***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 Hydraforce directly.***
The Hydraforce HSV12-28-0-U-0 (5542150) is a high-performance hydraulic cartridge valve designed for use in applications that require reliable load holding or blocking with low internal leakage in both directions. The valve operates as a 2-way, piloted, poppet-type, normally closed, and bidirectional device. When energized, it permits flow in both directions; when de-energized, it securely blocks flow. This model includes a manual override feature which allows for increased flow by pulling on the knob after pushing down and rotating it 180 degrees—this function is primarily intended for emergency use rather than continuous operation. The valve boasts a hardened seat ensuring longevity and minimal leakage, alongside optional coil voltages and terminations to suit diverse operational needs. Its efficient wet-armature construction and interchangeable voltage cartridges enhance its versatility and ease of use. The unit is designed with a molded coil design that is compact and robust, capable of withstanding up to IP69K for waterproofing requirements. Key specifications include a maximum pressure rating of 420 bar (6090 psi), proof pressure up to 690 bar (10000 psi), and burst pressure reaching 1380 bar (20000 psi). It supports a flow rate up to 113.6 lpm (30 gpm) with exceedingly low maximum internal leakage. The valve's cycle life extends up to one million cycles, demonstrating its durability and reliability in demanding environments. Temperature adaptability ranges from -40°C to +100°C with various seal options available including Buna N, fluorocarbon, and urethane—each providing different temperature tolerances which cater to specific operational conditions. This model does not have any orientation restrictions during installation, offering further flexibility in application configurations.