SPECIFICATIONS
| Type | Vacuum | Low pressure | Positive |
| Model | AP1-1 | AP1-2 | AP1-3 |
| Setting pressure range | -101~0 kPa (-29.8~0 inHg) | 0~100.0 kPa (0~14.5 psi) | 0~1.0 MPa (0~145 psi) |
| Withstand pressure | 300 kPa (43.5 psi) | 300 kPa (43.5 psi) | 1.5 MPa (217.5 psi) |
| Fluid | Filtered air, Non-corrosive/Non-flammable gas | Filtered air, Non-corrosive/Non-flammable gas | Filtered air, Non-corrosive/Non-flammable gas |