SUN HYDRAULICS
DMDATRV712

***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 DMDATRV712 (DMDATRV712) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is uniquely designed for fatigue-rated service at pressures up to 5000 psi (350 bar). It features closed transitions between Spools B and R which enhances performance by providing faster and more consistent response times at the cost of lower capacity, making it ideal for pilot control applications where capacity is less critical. The DMDATRV712 operates without requiring a minimum hydraulic pressure, ensuring reliable functionality in a variety of setups. It includes options for manual override controls (D, L, and T types), each designed with a detent mechanism suitable for temporary actuation and rated for approximately 7,000 mechanical cycles. The valve's wet armature design allows the working fluid to surround the armature, affecting fluid integrity if exposed to high temperatures over extended periods\u2014particularly important when using water-glycol mixtures. This model is compatible with EPDM seals specifically for use with phosphate ester fluids; however, exposure to petroleum-based fluids should be avoided as it can damage the seals. The interchangeable coils can be mounted in either direction on the tube and are compatible with other Sun Series 1 solenoid products. Furthermore, the valve incorporates Sun\u2019s floating style construction which helps minimize internal parts binding due to installation torque or machining variations of the cavity/cartridge. Key specifications include a flow capacity of 12 gpm (45 L/min), typical response time of 50 ms, maximum leakage at 3000 psi set at 5 in\u00b3/min., and a switching frequency up to 15,000 cycles per hour. The manual override requires an actuation force of about 5 lbs at 1000 psi per port. Installation guidelines suggest a torque between 30 - 35 lbf.ft (41 - 47 Nm), ensuring secure and efficient assembly within hydraulic systems.