Johnson Controls A-4000-635 Filter Element

The Johnson Controls A-4000-635 is a high-efficiency 5 SCFM filter element designed for critical air filtration within pneumatic control systems. Engineering for reliability, this dry type filter features a 1/2 inch NPT connection and delivers a 99% efficiency rating at 10 microns. Its robust design is purpose-built for intake air filtration, effectively removing contaminants to protect sensitive downstream components like the A-4400 Series air compressors. The A-4000-635 filter is housed in a durable steel casing with a baked enamel finish, making it suitable for both indoor and outdoor installations where consistent air quality is non-negotiable for system longevity.

When you are performing field maintenance on pneumatic control accessories, ensuring the integrity of the intake air filter is paramount. This replacement filter element serves as a direct cross-reference for part 20RF89 and is the standard module for A-4000-155 intake filters. By maintaining a clean 5 cubic feet per minute airflow, technicians can prevent premature wear on pneumatic actuators and controllers. This OEM-spec Johnson Controls A-4000-635 ensures that your HVAC pneumatic system remains compliant with nominal industry standards for clean, dry air delivery.

• High Filtration Efficiency: Achieves 99% efficiency at 10 microns to prevent debris from reaching critical pneumatic controls.
• Industrial Build Quality: Steel housing with a baked enamel finish provides superior protection in demanding mechanical rooms.
• Standardized Compatibility: Specifically designed for A-4400 Series units and A-4000-155 intake assemblies.
• Reliable Flow Performance: Supports a steady 5 SCFM (2.4 L/s) capacity to meet the demands of small to mid-sized pneumatic loops.

When should the Johnson Controls A-4000-635 be replaced?
Replace the filter element if you observe a significant pressure drop across the intake or as part of your annual preventative maintenance schedule to ensure no contaminants bypass the 10-micron media.

Is this filter suitable for outdoor air compressors?
Yes, the baked enamel finish and steel construction are engineered to withstand various environmental conditions, though standard weather protection for the overall unit is always recommended.

Will this work with 1/2 inch NPT piping?
The A-4000-635 is specifically engineered for 1/2 inch NPT connections, ensuring a secure and leak-free fit within the A-4000 Series intake housings.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.