SUN HYDRAULICS
DMDAZBN812

***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 DMDAZBN812 (DMDAZBN812) is a solenoid-operated 3-way, 2-position cartridge valve designed for efficient hydraulic control in various applications. This direct-acting, balanced spool directional valve ensures minimal oil loss during position transitions due to its closed transition design, which is crucial for maintaining performance in pilot control circuits. The inclusion of a position switch confirms the valve\u2019s placement in the spring-biased position, enhancing operational reliability. This valve operates without requiring a minimum hydraulic pressure and features a fatigue-rated solenoid tube assembly capable of handling up to 5000 psi (350 bar), making it suitable for high-pressure applications. It incorporates EPDM seals specifically for use with phosphate ester fluids; however, exposure to petroleum-based substances should be avoided as it can damage these seals. The DMDAZBN812 employs a wet armature design where the working fluid surrounds the armature which may require consideration regarding fluid selection and operating duration due to potential heat-related breakdowns. Installation of this sealed and factory-set unit requires specific tools like a crow's foot wrench due to the configuration of the position switch which obstructs the use of a standard deep socket wrench. Moreover, this model is not field serviceable and must be returned to the factory for any service or modifications, with any tampering likely voiding its warranty. The model also stands out with its floating style construction that minimizes internal part binding risks caused by excessive installation torque or cavity/cartridge machining variations. This construction coupled with a robust magnetic design of the solenoid ensures high efficiency and reliable valve shifting under various conditions. With options available for different coil terminations and voltages, including models with surge protection, this cartridge offers versatility while maintaining performance integrity across demanding operational scenarios.