SUN HYDRAULICS
HDDALCV4E24V

***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 HDDALCV4E24V (HDDALCV4E24V) is a sophisticated solenoid-operated check cartridge designed to integrate seamlessly into hydraulic systems, particularly for lift-lower applications. This hybrid valve combines a direct-acting solenoid poppet valve with a check function, allowing flow from the inlet port 2 to the system port 1 while blocking flow from port 2 to port 3 when the solenoid is de-energized. It features a robust design with a fatigue-rated solenoid tube assembly capable of withstanding pressures up to 5000 psi (350 bar), making it suitable for load-holding applications. The valve's wet armature design ensures that the working fluid surrounds the armature, which can be advantageous in managing heat generated by prolonged coil energization. However, users should be cautious when using fluids like water-glycol mixtures that may degrade at high temperatures. The HDDALCV4E24V offers several manual override options, although these are not compatible with weatherized coils. It incorporates Sun's floating style construction to minimize internal binding due to installation torque or machining variations. The cartridge has a capacity of 10 gpm (40 L/min) and features interchangeable coils compatible with other Sun Series 1 products, allowing for flexible installation and maintenance. Additionally, coil connector options provide protection ratings up to IP69K for enhanced environmental resilience. This valve fits into a T-11A cavity and requires an installation torque between 30 and 35 lbf-ft (41 and 47 Nm). The maximum valve leakage at a viscosity of 110 SUS (24 cSt) is minimal at only ten drops per minute under maximum pressure conditions. With its high switching frequency of up to 15,000 cycles per hour and a mechanical life expectancy of approximately 7,000 cycles for models equipped with manual controls, this product is engineered for reliability and performance in demanding hydraulic applications.