<h2>Overview</h2>
<p>The <strong>Hankison HMD20-3</strong> is a membrane-based air dryer from SPX Hankison engineered for compact, point-of-use compressed air dehydration. This unit operates passively—requiring no electrical power—making it ideal for locations where electrical hookup is impractical or unavailable. The HMD20-3 combines reliability with ease of installation to maintain optimal moisture levels in pneumatic systems.</p>
<h2>Key Features</h2>
<ul>
<li>No electrical power required—passive operation via sweep air mechanism</li>
<li>Hollow membrane fiber bundle technology for efficient dehydration</li>
<li>Maintains dew point performance across wide operating range</li>
<li>Compact footprint suitable for point-of-use applications</li>
<li>Standard NPT connection sizes for easy system integration</li>
</ul>
<h2>Technical Specifications</h2>
<ul>
<li><strong>Flow Capacity:</strong> 7.8 SCFM @ 100 PSIG</li>
<li><strong>Maximum Pressure:</strong> 175 PSIG (12 bar)</li>
<li><strong>Connection Size:</strong> 3/8" NPT (inlet/outlet)</li>
<li><strong>Housing Material:</strong> Standard aluminum/composite</li>
<li><strong>Dew Point Range:</strong> -40°F to +50°F capability</li>
<li><strong>Operating Principle:</strong> Hollow membrane fiber bundle with sweep orifice</li>
<li><strong>Dimensions:</strong> Approximately 15.3" L × 4.2" W</li>
<li><strong>Series:</strong> HMD20 Membrane Dryer Series</li>
</ul>
<h2>Typical Applications</h2>
<ul>
<li>Pneumatic tool and equipment protection from moisture damage</li>
<li>Small manufacturing cells and assembly stations requiring point-of-use drying</li>
<li>Laboratory and analytical instrument air supply conditioning</li>
<li>Remote or outdoor locations where electrical supply is unavailable</li>
<li>Packaging and light industrial automation requiring dry compressed air</li>
<li>Dental and medical equipment air line dehydration</li>
</ul>
<h2>Compatibility & Replacements</h2>
<h3>Compatible With</h3>
<ul>
<li>Standard pneumatic compressor systems (reciprocating, rotary screw, rotary vane)</li>
<li>3/8" NPT pneumatic piping and fittings</li>
<li>Compressed air line filters (upstream pre-filtration recommended)</li>
<li>Hankison HF Series airline filters for multi-stage air treatment</li>
</ul>
<h3>Replaces / Drop-In Replacement For</h3>
<ul>
<li>Legacy Hankison HMD20-3 units in existing installations</li>
<li>Other small-capacity (7–8 SCFM) membrane dryer models with 3/8" NPT connections—verify pressure rating and capacity match before substitution</li>
</ul>
<h3>Works With</h3>
<ul>
<li>Passive pneumatic systems (no electronic control required)</li>
<li>Standard ISO 4401 and DIN 24342 pneumatic component standards</li>
<li>Membrane dryer evaluation per CAGI (Compressed Air & Gas Institute) Standard ADF 700</li>
</ul>
