PU220 valves use a pilot-operated, normally closed two-port mechanism for controlling air, water or oil. PU identifies the brass-body option, while SPU identifies the stainless steel option. Select the connection, flow capacity and coil voltage separately.
| Model | Port size | Orifice | Cv |
|---|---|---|---|
| PU220-03 | 3/8″ | 13mm | 4.5 |
| PU220-04 | 1/2″ | 13mm | 4.5 |
| PU220-06 | 3/4″ | 25mm | 12 |
| PU220-08 | 1″ | 25mm | 12 |
| PU220-12 | 1-1/4″ | 38mm | 22 |
| PU220-14 | 1-1/2″ | 38mm | 30 |
| PU220-20 | 2″ | 50mm | 48 |
| Parameter | PU220-03 through PU220-20 |
|---|---|
| Media | Air, water and oil |
| Actuation and rest state | Pilot operated; normally closed |
| Fluid viscosity | Up to 50cSt |
| General operating pressure range | 0.5-10kgf/cm² |
| Maximum pressure limit | 15kgf/cm²; not the normal switching range |
| Working temperature | -5-80°C |
The illustrated PU220-06 carries a 0.15-0.8MPa operating-pressure nameplate. Use that narrower range for this configuration; the general family range does not increase an individual valve's marked rating.
| Code element | Meaning or selection |
|---|---|
| PU / SPU | Brass / stainless steel body |
| 220 | Pilot-operated two-position, two-port valve |
| Connection code | 03: 3/8″; 04: 1/2″; 06: 3/4″; 08: 1″; 12: 1-1/4″; 14: 1-1/2″; 20: 2″ |
| Coil voltage | AC220V, AC110V, DC12V or DC24V |
Example: PU220-03-AC220V specifies a brass valve with a 3/8″ connection and an AC220V coil. The gallery also shows a compact PU220-02 configuration; the dimensions and flow values below apply only to the listed PU220-03 through PU220-20 models.
A, B and S are in millimeters. S is the body width shown as C in the outline drawing. These dimensions apply to PU220 bodies and are not specified for SPU versions.
| Model | Port | A | B | S / C |
|---|---|---|---|---|
| PU220-03 | 3/8″ | 66.5 | 106.5 | 48 |
| PU220-04 | 1/2″ | 66.5 | 106.5 | 48 |
| PU220-06 | 3/4″ | 96 | 126 | 70 |
| PU220-08 | 1″ | 96 | 126 | 70 |
| PU220-12 | 1-1/4″ | 131 | 145.5 | 96 |
| PU220-14 | 1-1/2″ | 131 | 145.5 | 96 |
| PU220-20 | 2″ | 160 | 160.5 | 112 |
