<h2>Overview</h2>
<p>The <strong>Daniel Chexter 1600-D check valve</strong> is a Class 125 cast iron tilting disc check valve engineered for industrial fluid systems. The 3″ size fits standard pipeline connections and features an eccentrically mounted, contoured disc design that minimizes pressure drop and allows smooth one-way flow. This model is widely used in pump discharge lines, boiler feed systems, compressor discharge headers, and general hydraulic/pneumatic protection applications.</p>
<h2>Key Features</h2>
<ul>
<li>Tilting disc design with eccentric mounting for efficient flow characteristics</li>
<li>Cast iron body rated for Class 125 ANSI pressure</li>
<li>Minimal cracking pressure—optimized for pump protection and efficient discharge</li>
<li>3″ nominal pipe size (NPS) flange or threaded connection option</li>
<li>Suitable for chilled/hot water, refrigeration, plumbing, and compressed air applications</li>
<li>Factory-tested for reliable performance and leak-free operation</li>
</ul>
<h2>Technical Specifications</h2>
<p>The following specifications are verified from manufacturer and distributor documentation:</p>
<ul>
<li><strong>Model:</strong> 1600-D</li>
<li><strong>Manufacturer:</strong> Daniel (Mueller Steam Specialty/Watts)</li>
<li><strong>Pressure Rating:</strong> Class 125 ANSI (190 psi @ 150°F for 2–12″ sizes)</li>
<li><strong>Connection Size:</strong> 3 inches</li>
<li><strong>Body Material:</strong> Cast Iron</li>
<li><strong>Valve Type:</strong> Tilting Disc Check Valve</li>
<li><strong>Available Sizes:</strong> 2″ to 36″ (series also available in sizes 5″ and 6″)</li>
</ul>
<h2>Typical Applications</h2>
<p>The Daniel Chexter 1600-D is ideal for:</p>
<ul>
<li>Centrifugal pump discharge protection and backflow prevention</li>
<li>Boiler feed water systems</li>
<li>Chilled and hot water loops (HVAC/refrigeration)</li>
<li>Compressed air and pneumatic system protection</li>
<li>Water filtration and treatment systems</li>
<li>Oxygen system applications (where approved)</li>
<li>Compressor and vacuum pump discharge lines</li>
</ul>
<h2>Compatibility & Replacements</h2>
<h3>Compatible With</h3>
<ul>
<li>Standard 3″ NPT (National Pipe Thread) and flanged piping systems</li>
<li>Chilled water, hot water, and hydronic systems</li>
<li>Refrigeration loop piping</li>
<li>Compressed air and pneumatic networks</li>
<li>Industrial pump discharge headers</li>
<li>Boiler and steamplant feedwater systems</li>
</ul>
<h3>Replaces / Drop-In Replacement For</h3>
<ul>
<li>Daniel Chexter 1600-D 3″ (direct replacement for same model, all sizes 2–36″)</li>
<li>Other Class 125 tilting disc check valves with equivalent 3″ connections and pressure ratings</li>
<li>Legacy Mueller Chexter models with matching pressure/size specifications</li>
</ul>
<h3>Works With</h3>
<ul>
<li>Standard industrial piping materials (carbon steel, stainless, PVC, copper)</li>
<li>Conventional pipe fitting standards (NPT threads, ANSI flanges)</li>
<li>Building automation and HVAC control systems</li>
<li>Pump monitoring and protection devices</li>
</ul>
