The ASCO Numatics Series ISO 15407-2-18 is an 18 mm high-speed, heavy-duty valve line designed for general service on all types of automation. The valves comply with ISO standard 5599/2 for valve-unit-to-base interchangeability. Direct-solenoid and solenoid pilot-actuated models are available. These multi-purpose valves employ the patented Numatics spool-and-sleeve assembly for maximum reliability and durability.