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Nashville: (615) 256-0112
Knoxville: (865) 523-9300
Elizabethtown: (270) 853-0282
Evansville: (812) 470-4110

Gardner Denver DPB Series - Externally Heated Blower Purge Desiccant Dryer

DPB Series Blower Purge Desiccant Dryer

Blower Purge Desiccant Dryer

Significantly reduce the energy costs associated with achieving a reliable -40°F (-40°C) pressure dew point. This is achieved by eliminating or reducing purge air requirements (compressed air utilized to regenerate desiccant beds) typical of other desiccant dryer designs.

Operating Parameters
■ Maximum working pressure: 150 psig
■ Minimum working pressure: 60 psig
■ Inlet air: 100 ±2 psig at 100° F ±2° F
■ Ambient temperature: 35–120° F
■ Ambient dew point temperature: 70° F
■ Inlet pressure dew point: 100° F
■ Outlet pressure dew point: -40° F (excluding bump at changeover)
■ Maximum delta P: 5 psid
■ Drying time: 4 hours
■ Inlet air pressure: 60–150 psig
■ Inlet air temperature: 40–120° F


Product Description

DPB Series Brochure


Standard Air Drying & 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 up-ward 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 bedwhich 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.

Manufacturer Info

Gardner Denver

John Bouchard & Sons is a Gardner Denver Authorized Distributor, stocking Air Compressors, Dryers and OEM replacement parts to maintain your factory warranty. Since we have over 30 years of experience in sales and service of Gardner Denver air compressors, our staff are the experts to turn to, when looking for the right compressor for your application or the right parts and oil for your existing machine.

Our onsite inventory includes compressors, dryers, oil and parts. Our parts inventory includes spin-on and cartridge style oil filters, air filters, separators and more for all models of Gardner Denver compressors and dryers. Our stock parts typically ship the same day.

Can’t find what you’re looking for online? The odds are good that we can. Give us a call so we can find what you need.

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