SUN HYDRAULICS
DMDAMRN536

***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 DMDAMRN536 (DMDAMRN536) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for hydraulic systems. This direct-acting, balanced spool directional valve is notable for its robust construction and the ability to operate without minimum hydraulic pressure. It features a fatigue rating of 5000 psi (350 bar), making it suitable for demanding applications. The valve's spools, designated B and R, are closed during the transition between positions to enhance performance at the expense of capacity. This feature is particularly beneficial when used as pilot controls where capacity is less critical but response time and consistency are paramount. The DMDAMRN536 incorporates a wet armature design allowing the working fluid to surround the armature, which helps in heat dissipation but requires careful selection of fluid types to avoid breakdown and varnish formation, especially with water-glycol mixtures. The manual override in models equipped with D or L control has a mechanical life expectancy of about 7,000 cycles and is intended for temporary actuation only. This model uses EPDM seals recommended for systems with phosphate ester fluids; however, these seals are susceptible to damage by petroleum-based fluids. For interchangeability and ease of maintenance, its coils can be swapped with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. Additionally, this valve benefits from Sun's floating style construction which minimizes internal parts binding due to excessive installation torque or cavity/cartridge machining variations. Key specifications include a maximum flow capacity of 12 gpm (45 L/min), typical response time of 50 ms, maximum operating pressure of 5000 psi (350 bar), and a switching frequency up to 15,000 cycles/hr. The DMDAMRN536 offers reliable performance with precise control in various hydraulic applications.