Description
Overview:
The Brass and Steel VRT3 Unloader Valve is a non-genuine replacement valve for pressure washers and other high‐pressure cleaning machines. Built from durable brass and steel, it regulates system pressure and diverts water to bypass when the trigger is released, helping protect the pump and hose set. It provides BSPF 3/8" (approx. 9.5 mm) inlet, outlet and bypass ports, plus a BSPF 1/4" (approx. 6.35 mm) gauge port for pressure monitoring. Suitable for water temperatures up to 90°C, it handles flows up to 40 litres per minute (10.6 gallons per minute) and pressures up to 220 bar (3190 psi). This VRT3‐pattern unloader is a practical choice for maintaining consistent performance on electric, petrol, or diesel pressure washer units used in workshops, facilities maintenance and site cleaning.
Key Features:
- Brass and steel construction for strength, corrosion resistance and long service life
- Non‐genuine part offering a cost‐effective alternative to OEM VRT3 valves
- BSPF 3/8" (approx. 9.5 mm) inlet, outlet and bypass for straightforward plumbing
- BSPF 1/4" (approx. 6.35 mm) gauge port to aid accurate pressure setup and checks
- Handles up to 40 L/min (10.6 gpm) for mid to heavy‐duty washer outputs
- Rated to 220 bar (3190 psi) for demanding cleaning tasks
- Suitable for water temperatures up to 90°C for hot‐water compatible systems
- Adjustable pressure control to fine‐tune system performance and protect components
- Helps prevent pump over‐pressurisation by diverting flow to bypass when the gun is closed
- Compact inline form factor for easy integration and replacement
Typical Applications:
Used on commercial and domestic pressure washers, forecourt and fleet washers, plant and equipment cleaning rigs, agricultural washdown stations, and facilities maintenance systems. Ideal for replacing worn or sticking unloaders to restore safe pressure control, smooth trigger operation and consistent cleaning performance across a range of cold or warm water high‐pressure setups.
Also known as:
Pressure regulating valve, bypass valve, pressure control valve, pump relief valve, pressure washer dump valve, VRT‐3 unloader, VRT series unloader, washer bypass regulator.
Alternate Part Numbers:
300 5299, 3005299
Product Specifications
| L&S Part No. | 300 5299 |
|---|---|
| Part Type | Non Genuine Part |
| Unit of Sale | 1 |
| Machine Type | Pressure Washers |
| Key Features | - Brass and steel construction for durability - BSPF 3/8" ports for easy plumbing - Handles up to 40 L/min flow rate - Rated to 220 bar pressure - Suitable for water temperatures up to 90°C |

