Rv-500 Pressure Relief 3/8MPT 1900-3500P
Rv-500 Pressure Relief 3/8MPT 1900-3500P
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- Item# 3130
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RV-500 Pressure Relief Valve 3/8 MPT - Dumps Pressure Before It Hurts Your Pump
The RV-500 is a pressure relief valve with a 3/8 MPT thread, made for systems running in the 1900 to 3500 PSI range. If pressure climbs past a safe point, it opens and vents the excess instead of letting it hammer your pump and plumbing. It's in stock at Sun Brite Supply in Gaithersburg, MD.
A relief valve is cheap insurance. A stuck unloader or a blocked line can spike pressure in a second, and this valve is what keeps that spike from cracking a pump head or blowing a hose. It's the kind of part careful contractors put on every rig they run.
Where Contractors Use This Relief Valve
Application and Compatibility
This component integrates into standard commercial pressure washing systems using industry-standard connections. Verify the specifications listed below against your existing equipment before ordering. Thread sizes, pressure ratings, and flow capacities must match your system for safe, leak-free operation. If you're not sure about compatibility, call (301) 519-9274 - we match parts to machines every day.
Contractor-Grade Quality
There's a real difference between professional equipment and consumer-grade alternatives sold at hardware stores. Consumer parts are built to a price point - they work fine for the homeowner who pressure washes their deck once a year. But put those same parts on a commercial rig running 8 hours a day, 5 days a week, and they fail fast. This pressure washer part is built for that daily grind. The materials, tolerances, and construction are designed for thousands of hours of commercial operation. That's why contractors come to Sun Brite Supply instead of buying online from unknown vendors - we carry the brands and specs that working professionals trust.
Installation and Setup
Verify Compatibility
Check the specifications against your existing equipment. Thread sizes, pressure ratings, and flow capacities must match for safe operation.
Install According to Specs
Follow the manufacturer's installation guidelines. Use appropriate thread sealant on pipe connections. Don't overtighten fittings.
Test Under Pressure
After installation, test at low pressure first. Check all connections for leaks before running at full operating pressure.
Compatible With
Specifications
| Product Type | Pressure Relief Valve |
| Thread Type | MPT |
| Ships From | Gaithersburg, MD |
Maintenance and Troubleshooting
Inspect this component during your regular maintenance routine. Check for wear, leaks, corrosion, and proper operation. Replacing worn parts on schedule prevents mid-job failures that cost you time and money.
When to Replace vs. Repair
If this pressure washer part shows signs of wear but is still functional, a rebuild kit or replacement seals may extend its service life at a fraction of the full replacement cost. However, if you see cracks, cross-threading, severe corrosion, or complete failure under pressure, replacement is the safer and more economical choice. Call (301) 519-9274 and we'll help you decide. Always follow OSHA equipment safety standards when working with high-pressure equipment.
Frequently Asked Questions
Need Help Choosing the Right Part?
30+ years of industry experience. We match parts to machines every day.
Why Buy From Sun Brite Supply?
Sun Brite Supply has served pressure washing contractors from our Gaithersburg, MD location since 2011. We stock the professional-grade parts and equipment you won't find at big box stores. Every in-stock order ships within 24 hours. Local customers can pick up the same day. Call (301) 519-9274 and talk to someone who knows this equipment - not a call center.