SUN HYDRAULICS
DMDAMPV71299

***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 DMDAMPV71299 (DMDAMPV71299) is a high-performance solenoid-operated 3-way, 2-position cartridge valve, designed for direct-acting operation with a balanced spool directional control mechanism. It operates seamlessly without the need for minimum hydraulic pressure, enhancing its utility in various applications. The valve features a robust solenoid tube assembly rated for 5000 psi (350 bar) service, ensuring durability and reliability even under high-pressure conditions. This model incorporates closed transitions between Spools B and R, optimizing performance by providing faster and more consistent response times at the cost of lower capacity, which is ideal when used as pilot controls. The manual override included in models with D or L control uses a detent mechanism designed primarily for temporary actuation, supporting mechanical life expectancy around 7,000 cycles. For environments utilizing phosphate ester fluids, cartridges equipped with EPDM seals are recommended to prevent damage from petroleum-based substances. Additionally, the wet armature design of this valve allows the working fluid to surround the armature which could be critical if the coil remains energized over extended periods. This design consideration helps manage heat dissipation but requires careful selection of fluid to avoid breakdown and varnish formation. The valve supports interchangeable coils with other Sun Series 1 solenoid products and features a floating style construction that minimizes internal part binding due to installation or machining variations. With a maximum operating capacity of 12 gpm (45 L/min) and rapid response time typically around 50 ms, the DMDAMPV71299 is suited for applications requiring precise control and swift actuation. Its design also accommodates frequent switching up to 15,000 cycles per hour without performance degradation.