The PARKER 321H2523 is a high-performance, direct-acting 3-way solenoid valve designed for reliable control in general-purpose applications. As a normally closed valve, it keeps the inlet port blocked and connects the cylinder port to the exhaust port when de-energized. When the coil is energized, the valve shifts to connect the inlet port to the cylinder port. Constructed with a durable brass body and NBR seals, this valve offers a long service life and is suitable for use with air, inert gas, water, and light oil. Its robust and compact design makes it an ideal choice for a wide range of industrial automation and fluid control systems.