INGERSOLL RAND ARO 651780-C1B-B

<h2>Ingersoll Rand ARO High Pressure Material Regulator 2500 PSI 651780-C1B-B</h2> <h3>Description</h3> <p>This Ingersoll Rand ARO 651780-C1B-B is a high-pressure material regulator, also known as a back pressure regulator. It is engineered to provide precise and reliable control of fluid pressure in a wide range of industrial applications. Its robust carbon steel construction ensures long-term performance under demanding conditions, managing materials such as paints, coatings, lubricants, and adhesives.</p> <h3>Specifications</h3> <ul> <li>Manufacturer: Ingersoll Rand ARO</li> <li>Model: 651780-C1B-B</li> <li>Type: High-Pressure Material Regulator</li> <li>Maximum Regulated Pressure: 2500 PSI (172.4 bar)</li> <li>Body Material: Carbon Steel</li> <li>Seal Material: Buna-N</li> <li>Port Size: 1/2 inch NPTF</li> </ul> <h3>Label Info</h3> <ul> <li>Model: 651780-C1B-B</li> <li>Serial No: F0123 004</li> <li>Max. Regulated Pressure: 2500 PSI 172.4 BAR</li> </ul> <h3>Application</h3> <p>This regulator is ideally suited for applications requiring stable upstream pressure control. Common uses include paint circulation systems, adhesive and sealant dispensing, lubrication systems, and chemical transfer lines where consistent material pressure is critical for process quality.</p> <h3>Country of Origin</h3> <ul> <li>USA</li> </ul> <h3>CO2 Impact</h3> <p>By choosing this reconditioned regulator, you are contributing to a circular economy and avoiding approximately 5.0 kg of CO2 emissions. This saving is comparable to the emissions from driving a standard car for 25 kilometers.</p> <h3>Availability</h3> <p>This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.</p> <h3>FAQ</h3> <strong>What is the difference between this back pressure regulator and a standard pressure regulator?</strong><br><p>A standard regulator controls downstream pressure to a set point, while this back pressure regulator is installed downstream of equipment to control and maintain a set upstream pressure.</p> <strong>Are the Buna-N seals in the 651780-C1B-B compatible with all fluids?</strong><br><p>Buna-N (Nitrile) seals offer excellent resistance to petroleum-based oils, fuels, and some solvents. However, they are not recommended for highly polar solvents like ketones or automotive brake fluid. Always verify chemical compatibility for your specific application.</p> <strong>Can this regulator be rebuilt, and are service kits available?</strong><br><p>Yes, ARO regulators are designed to be serviceable. Repair kits, such as seal kit 637219-1C1-B, are widely available to replace wear parts and extend the operational life of the unit.</p> <p>Last Update: Friday, March 13, 2026</p> <p><em>spareparts2day is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.</em></p>