VRT3-310 Brass Unloader Valve 4500 PSI | 3/8 Pressure Washer
VRT3-310 Brass Unloader Valve 4500 PSI | 3/8 Pressure Washer
VRT3-310 Brass Unloader Valve – High-Flow Pressure Washer Regulator
Upgrade your pressure washing setup with the VRT3-310 Unloader Valve — a heavy-duty, all-brass regulator built for demanding commercial and residential pressure washer applications. Rated up to 4,500 PSI and a maximum flow rate of 10.5 GPM, this unloader delivers the power and precision needed for high-performance cleaning tasks.
Made in Mainland China.
Key Features
- High-Performance Rated: Handles up to 4,500 PSI and 10.5 GPM flow rate — built for the most demanding pressure washing jobs.
- Premium Brass Construction: Crafted from high-quality brass for exceptional durability, corrosion resistance, and long-lasting reliable operation across varied environments.
- Built-In Bypass Pressure Relief: Features a by-pass port fitting that efficiently channels excess pressure away from the pump, maintaining safe and efficient operation at all times.
- Versatile 3/8" Fitting Compatibility: Equipped with dual 3/8" female inlet fittings and a 3/8" female outlet fitting, providing wide compatibility with most pressure washing systems and quick-connect setups.
- Easy Pressure Adjustment: An intuitive adjustment knob lets you dial in the exact pressure setting for each specific cleaning task — no tools required.
- Compact & Practical Design: Measures 18.5 × 8 cm with a sleek black and gold finish. Includes 1× VRT3-310 Unloader Valve.
Specifications
| Model | VRT3-310 Unloader |
| Material | Brass |
| Max Pressure | 4,500 PSI |
| Max Flow Rate | 10.5 GPM |
| Inlet Fittings | Dual 3/8" Female |
| Outlet Fitting | 3/8" Female |
| Size | 18.5 × 8 cm |
| Color | Black + Gold |
| Country of Origin | Mainland China |
Package Contents
- 1 × VRT3-310 Unloader Valve
Notes
- Actual color may vary slightly from images depending on monitor settings and lighting conditions.
- Please allow minor measurement deviations (±0.5 cm) for the listed dimensions.
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Frequently Asked Questions
Q: What pressure washer pumps is the VRT3-310 Unloader Valve compatible with?
A: The VRT3-310 Unloader Valve features dual 3/8" female inlet fittings and a 3/8" female outlet fitting, making it broadly compatible with ANNOVI-style plunger pump systems and most standard pressure washing setups that use 3/8" quick-connect fittings. Always verify your pump's port size before installation.
Q: How does the by-pass port on this unloader valve work?
A: When the trigger on your pressure washer wand is released, water flow must go somewhere. The by-pass port fitting on the VRT3-310 redirects that flow back to the pump inlet (or a buffer tank), preventing pressure build-up and protecting the pump head from damage during idle periods.
Q: Can I adjust the operating pressure on the VRT3-310 Unloader Valve?
A: Yes. The VRT3-310 includes a conveniently located adjustment knob that allows you to fine-tune the pressure setting to suit your specific cleaning task — from light-duty rinsing to full-force heavy-duty washing — without the need for extra tools.
Q: Is the brass construction suitable for outdoor or commercial use?
A: Absolutely. High-quality brass is naturally corrosion-resistant and performs reliably in wet, outdoor, and high-pressure environments, making this unloader valve an excellent choice for both commercial operators and serious home users.