| 252 MC | 5/2 pneumatic pilot, spring return |
| 252 CFP | 5/2 pneumatic pilot, pneumatic spring return |
| 252 CC | 5/2 double pneumatic pilot |
| 252 CCD | 5/2 double pneumatic pilot, with differential |
| 252 ME | 5/2 solenoid pilot, spring return |
| 252 EFP | 5/2 solenoid pilot, pneumatic spring return |
| 252 EE | 5/2 double solenoid pilot |
| 252 ME AS | 5/2 solenoid pilot with separate air supply, spring return |
| 252 EE AS | 5/2 double solenoid pilot with separate air supply |
| 253C CC | 5/3 closed centres, double pneumatic pilot |
| 253A CC | 5/3 open centres, double pneumatic pilot |
| 253P CC | 5/3 pressurized centres, double pneumatic pilot |
| 253C EE | 5/3 closed centres, double solenoid pilot |
| 253A EE | 5/3 open centres, double solenoid pilot |
| 253P EE | 5/3 pressurized centres, double solenoid pilot |
| 253C EE AS | 5/3 closed centres, double solenoid pilot with separate air supply |
| 253A EE AS | 5/3 open centres, double solenoid pilot with separate air supply |
| 253P EE AS | 5/3 pressurized centres, double solenoid pilot with separate air supply |
