SUN HYDRAULICS
DMDAZRV812

***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 DMDAZRV812 (DMDAZRV812) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for precision control in hydraulic systems. This direct-acting, balanced spool directional valve features a closed transition between positions, significantly reducing oil loss during shifting\u2014a critical feature in pilot control circuits. The inclusion of a position switch provides verification that the valve is in the spring-biased position, enhancing operational security and reliability. Engineered for robust performance, the DMDAZRV812 can handle a maximum operating pressure of 5000 psi (350 bar) and has a flow capacity up to 12 gpm (45 L/min). The valve\u2019s response time is notably quick at approximately 50 ms, ensuring swift and efficient operation. It also supports a high switching frequency of up to 15000 cycles per hour. For installation, the valve requires specific tools such as a crow's foot wrench due to the position switch obstructing the use of a deep socket wrench. The solenoid tube assembly of this model is fatigue-rated for demanding applications, ensuring durability and longevity even under strenuous conditions. Additionally, it operates without needing a minimum hydraulic pressure which broadens its applicability across various hydraulic systems. The DMDAZRV812 uses EPDM seals suitable for systems with phosphate ester fluids; however, these are susceptible to damage from exposure to petroleum-based fluids. This model employs Sun Hydraulics' unique magnetic design in its solenoid which results in high efficiency and effective spool actuating force per watt expended. This leads to reliable valve shifting even under challenging operational conditions. Furthermore, the floating style construction minimizes internal parts binding that could result from excessive installation torque or cavity/cartridge machining variations. For diverse application requirements, it offers various coil termination and voltage options including models with surge protection.