Compressed Air Dryers & Filters

Bi-State Compressor is proud to offer Quincy and Deltech air dryers and filters to meet the needs of your facility. Designed to remove moisture from compressed air, these air dryers are manufactured to precise standards and represent the cutting edge in drying technologies.

As compressed air cools, water vapor condenses and needs to be removed to prevent moisture and other harmful substances from damaging industrial processes. At Bi-State Compressor, we offer a complete array of products to keep your equipment running smoothly, including:

Refrigerated dryers
Dessicant dryers
Standard filtration: Particulate, Coalescer, and Absorber

At Bi-State Compressor, we offer the most innovative, reliable, and economical solutions for your industry. We’re happy to discuss your facility’s specific requirements and give you the best equipment available on the market today. If you need assistance determining which air dryer and filter system is right for your business, please call us at 636-349-8333 or fill out our contact form. We’re happy to help.

Our compressors have been used in and more.

If you need assistance determining which industrial air compressor is right for your business

QPNC Series

The QED and QPCD Series

QRHT Series

QHD Heatless Desiccant Dryer

QDHP Heated Purge Desiccant Dryer

QDBP Blower Purge Dessicant Dryer

QMOD Heatless Modular Desiccant Dryer

Quincy DCN and QPF Series

Quincy CSN and QMF, CPN and QCF Series

Quincy ACN and QAF Series

Deltech Refrigerated Air Dryers

Refrigerated air dryers work by chilling the air to a temperature that causes the moisture in the air to condense and form droplets. This moisture and any contaminates contained therein can be separated from the air steam and discharged from the dryer. These dryers all have the same basic components to operate; a refrigeration system, heat exchanger, separator and drain. Although this technologies does not offer as low of a dew point as other dryers, this type of air dryer is quite popular due to their low initial capital costs, relatively low operating costs and low maintenance costs. They are quite versatile for many industries as the dew point range is well within many general industrial air plant applications.

The Deltech line of refrigerated dryers is specifically engineered for applications above the freezing point of water, each series is crafted to meet your compressed air treatment requirements. These units are equipped to handle flows ranging from 10 - 3000 scfm (17 - 5097 nm3/h) and are tailored to operate across multiple applications. All Deltech refrigerated dryers incorporate environmentally friendly refrigerants and hermetically sealed refrigeration compressors to guarantee reliability for the life of your unit. They also utilize fully automatic condensate drain valves tp ensure the lowest possible dew point under all rated design conditions - without freeze-ups, saving energy and adding value to your bottom line!

Refridgerated Air Dryers

High Inlet Temperature Air Dryers

Energy Saving Refrigerated Air Dryers

Deltech Desiccant Air Dryers

The word desiccant air dryer encompasses a broad range of dryers. Regenerative dryer and twin tower dyer are other terms used to describe the same types of machines. Compressed air is passed through a pressurized vessel with two columns or towers. These towers are filled with materials such as activated alumina, silica gel, a molecular sieve or other absorbent or desiccant material, which attracts the moisture from the compressed air. The desiccant works to bring the pressure dew point of the compressed air to a level in which water will no long condense. In short the role of a desiccant dryer is to remove as much water from the air as desired in the most energy efficient manner possible. Deltech has been at the forefront of innovation and development in the desiccant dryer technologies. These energy efficient designs offer maximum value across a range of flow rates to provide flexibility, safety and reliability to meet all of your compressed air needs.

Every Desiccant Dryer contains these quality features:
• Highly hygroscopic desiccants combine spherical uniformity with superior crush strength to deliver stable dew point control and low dust migration
• Process quality switching valves deliver consistent repeatability to ensure system integrity and long component life cycles
• Precision timing circuits control process valve sequencing protocols to deliver optimum dew point stability and energy efficiency
• Calculated desiccant bed construction ensures ideal tower velocities to adsorb moisture, stabilize dew points, and prevent bed movement
• Spare muffler(s) are included on all models and sizes

Pressure Swing Heatless Desiccant Air Dryers

Heatless Desiccant Air Dryers

Externally Heated Desiccant Air Dryers

Blower Purge Desiccant Air Dryer

Heat of Compression Desiccant Air Dryers

Compressed Air Filtration Technologies

Bi-State Compressor is proud to offer Del-Monox air purifiers and other air filtration technologies to meet the needs of your facility. When used as directed, Del-Monox purifiers supply air that meets OSHA Grade D and Canadian Standards Association (CSA) maximum allowable contaminant levels for compressed breathing air. The quality of the inlet air to the compressor will affect the efficiency of the breathing air purifiers. The compressor intake must be located in an environment that is not oxygen deficient and does not contain excessive levels of carbon monoxide. To meet the OSHA standards of 10 ppm maximum allowable concentration of CO at the system outlet, CO at the inlet must not exceed 200 ppm. To meet CSA standards of 5ppm maximum concentration at the outlet, the inlet concentration must not exceed 100 ppm of CO.

In order to reduce the levels of CO, the Del-Monox system makes precise use of technology, utilizing catalytic conversion towers to change CO into CO2. This is a process that can be hampered when the relative humidity in the airstream increases, which is why every Del-Monox system is built with proven compressed air dehydration techniques to protect the catalytic converter from moisture.

The engineered system uses six stages of purification to ensure that air output achieves the required specified air quality levels.

Step 1: The one micron general purpose filter removes both solid and liquid contaminates.
Step 2: The 0.01 micron high efficiency coalescing type oil removal filter removes virtually all liquid oil aerosols.
Step 3: The Deltech Pressure Swing Regenerative Desiccant Dryer reduces the moisture levels to ensure the proper effective operation of the catalyst bed.
Step 4: The Catalytic Converter lowers the concentrations of CO by converting it to CO2.
Step 5: A particulate afterfilter removes contaminates one micron and larger from the airstream.
Step 6: Finally, the activated carbon filter removes oil vapor and any undesirable odors from the airstream.