ISO 5599-1, series IS12, size 2
ISO 5599-1
Aventics ISO 5599-1 series IS12 valves in size 2 are electropneumatic directional control valves in a safety-rated design with a larger nominal flow than size 1. The range includes 5/3-way valves (IS12, size 2) for double-acting cylinder circuits. Variants cover 5/3-way switching functions with various centre positions; actuation is electropneumatic with a 24 VDC solenoid. As with size 1, the ISO 5599-1-compliant port dimensions allow mounting on size-2 standard sub-base plates.
| Feature | IS12 size 1 | IS12 size 2 |
|---|---|---|
| ISO 5599-1 nominal size | 1 | 2 |
| Nominal flow | Smaller | Larger |
| Switching functions | 5/2-NC, 3/2-PD | 5/3 variants |
| Typical cylinder | Small to medium bores | Medium to large bores |
| Safety function | EN ISO 13849 Cat. 3/PLd | EN ISO 13849 Cat. 3/PLd |
Typical applications: Safety circuits for medium and large pneumatic presses; guarding of machine axes with double-acting drives requiring higher air flow than size 1 can provide; safety valve islands for multiple cylinder axes at nominal size 2; EN ISO 13849 applications in manufacturing where PLd/Category 3 must be demonstrated for the pneumatic safety function.