Global Air Treatment Dryer - DPB Series (500-4300 scfm)
Global Air Treatment Dryer - DPB Series (500-4300 scfm)
SKU:AIR-2974d1
Enhance energy efficiency with the Global Air Treatment Dryer - DPB Series, offering reliable -40°F pressure dew point and durable components.
Regular price
$8,999.99
Regular price
Sale price
$8,999.99
Unit price
per
Delivery via Maden
Expect your order to arrive on time.
Secure Payments
All orders are processed through a secure, PCI-compliant checkout.



The Global Air Treatment Dryer from the DPB Series is a top-tier solution for reducing energy costs while ensuring a reliable -40°F (-40°C) pressure dew point. Featuring durable air flow control components, efficient blowers, and a long-life heater design, this dryer excels in delivering consistent dew points. With large desiccant beds to ensure optimal performance over time, cleanable stainless steel tower design, and standard air drying and filtering processes, it meets high industry standards for efficiency and reliability.
Product Specifications
Features 0
1. Reliable and Durable Air Flow Control Components High quality inlet and purge valves feature air operated butterfly valves which offer high cycle life, resilient elastomeric seats for leak free service, low profile nickel plated disks offer low pressure drop, stem bushings ensure smooth operation, and no field lubrication required. Durable pneumatic actuators are isolated from the air stream and can’t be contaminated by incoming moisture. The inlet valves are double acting rack and pinion and use air power to both open and close. A spring return holds the purge valves closed prior to start-up and upon loss of pressure protects the desiccant bed from outside contamination. Dual pistons offer a large control area, high torque, and a rapid response. Position indicator shows if valve is open or closed. Valves may also be operated manually. Pilot air is filtered by a 1 micron particulate filter to ensure dependable actuation. An isolation valve allows for easy filter element service. Non-lubricated pilot valves with hermetically sealed coils and ISO 5211/Namur interface are standard. Check valves are soft seated for sure closures and minimal wear. Check valves are spring loaded to prevent back flow leakage when the downstream (closing) pressure is low. Separate depressurization valves allow slow depressurization of the off-stream tower. Mufflers keep noise below OSHA requirements. Repressurization valve allows tower to be fully repressurized before switchover which eliminates bed movement and loss of pressure downstream. 2. Durable and Eficient Blower High quality blowers Intake filter protects blower and desiccant beds from contamination Mounting pads and flexible air connections are used to eliminate vibration 3. Heater Design for Long Life Low watt density (23 W/in2) elements with Incoloy sheaths Temperature is controlled by an adjustable, digital indicating controller with thermocouple input which minimizes temperature swings Protection against overheating and element burnout provided by hi-limit provisions on controller plus an overtemperature thermocouple Over current protector with manual reset is provided 4. Insulation Reduces Heater Size Fully insulated heater vessel and upper purge piping standard Minimizes heat losses which reduces heater size Protects plant personnel from hot surfaces Durable melamine foam and fiberglass protected by jacket of polyester fabric impregnated with PVC 5. Large Desiccant Beds Ensure Consistent Dew Points 30% extra desiccant provided to compensate for natural bed aging over the expected 3 to 5 years bed life 7.2 seconds of contact time for saturated air with the desiccant. High grade of activated alumina has high crush strength and is resistant to abrasion 6. Quality Tower Design Cleanable, stainless steel air flow diffusers on inlet and outlet ensure even flow distribution and eliminate channeling through the bed Separate fill and drain ports ASME code constructed and stamped pressure vessels standard. Pressure relief valves on all models Finished with heat resistant enamel
Operating Parameters Ambient Dew Point Temperature
70 °F
Operating Parameters Ambient Temperature
80°F ±5°F
Operating Parameters Drying Time
4 hours
Operating Parameters Inlet Air At 100f 2f
100 ±2 psig
Operating Parameters Inlet Air Pressure
60–150 psig
Operating Parameters Inlet Air Temperature
40–120 °F
Operating Parameters Inlet Pressure Dew Point
100 °F
Operating Parameters Maximum Delta P
5 psid
Operating Parameters Maximum Working Pressure
150 psig
Operating Parameters Minimum Working Pressure
60 psig
Operating Parameters Outlet Pressure Dew Point
-40 °F
Process Designs 0
Standard Air Drying and Filtering Process Compressed air is prefiltered prior to the desiccant dryer by a 1 micron solid particle particulate filter and then by a oil removal filter [to 0.008 ppm (0.01 mg/m3)]. The wet, compressed air now enters the bottom of Tower 2 of the two dual towers filled with a bed of activated alumina desiccant through the inlet switching valve A. Inlet switching valve B is closed. Inlet valves A and B are butterfly valves with double acting actuators. The activated alumina adsorbs the moisture in the compressed air as the air flows upward through Tower 2. Upflow drying protects the bed from water and heavy contaminants by separating them from the air stream as they enter the tower. Cleanable, stainless steel, flow diffusers on the inlet and outlet of the tower ensure even flow distribution through the bed-which avoids channeling. The dry air exits the dryer through outlet check valve F. A FHT Series High Temperature afterfilter filters desiccant dust particles to 1 micron in size at the dryer outlet. FEATURES, BENFITS, OPTIONS Standard Controller Tower Status Service Reminder Heater on Heater temperature Desiccant bed temperature Failure to switch RS 232 port NEMA 4 enclosure Option E = Energy saving demand controller Energy saving demand controller provides an integrated humidity/temperature sensor from the on-line drying tower. Sensor “over-range” and “under-range” alarms. High humidity alarm. Vacuum fluorescent text, 2 line 16 characters. Highly visible in darkness or sunlight English, Spanish, French languages Automatic restart after power loss Remote indication of alarm Power on light Heater on light Tower status (drying, switchover, heat, cool, etc.) Tower switch switchover, failure (low heater temp/high heater temp) Dry Contacts (power, heater-on) LED sensor over-range or under-range temp/humidity dew point Service reminder RS 232 port NEMA4 enclosure Option D = dewpoint monitor with energy saving demand controller Digital dew point monitoring (text display) All of the features of the Energy Saving Demand Controller High dew point alarm Option V Insulate vessel shell and hot piping from heater to vessels Option F1 Mounted Grade E prefilter and FHT afterfilter with drain valve on separate skid package. Option F2 Mounted Grade E prefilter and FHT afterfilter with drain valve with block and by-pass valves on separate skid package.
Specifications Blower Power
3.4 hp
Specifications Flow
600 scfm
Specifications Heater Rated Output
12 kW
Specifications Height
108 in
Specifications Inletoutlet Connection
2" NPT
Specifications Length
71 in
Specifications Repl Desiccant
453 lb
Specifications Weight
2111 lb
Specifications Width
55 in