***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 HSV12-20-0-U-00 (5540000) is a solenoid-operated, 2-way, normally closed, poppet-type, screw-in hydraulic cartridge valve. This valve is specifically designed to function as a load holding or blocking valve in applications that demand low internal leakage. During operation in its de-energized state, the HSV12-20-0-U-00 acts as a check valve allowing flow from port 1 to port 2 while blocking flow in the reverse direction. When energized, the poppet lifts to open the flow path from port 2 to port 1, though it severely restricts flow from port 1 to port 2. The valve is engineered for high-pressure operations with a pressure rating of up to 350 bar (5075 psi) and can handle proof pressures up to 690 bar (10000 psi). It has a burst pressure capacity of up to 1380 bar (20000 psi). The maximum flow rate through the valve is approximately 113.6 liters per minute (30 gallons per minute), with an exceptionally low maximum internal leakage of only seven drops per minute under certain conditions. Key features include a continuous-duty rated coil, hardened seat for durability and minimal leakage, and optional coil voltages and terminations. The efficient wet-armature construction ensures reliable performance while being voltage interchangeable across cartridges. The unit also boasts a unitized, molded coil design with an optional manual override feature for emergency use. Additionally, waterproof E-Coils are available that are rated up to IP69K for enhanced durability against environmental elements. The HSV12-20-0-U-00 offers versatility with its compatibility with various seals like Buna N, fluorocarbon, and urethane depending on the operating temperature requirements which range broadly from -40°C to +204°C (-40°F to +400°F). This makes it suitable for diverse hydraulic systems requiring precise control and reliability under varying environmental conditions.