What is High Temperature Refrigeration Air Dryer
High-Temp air dryers are specifically designed to be paired with piston and reciprocating air compressors. Compressed air from a reciprocating compressor is significantly hotter than the air from a rotary screw, which can cause internal damage to a standard refrigerated air dryers. High temp refrigerated dryers are designed to handle this hot incoming air. High temp dryers typically achieve a 50ºF dew point compared to a standard refrigerated air dryer that cools the air to 38ºF. Additional post dryer filtration may be needed to ensure no moisture is seen in the piping system after the air leaves the dryer.
Benefits of High Temperature Refrigeration Air Dryer
Improved equipment longevity
By effectively removing moisture from compressed air, refrigerated air dryers prevent rust and corrosion in pneumatic tools and machinery. This prolongs the lifespan of expensive equipment, reducing the need for frequent replacements and repairs, thereby saving costs in the long run.
Enhanced product quality
In industries such as manufacturing and food and beverage, dry air is crucial for maintaining product integrity. Moisture-free air prevents defects in processes like painting and packaging, resulting in higher-quality end products and reducing the risk of contamination.
Energy efficiency
Modern refrigerated air dryers, especially cycling models, are designed to optimize energy consumption. They adjust their operation based on the demand for dry air, ensuring that energy is not wasted when the need for compressed air is low, leading to substantial energy savings over time.
Compliance with industry standards
In sectors like pharmaceuticals and food production, compliance with industry regulations for air purity is mandatory. Refrigerated air dryers help maintain the required levels of air cleanliness, ensuring that operations meet stringent standards and avoid legal repercussions.
Operational reliability
Consistently dry air provided by refrigerated air dryers ensures the smooth functioning of air-operated tools and processes. This reliability reduces downtime and maintains a steady workflow, enhancing overall productivity and efficiency in industrial operations.
PD Series Refrigeration Air Dryer
Capacity: 6~180 m3/min
Max. working pressure : ≤1.5MPa (15barg)
Max. inlet temperature : 60℃
Max. ambient temperature : 50℃
Min. ambient temperature : 5℃
Max. cooling water temperature : 40℃
Cooling type : Air-cooled
water cooled version from 120 to 1800
Power supply: 220V/1Ph/50Hz/60Hz (RSL*-60-PD ~ RSL*-150-PD)
380V/3Ph/50Hz/60Hz (RSL*-200-PD ~ RSL*-1800-PD)
Refrigerant: R134a/R407C
Rated condition :
Rated working pressure : 0.7MPa
Inlet temperature : 38℃
Ambient temperature : 38℃
Cooling water temperature : 32℃
PDP : 3-10℃
Other :
For pressure of < 1.5MPaor > 0.4MPa.
High Pressure Refrigeration Air Dryer
Capacity: 1.2~80 m3/min
Max. working pressure : ≤4.5MPa (45barg)
Max. inlet temperature : 60℃
Max. ambient temperature : 50℃
Min. ambient temperature : 5℃
Max. cooling water temperature : 35℃
Cooling type : Air-cooled
water cooled version from 150 and above
Power supply: 220V/1Ph/50Hz/60Hz (RSLF-12-HP ~ RSLF-150-HP)
380V/3Ph/50Hz/60Hz (RSLF-200-HP ~ RSLF-800-HP)
Refrigerant: R134a/R407C
Rated condition :
Rated working pressure : 4.0MPa
Inlet temperature : 38℃
Ambient temperature : 38℃
Cooling water temperature : 32℃
PDP : 3-10℃
Other :
For pressure of < 1.5MPaor > 0.4MPa.
SSD Series Refrigeration Air Dryer
Capacity: 0.6~4.0 m3/min
Max. working pressure : ≤1.6MPa (16barg)
Max. inlet temperature : 60℃
Max. ambient temperature : 50℃
Min. ambient temperature : 5℃
Cooling type: Air-cooled
Power supply: 220V/1Ph/50Hz or 60Hz
Refrigerant: R134a / R407C
Rated condition:
Rated working pressure : 0.7MPa
Inlet temperature : 38℃
Ambient temperature : 38℃
PDP : 3-10℃
Other :
For pressure of < 0.4MPa or > 2.0MPa
please contact us
When the working pressure > 1.6Mpa
the electrical drain needs to be replaced.
A High Pressure Air Dryer is a specialized piece of equipment designed to remove moisture from compressed air in systems that operate at exceptionally high pressures. These dryers are critical in ensuring the reliability and efficiency of compressed air systems, especially in demanding industrial applications where standard air dryers might not suffice due to the high pressure requirements.
High Inlet Temperature Air Dryer
The High Inlet Temperature Air Dryer is a specialized air dryer designed to handle compressed air systems where the inlet air temperature is significantly higher than standard levels. This product is engineered to ensure that even under challenging conditions, where the inlet temperature can reach up to 80°C, the compressed air delivered remains dry and free from moisture, ensuring the efficiency and longevity of industrial equipment.
High Temperature Refrigeration Air Dryer
Capacity: 1~15 m3/min
Max. working pressure : ≤1.5MPa (15barg)
Max. inlet temperature : 80℃
Max. ambient temperature : 50℃
Min. ambient temperature : 5℃
Max. cooling water temperature : 35℃
Cooling type : air-cooled / water cooled
Power supply: 220V/1Ph/50Hz/60Hz
Refrigerant: R134a/R407C.
ST Series Refrigeration Air Dryer
Capacity range :100~550 m3/min
Working pressure : ≤ 1.0MPa (10barg)
Max. inlet temperature : 50℃
Max. ambient temperature : 45℃
Min. ambient temperature : 5℃
Max. cooling water temperature : 35℃
Cooling type : air-cooled / water-cooled
Power supply : 380V/3Ph/50Hz or 60 Hz
Refrigerant : R407C
Rated condition :
Working pressure : 0.7MPa,
Inlet temp : 38℃
Ambient temp : 38℃
Cooling water temperature : 30℃
PDP : 2-10 ℃
Other :
For pressure of < 1.0MPa or > 0.4MPa
Please contact us.
Why Choose Us
High quality products
We always put customer needs and expectations in the first place, refine on, continuous improvement, to seek every opportunity to do better, to provide customers with their expectations of quality products, to provide customers with the most satisfactory service at anytime.
Professional team
We have a team of skilled and experienced professionals who are well-versed in the latest technology and industry standards. Our team is dedicated to ensuring that our customers get the best service and support possible.
Customer satisfaction
Providing after-sales services can enhance customer satisfaction by ensuring that customers' needs are met even after the purchase. This can lead to increased customer loyalty and positive word-of-mouth referrals.
Advanced equipment
We take strong measures to ensure that we use the highest quality equipment in the industry and that our equipment is regularly and meticulously maintained.
Competitive prices
We offer our products at competitive prices, making them affordable for our customers. We believe that high-quality products should not come at a premium, and we strive to make our products accessible to all.
Rich experience
Has a long-standing reputation in the industry, which makes it stand out from its competitors. With over many years of experience, they have developed the skills necessary to meet their clients' needs.
Types of Refrigerated Air Dryers
Cycling dryers
Cycling dryers operate by turning the refrigeration compressor on and off based on the demand for compressed air. This cycling process makes them highly energy-efficient, particularly in applications where air demand varies significantly. By only running the compressor when needed, cycling dryers significantly reduce power consumption, making them an ideal choice for facilities looking to minimize energy costs.
Non-cycling dryers
Non-cycling dryers continuously run the refrigeration compressor, regardless of the demand for compressed air. This constant operation provides a stable and consistent dew point, ensuring that the air remains dry at all times. While non-cycling dryers offer reliable performance, they tend to consume more energy compared to cycling dryers due to the continuous operation of the refrigeration system.
Why a Refrigerated Compressed Air Dryer
Refrigerated air dryers are among the most used types of air dryers for air compressors. They come in a simple design and require minimal maintenance. Additionally, they are more cost-effective than other types of compressed air dryers.
A refrigerated air dryer should be the standard choice if you need an air dryer that does not require specific features, such as very low dewpoint. As said before, refrigerated air dryers do not require special maintenance, and as long as you get a quality one and have installed in the right way, you will be in the set-and-forget mode for a very long time. There is a takeaway here. You need to have the air dryer appropriately installed for it to work efficiently and prolong the life span of your air compressor and air tools. So, what is the right way to install an air dryer? Do not worry; we will look into that shortly. But before we go into how to install the compressor air dryer, we need to understand what and air dryer is and how it works.
There are some essential factors to keep in mind when shopping for a refrigerated air dryer. Here are some of the key points:
The maximum pressure
You have to ensure that the maximum pressure of your refrigerated air dryer is the same or slightly higher than the maximum pressure of your air compressor.
Maximum airflow
The maximum rate of airflow through your compressed air dryer must be higher than what is delivered by your air compressor. Going for a too-small air dryer will cause massive pressure drop over the dryer, due to this reason you need to adjust the pressure on your air compressor higher to compensate for the pressure drop. This would mean incurring high costs in energy bills. Additionally, the dryer may not be in a position to reach the required dewpoint.
Inlet temperature
The air dryer comes with a specified inlet temperature that you have to take a keen interest in. If you go above the recommended temperature, some parts of the air dryer may be damaged all the entire system will fail and therefore not achieve the desired dewpoint. Some air compressors come with an aftercooler installed in their system.
In this case, the compressed air will be somewhere around 40 degrees Celsius. Without an installed aftercooler, the compressed air can be as high as 80 degrees Celsius and above. You need to check the temperature of compressed air, leaving your air compressor. If it is scorching, then you can go for some special high inlet temperature dryers found in the market. These are specifically designed to work in such hot air conditions.
Maximum outside temperature
Do you need to work with your air dryer in hot conditions? The chances are that your air dryer will overheat and shut down. You need to find out the maximum temperature that your air compressor can work in and buy an air dryer that can handle such temperature ranges.
As the name goes, a refrigerated air dryer works by cooling compressed air. Warm wet air enters the dryer, where it gets cooled down to 3 degrees Celsius for moisture (water vapor) in the air to condense into water. The condensed water is then trapped using a water trap and removed from the compressed air system. The cold air is then entered into room temperature. The remaining air is now free from moisture (dry air) of any kind since the water has been trapped out. The cooling effect happens in the same way that your cooler or refrigerator would work. Liquid refrigerant goes through an evaporator and is evaporated to cool down the warm air from the air compressor. This process happens in a separate circuit.
As the compressed air gets cooled down, the refrigerant becomes warm. Thus, to cool the refrigerant down once again, it is compressed by a small compressor in the condenser. The evaporator, which is the place where the refrigerant cools down warm compressed air, is found at the top part of the air dryer. In most cases, you will see a cooling fan close to the condenser.
Components of a Refrigerated Air Dryer
Understanding the various components of a refrigerated air dryer is essential for grasping how the device functions as a whole. Each component plays a crucial role in ensuring that the compressed air is effectively dried and free of moisture. With that said, the following are the main components of a refrigerated air dryer:
Heat Exchanger
The heat exchanger cools the incoming warm, moisture-laden air through a refrigeration cycle. This process lowers the air temperature, causing moisture to condense. This initial cooling phase is crucial for effective moisture removal in subsequent stages. Maintaining optimal temperatures also enhances the overall efficiency of the drying system.
Air-to-Air Heat Exchanger
Once the air has been cooled, it flows through an air-to-air heat exchanger, where it is reheated by the outgoing cold, dry air. This process minimizes temperature fluctuations and prevents condensation on the exterior of the dryer, thereby ensuring system stability and efficiency. This reheating step also contributes to energy conservation within the system.
Moisture Separator
The condensed moisture must be removed from the compressed air. The moisture separator effectively collects and eliminates this liquid, ensuring that only dry air enters the distribution system. This step is crucial for preventing any residual moisture from damaging downstream equipment. It also extends the lifespan of the system by preventing corrosion and rust.
Refrigeration Compressor
The refrigeration compressor serves as the core of the dryer, cycling refrigerant through the system to maintain the desired temperature. By consistently compressing and circulating the refrigerant, the compressor ensures the system operates efficiently, keeping the air dry and the process seamless. Regular maintenance of the compressor is vital for the long-term reliability of the entire system.
Refrigerated Air Dryer Maintenance Tips
Condenser maintenance
The heart of the refrigerated dryer's efficiency lies in its condenser. Keeping the condenser clean is non-negotiable. Dirt and debris accumulation can lead to failures and inefficiencies, so regular cleaning of refrigerated dryer condenser is mandatory. You can simply use a compressed air blowgun to remove debris from the air dryer condenser. This not only allows for proper operation but also enhances the air dryer's longevity.
Electric drain valve maintenance
A critical component of the refrigerated dryer is the electric solenoid drain valve. The drain valve effectively removes moisture, ensuring the dryer's efficient operation. Make sure to remove and clean the screen in the drain valve which is used to filter debris to protect the valve. Regular maintenance of this drain valve is crucial. Neglecting this can lead to moisture buildup, hindering the air dryer's performance and potentially causing damage.
Utilizing service kits
To simplify maintenance, refrigerated dryer service kits are available. These kits are designed for rebuilding drain valves, traps, and replacing filters to maintain the air dryers. It's recommended to use these dryer kits every six months. By following this maintenance schedule, you can improve performance and reduce the likelihood of unexpected air dryer failures.
Regular cleaning and blowing out the condenser
Alongside scheduled maintenance, regular cleaning of the refrigerated air dryer is critical. Blowing out the condenser with compressed air and cleaning the refrigerated air dryer periodically helps in maintaining efficiency. This prevents common issues like overheating and maintains the air dryer's performance level.
Our Factory
Hangzhou Risheng Decontamination Equipment Co.,Ltd. is a compressed air treatment (filtration, drying and purification) solution provider with own research and development (R&D), manufacturing, sales, and service capabilities. Risheng was established in 1992, and has constantly adhered to its development path of "Quality First and Continuous Innovation" ever since.
Certifications
Vice President of Industry Association; ISO 9001 Quality System Accreditation both domestically and internationally; CE Certificate in the European Union; British AEA, and German TÜV.
FAQ
