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Overview of the DAD-500 Desiccant Air Drying System's purpose and components.
Technical details for the 13-0041 (HAF-502) Water Separator Filter.
Technical details for the HAF-505 Oil Coalescing Filter.
Technical details for the Desiccant Dryer component.
Technical details for the HAR-507 Air Regulator.
Technical details for the VA-595 Main Air Supply Shut Off Valve.
Critical warnings regarding personal injury and property damage during operation.
Cautionary note about solvents and chemicals attacking plastic filter bowls.
Warning about damage from sudden depressurization cycles and mitigation methods.
Requirements before installing, including reading manuals and using specified parts.
Instructions for installing shut-off valves, piping, and drain tubing.
Filling the tank with desiccant and connecting automatic drains.
Steps to start the system, adjust the regulator, and supply air.
Procedure for shutting down the system and bleeding residual air.
Safety precautions required before performing any maintenance on the unit.
Checking the water separator for proper drainage at least once per shift.
Procedures for desiccant replacement and humidity indicator checks.
Instructions for replacing filters between coalescing and desiccant stages.
Instructions for replacing filters between the regulator and the desiccant tank.
Checking discharge tube and bowl for proper drainage and cleaning.
Cleaning or replacing the water separator filter element.
Replacing the coalescing filter element based on indicator or time.
Inspecting O-rings, plastic bowls, and ensuring proper reassembly.
Steps for cleaning the regulator's valve seat and body.
Disassembling the regulator and checking O-rings for damage.
Addressing erratic operation or leaks by cleaning or using a repair kit.
Understanding how the automatic drain functions and potential water intrusion issues.
Detailed steps to remove water from the automatic drain's float assembly.
Instructions for correctly reassembling the float guide components.
Key principles for installing shop air lines to prevent contamination.
Guidance on selecting pipe diameter to reduce pressure loss.
Recommendations for air drop placement and take-off methods.
Recommendations for pipe slope and installation of shut-off valves.
Emphasizing the importance of daily draining of contaminants from the system.
Information regarding the 1-Year Limited Warranty for the product.
Overview of the DAD-500 Desiccant Air Drying System's purpose and components.
Technical details for the 13-0041 (HAF-502) Water Separator Filter.
Technical details for the HAF-505 Oil Coalescing Filter.
Technical details for the Desiccant Dryer component.
Technical details for the HAR-507 Air Regulator.
Technical details for the VA-595 Main Air Supply Shut Off Valve.
Critical warnings regarding personal injury and property damage during operation.
Cautionary note about solvents and chemicals attacking plastic filter bowls.
Warning about damage from sudden depressurization cycles and mitigation methods.
Requirements before installing, including reading manuals and using specified parts.
Instructions for installing shut-off valves, piping, and drain tubing.
Filling the tank with desiccant and connecting automatic drains.
Steps to start the system, adjust the regulator, and supply air.
Procedure for shutting down the system and bleeding residual air.
Safety precautions required before performing any maintenance on the unit.
Checking the water separator for proper drainage at least once per shift.
Procedures for desiccant replacement and humidity indicator checks.
Instructions for replacing filters between coalescing and desiccant stages.
Instructions for replacing filters between the regulator and the desiccant tank.
Checking discharge tube and bowl for proper drainage and cleaning.
Cleaning or replacing the water separator filter element.
Replacing the coalescing filter element based on indicator or time.
Inspecting O-rings, plastic bowls, and ensuring proper reassembly.
Steps for cleaning the regulator's valve seat and body.
Disassembling the regulator and checking O-rings for damage.
Addressing erratic operation or leaks by cleaning or using a repair kit.
Understanding how the automatic drain functions and potential water intrusion issues.
Detailed steps to remove water from the automatic drain's float assembly.
Instructions for correctly reassembling the float guide components.
Key principles for installing shop air lines to prevent contamination.
Guidance on selecting pipe diameter to reduce pressure loss.
Recommendations for air drop placement and take-off methods.
Recommendations for pipe slope and installation of shut-off valves.
Emphasizing the importance of daily draining of contaminants from the system.
Information regarding the 1-Year Limited Warranty for the product.
The DeVilbiss DAD-500 (130026) Desiccant Air Drying System is a point-of-use system designed to remove dirt, water, oil, and water vapor from compressed air. It comprises a filter separator, coalescing filter, desiccant dryer, air regulator, and a main air supply shut-off valve.
The DAD-500 system ensures clean and dry air for various applications. It operates in stages:
Shipping Weight: DAD-500 = 35 lbs.
The DAD-500 is designed for easy installation and operation. It should be installed as close as possible to the point of use, with air flow directed as indicated by arrows on the filters. Minimum 1/2" NPT piping is recommended to avoid restricting air flow. The system includes vinyl tubing for automatic drains, which should be placed into appropriate receptacles to prevent kinking. The air regulator allows for precise pressure adjustment. Users are warned against using the product with hazardous gases or liquids other than compressed air, as this constitutes a misapplication and voids the warranty. Sudden depressurization cycles exceeding 20 PSIG should be avoided, as they can damage pressure gauges, filters, and cause desiccant "dusting." To mitigate this, a "slow closing solenoid valve" or an air adjusting valve at the solenoids outlet can be installed.
Regular maintenance is crucial for optimal performance and longevity.
Before any maintenance, always ensure the main air supply shut-off valve is closed and all residual air pressure is bled from the system.
General