SUN HYDRAULICS
DLDMDHV

***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 DLDMDHV (DLDMDHV) is a manually operated, 2-position, 2-way directional cartridge valve designed primarily for controlling the direction of flow in hydraulic circuits. This direct-acting, balanced spool valve can be configured as either normally open or normally closed based on operational requirements. It features Sun's TwistLock manual override mechanism which is specifically intended for intermittent, infrequent use. The DLDMDHV offers various control options including momentary twist control (option T), detent lock control (option L), and dual-operation control (option D). The momentary twist allows for a temporary shift by twisting the knob clockwise; upon release, the valve reverts to its original position. The detent lock option enables shifting the valve into a mechanically detented position by twisting the knob counterclockwise, which holds until manually reverted. The dual-operation combines both functionalities depending on the direction of the twist. It's crucial to note that these detented positions are not suitable for load holding but are meant for temporary shifting. Constructed with Sun\u2019s floating style design, this valve minimizes internal part binding due to installation torque or cavity/cartridge machining variations. The manual override is built to endure approximately 7,000 cycles, ensuring durability and reliability in operation. Key specifications include a flow capacity of 12 gpm (45 L/min), a maximum operating pressure of 5000 psi (350 bar), and an operating torque requirement of 10 lbf\u00b7in (1.2 Nm). Installation requires specific attention with a recommended torque of 30-35 lbf\u00b7ft (41-47 Nm). For maintenance or replacement needs, it uses a Viton seal kit under part number 990413006. Overall, the Sun Hydraulics DLDMDHV provides robust manual control in hydraulic systems where temporary and infrequent adjustment of flow direction is necessary.