These miniature solenoids are suitable for the pilot operation of larger valve. The ZM/48 and ZM/49 are 'normally closed' types and are also used as pilot operators on the majority of Nucon solenoid pilot valves. The ZM/148 and ZM/149 models are very similar but are 'normally open' types. These models feature a manual override as standard. Individual manifolds are available for 2, 3 or 4 valves.

All these valves feature a snap-lock retainer which enables the coils to be replaced through 360^o in 90^o steps. The terminal box can be fitted in either of two positions at 180^o to each other.

Coils are available separately as replacements for these valves and for those solenoid pilot valves using these solenoids.