Choosing the right compressed air dryer requires more than matching a dryer’s published airflow rating to a compressor.
Operating pressure, inlet temperature, ambient conditions, required pressure dew point, application, demand pattern, and future growth can all affect the correct dryer type and capacity.
Provide the system information you have, and a Moisture Boss air-treatment specialist will review your application and help identify appropriate dryer options.
You do not need to know every technical detail. Complete the fields you can, and we will help determine what additional information may be needed.
What You’ll Receive
After reviewing your information, a Moisture Boss specialist can help you:
- Determine whether a refrigerated or desiccant dryer is more appropriate
- Estimate the capacity range required for your operating conditions
- Identify factors that may affect the dryer’s published capacity
- Narrow the available Moisture Boss product options
- Identify relevant filtration, separation, and condensate-management needs
- Determine whether the application requires additional technical review
- Prepare for a quote or product-selection discussion
Recommendations are based on the information provided and the verified operating data available for the products being considered.
Information That Helps Us Evaluate Your Application
Provide as much of the following information as you have available:
Compressed-Air Demand
- Maximum airflow
- Normal airflow
- Number and size of compressors
- Whether multiple compressors may operate at the same time
- Daily operating hours
- Expected demand changes or future expansion
Operating Conditions
- Normal operating pressure
- Maximum inlet-air temperature
- Maximum temperature around the dryer
- Indoor or outdoor installation
- Lowest temperature downstream piping may experience
Air-Quality Requirements
- Desired pressure dew point
- Application or process
- Whether compressed air contacts a product
- Required air-quality class, if known
- Whether the piping may be exposed to freezing conditions
Existing Equipment
- Current dryer manufacturer and model
- Reason for replacement
- Current moisture or performance problem
- Available voltage and phase
- Space or connection limitations
Do not delay submitting the form because a value is unknown. Select “not sure” or include a note where appropriate.
Why Operating Conditions Matter
Air dryers are rated under defined operating conditions. Their usable capacity can change when actual conditions differ from those ratings.
For example:
- High inlet temperature can increase the moisture load entering the dryer.
- High ambient temperature can affect heat rejection and dryer performance.
- Lower operating pressure can change the dryer capacity required.
- Outdoor or freezing conditions may require a lower pressure dew point.
- A desiccant dryer may require additional compressor capacity for purge air.
- Planned expansion may justify additional capacity.
A dryer selected only by nominal SCFM may not perform as expected when these factors are ignored.
Refrigerated or Desiccant?
A refrigerated dryer is often considered for general indoor plant-air applications where moderate dryness is sufficient and downstream piping remains above freezing.
A desiccant dryer may be more appropriate when:
- Air lines are exposed to freezing temperatures
- A very low pressure dew point is required
- The process is highly sensitive to moisture
- Instrument or critical-process air is needed
- The application has stricter air-quality requirements
The form information will help Moisture Boss narrow the appropriate dryer technology before recommending a product capacity.
New System, Replacement, or Moisture Problem?
Use this form for any of the following situations:
Selecting a New Air Dryer
You are adding a compressor, installing a new compressed-air system, expanding production, or adding equipment that increases air demand.
Replacing an Existing Dryer
You need to replace an aging, failed, undersized, discontinued, or inefficient dryer.
Include the existing manufacturer and model when available.
Solving a Moisture Problem
You are experiencing water downstream of the dryer, high dew point, frozen lines, product defects, instrument problems, or inconsistent dryer performance.
A moisture problem does not always mean the dryer itself is defective. The cause may involve:
- Excess airflow
- High inlet temperature
- Failed condensate drains
- Open bypass valves
- Inadequate filtration
- Downstream temperature
- Desiccant condition
- Heat-exchanger fouling
- Incorrect system configuration
Providing details about the symptoms will help guide the review.
What Happens After You Submit the Form?
1. We Review Your Information
A Moisture Boss specialist evaluates the operating conditions, application, and information provided.
2. We Identify Missing Details
We may contact you if an important specification or operating condition needs clarification.
3. We Narrow the Appropriate Options
Based on the available information, we help identify a suitable dryer technology, capacity range, and relevant product options.
4. We Discuss the Next Step
Depending on the application, the next step may be:
- Reviewing specific dryer models
- Confirming technical details
- Discussing filters, drains, or accessories
- Preparing a quote
- Requesting additional engineering review
Before You Submit
Please note:
- The recommendation is based on the accuracy and completeness of the information provided.
- Product capacity depends on actual operating conditions and the manufacturer’s approved correction data.
- Critical, regulated, product-contact, or unusual applications may require additional technical review.
- A preliminary recommendation is not a complete compressed-air system design.
Final product suitability should be confirmed before purchase and installation.
Frequently Asked Questions
Do I Need to Know My Exact Airflow?
No. Submit the information you have.
Compressor manufacturer, model, horsepower, and operating pressure may help estimate airflow, but verified airflow is preferred for final selection.
What If I Do Not Know My Required Dew Point?
Select “not sure” and describe the application.
Information about freezing exposure, moisture sensitivity, product contact, and process requirements can help determine the likely dryness requirement.
Can You Recommend a Replacement for My Existing Dryer?
Yes.
Include the current manufacturer, model number, operating conditions, and reason for replacement. A model number alone may not be enough if the current dryer was incorrectly sized or the system conditions have changed.
Should I Request a Quote or a Recommendation?
Request a recommendation when you are not yet certain which dryer type or capacity you need.
Request a quote when you already know the required product or have a defined specification.
This form can support either situation.
Will You Recommend Filters and Drains Too?
Where appropriate, the review may identify relevant prefilters, afterfilters, moisture separators, drains, or condensate-management components.
The exact treatment arrangement depends on the compressor, dryer technology, required air quality, and application.
Can This Form Be Used for Outdoor Installations?
Yes.
Include the highest and lowest expected temperatures, location, weather exposure, and whether downstream piping may freeze.
Is the Recommendation an Engineered System Design?
No.
The initial recommendation is intended to help narrow suitable product options. Complex, regulated, critical, or custom systems may require additional engineering review.