The 1/4 NPSF, 25mm-wide 420 series features a compact design, high flow rate, and low cost. It is a direct-acting solenoid valve, with the 4-way version capable of reliable operation from vacuum to 125 psi. It is highly versatile. The tubular valve offers functions such as normally closed, normally open, diverter, or selector for 3-way valves, as well as 4-way configurations. It is ideally suited for reliably controlling double-acting cylinders with bore sizes up to 4 inches (100 mm). Manufactured to Humphrey's industry-leading stringent leakage requirements. Made in the USA. Complies with RoHS standards.