SUN HYDRAULICS DFFA-8DN

Sun Hydraulics DFFA-8DN Hydraulic Relief Valve Description The DFFA-8DN from Sun Hydraulics is a direct-acting, poppet-type, screw-in hydraulic cartridge relief valve. It is engineered to limit pressure in hydraulic circuits, providing reliable protection for your system components. This valve’s compact, cartridge-style design allows for easy integration into custom manifolds, making it a versatile solution for both mobile and industrial hydraulic systems. Specifications Manufacturer: Sun Hydraulics Model: DFFA-8DN Type: Direct-Acting Relief Valve Cavity: T-8A Maximum Flow Rate: 10 gpm (40 L/min) Maximum Operating Pressure: 5000 psi (350 bar) Seals: Buna-N (standard) Label Info Brand: SUN Model: DFFA 8DN Application This relief valve is ideal for applications requiring fast response times to pressure spikes, such as in accumulator circuits, hydrostatic transmissions, and load-holding applications where precise pressure control is critical. Country of Origin Manufactured in the USA by Sun Hydraulics, a leader in high-performance hydraulic components. CO2 Impact Choosing this reused component saves an estimated 0.34 kg of CO2 compared to a new one, contributing to a more sustainable operation. Availability This item is in stock and ready for immediate dispatch. Order now from profideals for expert support and fast delivery. FAQ What is the function of a direct-acting relief valve like the DFFA-8DN?A direct-acting relief valve uses a spring to hold a poppet on its seat. When system pressure exceeds the spring force, the poppet lifts, allowing fluid to bypass to the tank, thus limiting system pressure. This design provides a fast response time to pressure changes. What is the significance of the T-8A cavity specification?The T-8A designation refers to a standardized cavity geometry defined by Sun Hydraulics. This ensures that any valve designed for a T-8A cavity, like the DFFA-8DN, will fit correctly into a manifold or block machined with the same specifications, ensuring interchangeability. How do I adjust the pressure setting on this valve?The DFFA-8DN is a fixed-setting version of the DFFA valve series. The pressure setting is pre-set at the factory and is not field-adjustable. Always verify that the valve’s fixed pressure setting matches your application’s requirements before installation. 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. Last Update: Friday, March 13, 2026