OMEGA ADRY Adsorption Compressed Air Dryers

Adsorpční sušičky stlačeného vzduchu Omega ADRY

small adsorption dryers for perfect moisture removal from compressed air with tower regeneration by purging
standard version with dew point -40 °C; on request with dew point -25 °C or -70 °C
operating temperature +1.5 °C to +50 °C; electrical voltage 230 V 50/60 Hz, electrical protection IP65
modular concept allows extremely fast maintenance and reliable operation
improved adsorption capacity due to the use of two layers of adsorbent - molecular sieve and silica gel
aDC 4.0 electronic control unit with dew point sensor connection and webserver access
4 control valves with diaphragms made of highly durable NBR reinforced PA, pressure gauges on the top side for column pressure reading
included in the scope of delivery inlet microfilter AFS 0,01 µm and outlet dust filter AFR 1 µm
designed for all applications with high minimum humidity requirements in compressed air
important note: A-DRY dryers consume approximately 15-20% of compressed air for regeneration of the production columns

ADRY compressed air dryers in adsorption design
Ordering number	Flow		Pressure Bar	Power consumption W	Voltage V/Hz	Connection "	Dimensions mm			Weight kg	Service KIT
Ordering number	l/min	m³/h	Pressure Bar	Power consumption W	Voltage V/Hz	Connection "	d	with	in	Weight kg	1 year	2 years	4 years
ADRY-6	100	6	4-16	35	230/50	3/8"	490	120	404	11	*-1R	*-2R	*-4R
ADRY-12	200	12	4-16	35	230/50	3/8"	490	120	638	14		*-2R	*-4R
ADRY-24	400	24	4-16	35	230/50	3/8"	490	120	1106	19		*-2R	*-4R
ADRY-36	600	36	4-16	35	230/50	3/8"	490	120	1574	28		*-2R	*-4R
ADRY-60	1 000	60	4-16	35	230/50	3/4"	570	170	1106	45	*-1R	*-2R	*-4R
ADRY-75	1 250	75	4-16	35	230/50	3/4"	570	170	1300	53	*-1R	*-2R	*-4R
ADRY-105	1 750	117	4-16	35	230/50	3/4"	570	170	1700	70	*-1R	*-2R	*-4R
ADRY-150	2 500	150	4-16	35	230/50	1"	725	240	1440	171	*-1R	*-2R	*-4R
ADRY-200	3 333	200	4-16	35	230/50	1"	725	240	1655	183	*-1R	*-2R	*-4R
ADRY-WMK	Wall mounting kit ADRY-6 to ADRY-36
ADRY-OSCB	Dew point sensor - for air saving regeneration including cable
ADRY-MK	Dew point sensor measuring chamber
ADRY-ADC22	Siemens ADC 2.2 control unit
Reference conditions for flow measurement: temperature +20 °C, inlet air +35 °C, working pressure 7 bar, dew point -40 °C. * Total order number for the service KIT = Order number of the dryer + (number of years). Example ADRY-6-1R

Correction factor F1 - Working pressure
Working pressure bar	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
Correction factor	0,38	0,5	0,63	0,75	0,88	1	1,13	1,25	1,38	1,50	1,63	1,75	1,88	2,00	2,13
Inlet temperature - correction factor F2									Dew point - correction factor F3
Working pressure bar			25	30	35	40	45	50	Dew point °C				-25	-40	-70
Correction factor			1	1	1	0,97	0,87	0,80	Correction factor				1,1	1,0	0,7
Multiply the nominal flow rate by the appropriate correction factor(s) to calculate the correct equipment flow rate under actual operating conditions. Correction flow = nominal flow x F1 x F2 x F3

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Four independently controlled valves	Compact control blocks	Pressure gauges	Removable production column

Four high-quality solenoid valves are used to ensure optimal and complete control of the drying process. The individual control of each valve leads to the avoidance of pressure peaks during column switching.	The compact and robust design of the upper and lower control block ensures reliable operation. The cleaning air branch is mounted on the upper block with a check valve so that the nozzle can be replaced if required.	Two pressure gauges located on the top side of the upper control block provide reliable pressure information in each of the production columns. Combined with LED indication, pressure gauges are an excellent tool for diagnosing pressure during dryer operation.	Only two screws need to be loosened to remove the production column from the dryer structure. Replacing adsorption material has never been so easy and quick - you can save valuable time and money.

Použité komponenty sušičky stlačeného vzduchu ADRY Omega

Energy savings

Ten-minute duty cycle

A-DRY dryers can be optionally equipped with remote control, where they are controlled by a stand-by signal from the compressor or the master control system.
If a stand-by signal is present, air can flow freely through both columns in the inlet to outlet direction.
The dryer control unit is in stand-by mode and is ready to switch to normal operation as soon as it receives a signal to do so.
The stand-by signal is fed to the A-DRY via a relay contact on the control unit.

The energy losses of A-DRY dryers are optimised by a 10 minute duty cycle:

5 min = Adsorption
4 min = Regeneration
1 min = Pressurization

The extended duty cycle of 12 switches per hour is also reflected in less wear and tear and therefore more reliable operation.

Main components

Compressed air inlet (humid air)
Compressed air outlet (dry air)
Production column packed with adsorbent
Two layers of adsorption material
Control unit
Upper control block
Lower control block
Solenoid valve
Silencer
Check valve
Nozzle
Manometer
Inlet microfilter
Outlet dust filter
Condensate drain
Stainless steel strainer
Spring
Retaining ring
Stainless steel strainer

Schéma adsorpční sušičky stlačeného vzduchu od kompresoru ADRY

Easy maintenance

Thanks to the innovative column, the adsorbent change can be carried out in minutes. The entire column can be removed from the dryer by loosening the four top nuts and removing the side locking screws.
The column can be filled with a new adsorbent or completely replaced with a new column.
When the column is removed, there is direct access to the check valve, cleaning nozzle and no need to completely disassemble the entire adsorption dryer.
The valves and diaphragms are located under the bottom of the control block with easy access for quick maintenance or replacement.

To remove the columns, two locking screws (one from the upper and one from the lower control block) must be unscrewed.
Unscrew the four locknuts from the upper control block.
Remove the tower and replace the adsorbent.

Physical theory

Compressed air contains contaminants such as water, oil and solid impurities that must be removed from the air or reduced to acceptable levels according to the specific requirements of each application. ISO 8573-1 specifies compressed air quality classes for these individual air contamination components.

Humidity (water vapour content) is expressed in terms of pressure dew point (PDP), where dew point is the temperature at which the air is 100% saturated with moisture. If the air temperature is below or equal to the dew point, a process called condensation occurs.

The reduction of the water content to a dew point of +3 °C is usually achieved with condensing dryers, which are used for most industrial applications.

Adsorption dryers

Typical applications for adsorption dryers are outdoor installations where there is a risk of water freezing and applications with very high dry air requirements (PDP < +3 °C) such as processes in the food, beverage, chemical, pharmaceutical and electronics industries.

The most common type of adsorption dryers are cold regeneration dryers, which are a relatively low-cost investment due to their simplicity and reliability.

Control unit

The control unit installed on the A-DRY series adsorption dryers, combined with indicators monitoring the operation of the dryer, ensures the operation of the entire plant. The control unit displays status information via six LEDs - one for power, one for alarm/stand-by and four for checking valve status.

Each of the four LEDs displays the status of the valve being controlled, allowing the operator to see the current configuration of each valve position at any time.

This information, together with the data from the indicators in the individual columns, allows monitoring and analysis of the operation of the adsorption dryer, as well as improving the search for possible faults and malfunctions.

Řídící jednotka adsorpční jednotky ADRY

Two layers of high high-quality adsorbent	Spring system adsorbent protection	Surface protection	Precision CNC machining used components

The A-DRY series adsorption dryers use a high quality robust adsorbent to provide stable operation with low energy input. The primary adsorbent layer is made up of a molecular sieve with an extremely high drying potential. To prevent potential degradation of the primary layer by liquid water, the bottom of the column is filled with waterproof silica gel.	During operation, compressive forces are applied to the adsorbent, resulting in movement of the adsorbent material, causing undesirable friction. Adsorbent loss leads to reduced efficiency. For this reason, the A-DRY dryers are equipped with a spring system that applies a constant pressure force to the adsorbent placed in the column, ensuring operation without movement of the adsorbent.	The production columns and other metal parts are powder coated with epoxy paint. The aluminium components used on A-DRY dryers feature an anodised surface to prevent potential oxidation.	Contemporary CNC machining guarantees high quality, perfect sealing and reliable operation of all dryer components. Built-in high-quality materials guarantee smooth operation of the equipment.