5 ways 2 or 3 positions distributors and electric distributors can be used mounted on individual or ganged bases.
These standards are ISO 5599/1, according to which certain dimensions are mandatory, namely, the mounting surface, the pitch of the fastening screws, the characteristic of the electric pilot, the flow rate, the pneumatic connections, and so on.
The design is based on the balanced spool principle with pneumatic or electropneumatic actuators and resetting by mechanically or pneumatically operated spring.
The 3 position closed centres, are obtained by spring operation.
The feed to the actuators on the distributors can be provided either by pressure intake from inlet 1(autofeed) or through the base from inlets 12 and 14 (external feed); there are two separate types of these distributors: one is the series 1000 and the other is the series 1010.
The serie 1000 includes size 1 and 2 and are built of die-cast aluminium. the selection is made by turning a seal fitted between body and operator by 180°, so to utilize external-feed pilot or with internal feed.