<h2>Overview</h2>
<p>The <strong>Parker FM3-20ED</strong> is a throttle check valve from Parker’s proven FM series. The FM3 is NG10-class (CETOP 05 / NFPA D05) with maximum pressure of 345 Bar (5000 PSI) and maximum flow of 113 LPM (30 GPM). The FM3 has a seal plate and can be inverted for meter-in applications, providing flexibility for both meter-in and meter-out flow control in hydraulic systems.</p>
<h2>Key Features</h2>
<ul>
<li>Compact, proven design ensures reliable operation in conventional stack systems</antml:cite></li>
<li>Large bypass check valves allow high flow at low pressure drop</cite></li>
<li>Two types of metering needle design enable selection of optimum throttle characteristics</cite></li>
<li>Suitable for general hydraulic applications and machine tools</cite></li>
<li>Easy configuration of conventional stack systems</cite></li>
</ul>
<h2>Technical Specifications</h2>
<ul>
<li><strong>Series:</strong> FM (Throttle Check Valve)</li>
<li><strong>Size Class:</strong> NG10 (CETOP 05 / NFPA D05)</li>
<li><strong>Maximum Pressure:</strong> 345 Bar (5000 PSI)</cite></li>
<li><strong>Maximum Flow:</strong> 113 LPM (30 GPM)</cite></li>
<li><strong>Cracking Pressure:</strong> 0.3 Bar (5 PSI)</cite></li>
<li><strong>Weight:</strong> 2.4 kg (5.2 lbs.)</cite></li>
<li><strong>Mounting:</strong> Sandwich manifold (CETOP 05 / NFPA D05)</li>
<li><strong>Configuration:</strong> Double-throttle, adjustable meter-in or meter-out</li>
</ul>
<h2>Typical Applications</h2>
<p>The FM3-20ED is suitable for general hydraulic applications and machine tools</cite>. The throttle check valve can also be used to influence the switching time of pilot operated directional valves</cite>. Common uses include:</p>
<ul>
<li>Flow metering in sandwich stack manifolds</li>
<li>Actuator speed control (meter-in or meter-out)</li>
<li>Pilot stage switching control for main directional valves</li>
<li>Industrial machine automation</li>
<li>Energy-efficient hydraulic circuits</li>
</ul>
<h2>Compatibility & Replacements</h2>
<h3>Compatible With</h3>
<ul>
<li>Parker NG10 sandwich manifold cavity systems</li>
<li>CETOP 05 / NFPA D05 cavity patterns</li>
<li>Conventional pilot-operated directional valves (NG10 class)</li>
<li>Industrial hydraulic pump and motor systems</li>
<li>Standard ISO 4401 sandwich ports A, B, P, T</li>
</ul>
<h3>Replaces / Drop-In Replacement For</h3>
<p>Verify compatibility with your system integrator before ordering. The FM3-20ED may be compatible with other FM-series throttle check valves of the same NG10 size class, depending on your specific cavity layout and application.</p>
<h3>Works With</h3>
<ul>
<li>Parker manifold design software and cavity templates</li>
<li>ISO 4401 sandwich cavity standards (CETOP 05)</li>
<li>Industrial PLC-based hydraulic control systems</li>
<li>Proportional and directional valve pilot systems</li>
<li>Standard hydraulic fluid (ISO VG 46)</li>
</ul>
