The M35 series valve, available with or without an EEZ-ON (soft-start) module, is designed for external monitoring for safe, redundant operation of the valve internals. The valve is designed to supply air to a zone or entire machine or system until signaled to shut off and exhaust residual downstream pneumatic energy from the machine. This reduces the hazards associated with the presence of residual energy during employee access or production-related minor servicing. Ross Serpar Crossflow technology is incorporated to meet the demands of Cat. 4, PL e applications. The valves are available in ½ and ¾ port sizes.