***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 HSP10-20-0-U-00 (5503560) is a high-pressure, 2-way, piloted, poppet-type, proportional hydraulic cartridge valve specifically designed for low leakage blocking in load holding applications. This normally closed screw-in valve provides robust performance with features such as low internal leakage and efficient wet-armature construction. The valve operates by blocking flow from ports 2 to 1 when de-energized; however, it allows flow from ports 1 to 2 after overcoming spring forces, as indicated in its performance graph. When energized, it permits flow proportional to the applied current from ports 2 to 1 while severely restricting flow in the opposite direction. This model includes manual override options that are intended for emergency use rather than continuous-duty operations. It is equipped with waterproof E-Coils rated up to IP69K and offers options for manual override and linear metering. The HSP10-20-0-U-00 adheres to rigorous NFPA T2.6.1 specifications and has been tested at a verification level of 90% with an assurance level of 99%. Its pressure ratings are substantial, supporting up to 350 bar (5075 psi) operational pressure and withstanding up to 690 bar (10000 psi) proof pressure and 1380 bar (20000 psi) burst pressure. The valve's cycle life reaches one million cycles, showcasing its durability and reliability in demanding environments. The HSP10-20-0-U-00 supports a variety of fluids including mineral-based or synthetic hydraulic fluids with lubricating properties within a viscosity range of 7.4 to 420 cSt. It can operate effectively across a broad temperature range depending on the seal material used—ranging from -40°C to +100°C with standard Buna N seals. This model's design also includes no orientation restrictions during installation, making it versatile for various system configurations in hydraulic machinery used in load holding applications.