MAC Solenoid 92 series is a four-way slide valve, controlled by a small direct acting four-way solenoid valve - secondary for air valve manufacturing. 4 Guide valves mean low operating pressure - no piston - and little resistance. The balanced pilot design means that the shift force is consistently high and response time is repeatable regardless of inlet pressure fluctuations. More information about certifications (e.g. UL, CSA, RoHS, and CE)