SUN HYDRAULICS
DMDAMRN912N

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics DMDAMRN912N (DMDAMRN912N) is a solenoid-operated, 3-way, 2-position cartridge valve that functions as a direct-acting, balanced spool directional valve. This unit is particularly noted for its high performance due to the closed transition between Spools B and R, which ensures faster and more consistent response times when used as pilot controls. The valve's design allows it to operate without any minimum hydraulic pressure requirement. Featuring a fatigue rating of 5000 psi (350 bar) for the solenoid tube assembly, the DMDAMRN912N is built for durability and robust performance. It incorporates a wet armature design where the working fluid surrounds the armature; this is crucial in applications where the coil may be energized for extended periods, potentially affecting fluid integrity over time. The model also supports interchangeable coils with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. The manual override feature in models with D or L control uses a detent mechanism designed primarily for temporary actuation, with an expected mechanical life of about 7,000 cycles. For environments using phosphate ester fluids, cartridges configured with EPDM seals are recommended to prevent damage from petroleum-based fluids. This valve model offers additional features including a floating style construction to minimize internal parts binding\u2014caused by excessive installation torque or variations in cavity/cartridge machining\u2014and has a switching frequency capability of up to 15,000 cycles per hour. With a flow capacity of up to 12 gpm (45 L/min) and quick response times typically around 50 ms, the DMDAMRN912N provides efficient control for various hydraulic applications while maintaining minimal leakage and high operational standards.