Description
Johnson Controls A-4000-604 Coalescing Filter Element
The Johnson Controls A-4000-604 is a replacement coalescing filter element designed to maintain clean, dry, and oil-free compressed air in pneumatic control systems. Rated at 20 SCFM, this element is engineered to deliver reliable filtration performance in demanding HVAC and building automation applications where air quality is critical to system operation.
Product Overview
Coalescing filter elements work by capturing and merging fine aerosol droplets of oil and water vapor from compressed air streams, preventing contamination from reaching sensitive pneumatic actuators, controllers, and other downstream components. The A-4000-604 is a genuine Johnson Controls replacement element, ensuring compatibility and consistent performance within Johnson Controls pneumatic air preparation systems.
Key Features
- Rated flow capacity of 20 SCFM for efficient air filtration
- Coalescing design removes oil aerosols and moisture from compressed air
- Genuine Johnson Controls OEM replacement element
- Protects downstream pneumatic actuators and controls from contamination
- Helps extend the service life of pneumatic control components
- Designed for use in HVAC and building automation pneumatic systems
Applications
- Pneumatic HVAC control systems
- Building automation and controls
- Compressed air preparation and treatment
- Replacement maintenance for Johnson Controls air preparation equipment
Why Replace Your Filter Element?
Regular replacement of coalescing filter elements is essential to maintaining system efficiency and protecting pneumatic components. A clogged or saturated element reduces airflow, increases pressure drop, and allows contaminants to pass through — leading to premature wear and costly repairs on actuators and controllers. The A-4000-604 makes routine maintenance straightforward with a direct OEM-fit replacement.
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