Dayton 4ZL49 Pneumatic Air Preparation Assembly

Description:

The Dayton Air Preparation Assembly (4ZL49 and 4ZM20 with dual air hose connectors) is used in compressed air systems for filtering, regulating, and preparing air supply for pneumatic equipment. Commonly installed in industrial automation lines, air tool stations, manufacturing equipment, assembly systems, and maintenance shop air distribution setups requiring clean, regulated, and moisture-free compressed air. Maintenance teams and system integrators use this assembly for pneumatic system setup, air quality improvement, equipment protection, and replacement of air preparation units.

Applications:

The Dayton air preparation assembly is commonly used in industrial environments including pneumatic tool stations, automated production lines, packaging machinery, assembly equipment, and general plant air distribution systems where consistent air pressure regulation, filtration, and moisture removal are essential. The integrated components help ensure clean, stable compressed air supply for downstream pneumatic devices and machinery.

Technical Specifications:

• Manufacturer: Dayton
• Model / Part number: 4ZL49, 4ZM20
• Product type: Air preparation assembly (FRL system)
• Components: Filter, regulator, and air connectors
• Function: Air filtration, pressure regulation, and distribution
• Media: Compressed air
• Connection type: Inline pneumatic hose connectors
• Port size: Industrial air hose fittings (size varies by configuration)
• Pressure regulation range: Typically 0–150 PSI (model dependent)
• Filter type: Particulate and moisture separation element
• Body material: Aluminum alloy and engineering polymer
• Mounting type: Panel or inline mount
• Drain type: Manual or semi-automatic drain (model dependent)
• Application environment: Industrial pneumatic systems
• Compatibility: Standard compressed air distribution systems
• Assembly configuration: Modular FRL-style system

Common Replacements:

• SMC AC Series Air Preparation Unit
• Parker P3A Filter Regulator Assembly
• Festo LFR-1/4-D-MINI FRL Unit