PARKER CPOM3AAN50

Parker Pilot Operated Check Valve NG10 350 bar Description The Parker CPOM3AAN50 is a high-performance, pilot-operated check valve designed for modular hydraulic systems. As part of the reliable CPOM series, this NG10 (CETOP 5 / D05) valve provides leak-free closure in one direction, while allowing free flow in the opposite direction. It is ideal for load holding applications, preventing cylinder drift and ensuring system safety. The valve’s pilot-to-open function allows for controlled release of the held load upon receiving a hydraulic pilot signal. Built for demanding industrial environments, it operates reliably up to a maximum pressure of 350 bar (5000 PSI). Order now from profideals for expert support and fast delivery. Specifications Manufacturer: Parker Type: Pilot Operated Check Valve Series: CPOM Model: CPOM3AAN50 Size: NG10 / CETOP 5 / D05 Max. Operating Pressure: 350 bar / 5000 PSI Cracking Pressure: 5.0 bar (72.5 PSI) Seal Material: NBR (Nitrile) Mounting Interface: ISO 4401-05 Label Info Model Code: CPOM3AAN50 max.Pressure: 5000 PSI / 350 bar Date Code: LF Application This valve is commonly used in hydraulic presses, machine tools, material handling equipment, and mobile machinery where secure load holding and controlled motion are critical. Its modular design allows for easy integration into manifold blocks and valve stacks. Country of Origin Made in Slovenia. CO2 Impact By purchasing this reused component, you are contributing to a circular economy and helping to avoid 8.0 kg of CO2 emissions associated with the production of a new part. Availability This item is in stock and ready for immediate dispatch. FAQ What is the function of the pilot line in the CPOM3AAN50 valve?The pilot line receives an external pressure signal. This signal acts on the pilot piston inside the valve, which unseats the check valve poppet and allows fluid to flow in the reverse direction. Without pilot pressure, it acts as a simple check valve. Is the 5.0 bar cracking pressure adjustable on this model?No, the cracking pressure for the CPOM3AAN50 is fixed at 5.0 bar (72.5 PSI) as specified by the model code. Parker offers other versions in the CPOM series with different factory-set cracking pressures if required. What type of hydraulic fluid is compatible with the Nitrile (NBR) seals in this valve?The standard Nitrile (NBR) seals are compatible with most common mineral oil-based hydraulic fluids (HL, HLP). They are not recommended for use with synthetic fluids like phosphate esters or water-based fluids, which would require different seal materials like FPM (Viton). profideals 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. Last Update: March 13, 2026