.3” TFT color touch panel controller enables simple and easy management, featuring digital dew point display, refrigerant pressure transmitter-based smart control, diverse temperature information, reverse phase check and mobile communication features (option) such as WIFI and BT.

airdryer inside

User Convenience

A high-temperature refrigerated air dryerfeatures an after-cooler and a filter. It does not need any separate piping works for an after-cooler/filter installation. In addition, the compact design ensures easy and convenientinstallation even in a small space. With an particle filter and an oil filter, in addition, this system provides high-quality compressed air without an addition of facilities.

low differential pressure

Minimizing the loss of compressed air
with low differential pressure

We minimized differential pressure with a large heat-exchange area and sufficient cross section for the passage of compressed air. We enhanced heat-exchange efficiency and reduced differential pressure by minimizing resistance, making it possible to operate the compressed air system more efficiently at lower costs.

Technical Specification

Design Conditions

  • Inlet Pressure : 7 barg
  • Inlet Temperature : Max. 80 ℃(HT : Max. 60 ℃)
  • Pressure Dew Point(PDP): 2 ~ 10℃
  • Ambient(Coolingwater) Temperature : 32℃
  • Design Pressure : 9.7 barg
  • Design Temperature : 70℃

References

  • The numbers in parentheses denote the specifications of water-cooled products.
  • 150HT(W) or higher models does not have a filter and an after-cooler.
  • 800HT or higher models are basically condenser-removable. Their specifications do notinclude condenser dimensions and weight.
  • Allmodelsuse eitherR-134aorR-22 refrigerant.Othermodels adopting differenttypes ofrefrigerants are also available.
  • The flow rate is based on 60Hz. Other electrical specifications are also available.
  • A unit with 9.7barg or higher operating pressure is custom-made.
  • Large models bigger than those stated in the specifications are also customizable. The specifications are subjectto changes without notice for productimprovement.
HYD-N3 series ​
Model Connection Flow Rate Filter Power Consumption Power Supply Dimensions(mm) Weight
A N㎥/min μm/μm/ppm Size kW V / Ph / Hz A B C kg
H
Y
D		 5HTNS PT 15A 0.7 40/5/1 15A 0.32 220 / 1 /
50, 60		 427 644 810 61
7HTNS PT 15A 1 40/5/1 15A 0.33 427 644 810 61
10HTNS PT 20A 1.4 40/5/1 20A 0.34 427 644 810 63
15HTNS PT 25A 1.9 40/5/1 25A 0.5 453 703 1138 79
20HTNS PT 25A 2.7 40/5/1 25A 0.53 453 703 1138 79
30HTN PT 25A 3.9 5/1 25A 0.9 455 875 1262 85
50HTNS PT 40A 6.7 5/1 40A 1.41 502 1002 1577 167
75HTNS PT 50A 10.5 5/1 40A 2.07 503 1148 1652 232
100HTNS PT 50A 14.2 5/1 50A 2.41 380 / 3 /
50,60

440 / 3 /
50, 60		 559 1289 1737 260
150HT(W) PT 65A 21 N/A N/A 4.18(3.78) 550 1200 1447 220
200HT(W) FLG. 80A 30 4.6(4.2) 700 1200 1580 260
250HT(W) FLG. 100A 39 5.5(5.1) 800 1500 1580 340
300HT(W) FLG. 100A 47 5.9(5.5) 800 1500 1580 360
400HT(W) FLG. 100A 56 9.7(8.9) 900 1800 1915 680
500HT(W) FLG. 150A 66 12.7(11.9) 1200 1800 1825 980
600HT(W) FLG. 150A 85 14.2(13.4) 1200 2100 1825 1200
800HT(W) FLG. 200A 120 25.45(23.2) 1500 1900 2150 1250
900HT(W) FLG. 200A 140 30.15(27.9) 1500 1900 2150 1320
1200HT(W) FLG. 200A 180 40(37) 2000 1900 2150 1450

Correction Factor

Correction Factor by Inlet Air Temperature (HTNS series)
Inlet Air Temperature (℃) 55 60 65 70 75 80 N/A N/A N/A N/A N/A N/A
Correction Factor 1.1 1 0.84 0.73 0.63 0.55 N/A N/A N/A N/A N/A N/A
Correction Factor by Inlet Air Pressure(HT series)
Inlet Air Temperature (℃) 40 45 48 52 56 60 N/A N/A N/A N/A N/A N/A
Correction Factor 1.1 1 0.88 0.76 0.65 0.55 N/A N/A N/A N/A N/A N/A
Correction Factor by Inlet Air Pressure
Inlet Air Pressure (barg) 5 6 7 8 9 10 N/A N/A N/A N/A N/A N/A
Correction Factor 0.89 0.94 1 1.04 1.06 1.09 N/A N/A N/A N/A N/A N/A
Correction Factor by Ambient Temperature (Air-cooled Machine)
Ambient Temperature (℃) 27 32 37 40 45 50 N/A N/A N/A N/A N/A N/A
Correction Factor 1.05 1.00 0.92 0.82 0.76 0.69 N/A N/A N/A N/A N/A N/A
Certification mark
GSA logo Since 1993

Refrigerated Air Dryers​

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