SUN HYDRAULICS
DMDATRV748

***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 DMDATRV748 (DMDATRV748) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for direct-acting operation. This balanced spool directional valve is notable for its robust construction and capability to handle a maximum operating pressure of up to 5000 psi (350 bar), making it suitable for high-pressure applications. The valve features a unique closed transition between Spools B and R, enhancing performance by providing faster and more consistent response times, particularly beneficial in pilot control applications where capacity is less critical. The DMDATRV748 is engineered with a wet armature design, allowing the working fluid to surround the armature which helps in managing the heat generated by the coil during long periods of energization. However, this design requires careful consideration of the fluid type used; specifically, EPDM seals in this model are compatible only with phosphate ester fluids and should not be exposed to petroleum-based fluids. This model also boasts interchangeable coils with other Sun Series 1 solenoid products and offers flexibility in mounting direction on the tube. It incorporates Sun's floating style construction which minimizes internal parts binding due to installation torque or machining variations of cavity/cartridge. The manual override feature includes a detent mechanism designed for temporary actuation with an expected mechanical life of around 7,000 cycles. Key specifications include a flow capacity of 12 gpm (45 L/min), typical response time of 50 ms, and maximum leakage at 3000 psi set at 5 in\u00b3/min. The valve maintains a switching frequency capability up to 15,000 cycles/hr. Installation requires specific attention to torque settings between 30 - 35 lbf ft (41 - 47 Nm) to ensure optimal performance and longevity.