Valve assembly systemin which either all valves for a machine control or only individual, recurring function groups (function blocks) are arranged on a block. In both cases the block has the task of connecting and linking individual devices. In this way the number of ports - and therefore the risk of leaks - is minimised. The requirements for ease of access and small installation volume are also met (Figure B 20).
A disadvantage is that
- They are not very flexible,
- expansions or modification of a control are practically impossible,
- Interchangeability is often limited and troubleshooting is made more difficult,
- They are only cost-effective for series production machines.
Figure B 20: Control block