VB450 UNLOADER VALVE
Code: 1975

Product detailed description
PA VB450-200 high-flow unloader valve
This is the 200 bar version of the PA VB450 valve, manufacturer part number 60.4020.00. It regulates high-flow water systems and diverts flow through the bypass as required by the installation.
Technical specifications
- Rated pressure: 200 bar.
- Permissible pressure: 220 bar.
- Rated flow: 450 L/min.
- Rated water temperature: 90 °C.
- Brass body.
- Inlet and outlet: G 1 1/4 female.
- Bypass: G 1 1/2 female.
Select the valve according to the pump flow, working pressure and bypass arrangement. The permissible pressure is not the rated working pressure.
Additional parameters
| Category: | Unloader valves |
|---|---|
| Rated pressure (bar): | 200 |
| Max flow rate (l/min): | 450 |
| Body: | Brass |
| Inlet: | G 1" 1/4 F |
| Outlet: | G 1" 1/4 F |
| By-pass: | G 1" 1/2 F |
PA: valves and accessories for high-pressure cleaning
PA is an Italian manufacturer of components for pressure washers, vehicle washing and industrial cleaning equipment. Its portfolio covers pressure control, liquid delivery and operator accessories, helping equipment builders and service teams configure the complete cleaning circuit around the pump.
Product range and applications
PA products include unloader valves, spray guns, lances and other accessories used in high-pressure washing systems. The wider range also covers components for chemical application and specialised cleaning tasks. Applications extend from mobile pressure washers and car washes to cleaning installations in industrial environments.
Selection and system integration
Select each component according to the actual working pressure, water flow, temperature and connection type. An unloader valve must be compatible with the pump and circuit layout, while the gun, lance and nozzle need to work together at the intended operating point. Chemical compatibility and replacement-part identification are also essential for service work.
Browse our unloader valves and guns, lances and brushes.

