<h2>Overview</h2>
<p>The <strong>Wilkerson WSA-04-FM0</strong> (cross-reference 5Z771) is an industry-standard liquid separator engineered to remove water and oil mist from compressed air systems. This condensate separator uses a combination of centrifugal action, impingement, and laminar flow principles to efficiently trap contaminants before they damage pneumatic tools, control valves, and actuators. The cast zinc housing with epoxy coating provides corrosion protection, while the quick-disconnect bowl design simplifies maintenance and serviceability.</p>
<h2>Key Features</h2>
<ul>
<li><strong>Automatic internal drain:</strong> Float-type mechanism automatically discharges collected liquid without manual intervention</li>
<li><strong>Low pressure drop:</strong> Less than 1 PSID differential maintains system efficiency</li>
<li><strong>Cast zinc housing:</strong> Durable, epoxy-painted for corrosion and wear resistance</li>
<li><strong>Quick-disconnect bowl:</strong> Tool-free removal and replacement for rapid service</li>
<li><strong>High-flow design:</strong> Optimized for 50 CFM at 100 PSI with minimal flow restriction</li>
<li><strong>Made in USA:</strong> Manufactured to Wilkerson’s precision pneumatic standards</li>
</ul>
<h2>Technical Specifications</h2>
<ul>
<li><strong>Model:</strong> WSA-04-FM0 (5Z771)</li>
<li><strong>Connection Size:</strong> 1/2″ NPT (air inlet and outlet)</li>
<li><strong>Maximum Operating Pressure:</strong> 200 PSI (13.8 bar)</li>
<li><strong>Maximum Flow Rate:</strong> 50 CFM @ 100 PSI</li>
<li><strong>Pressure Differential:</strong> Less than 1 PSID</li>
<li><strong>Operating Temperature:</strong> 32°F to 150°F (0°C to 66°C)</li>
<li><strong>Housing Material:</strong> Cast Zinc (epoxy-painted)</li>
<li><strong>Drain Type:</strong> Automatic Internal Float</li>
<li><strong>Overall Length:</strong> 7 5/16 inches</li>
<li><strong>Outside Diameter:</strong> 3 7/20 inches</li>
<li><strong>Weight:</strong> 2.6 lb</li>
</ul>
<h2>Typical Applications</h2>
<p>The WSA-04-FM0 is ideal for:</p>
<ul>
<li>Water separation downstream of aftercoolers and air receivers</li>
<li>Protection of heatless regenerative desiccant dryers</li>
<li>Compressed air systems in manufacturing, food processing, and pharmaceuticals</li>
<li>Pneumatic tool protection in industrial workshops and maintenance facilities</li>
<li>HVAC and refrigeration compressor discharge lines</li>
</ul>
<h2>Compatibility & Replacements</h2>
<h3>Compatible With</h3>
<ul>
<li>Standard compressed air piping systems with 1/2″ NPT connections</li>
<li>Wilkerson Pneumatic filtration systems and FRL components</li>
<li>HVAC and refrigeration air handling units</li>
<li>Industrial pneumatic networks up to 200 PSI operating pressure</li>
</ul>
<h3>Replaces / Drop-In Replacement For</h3>
<ul>
<li>Wilkerson 5Z771 (cross-reference part number)</li>
<li>Other WSA-04 series separators with internal float drain</li>
</ul>
<h3>Works With</h3>
<ul>
<li>Pneumatic aftercoolers and air receiver equipment</li>
<li>Wilkerson desiccant dryers and cartridge filters</li>
<li>Industrial compressed air regulators and lubricators</li>
<li>Standard NPT-threaded compressed air piping and fittings</li>
</ul>
