When it comes to air compressor safety, few parts are as important as the pressure relief valve (PRV). This small but vital component prevents catastrophic overpressure by releasing excess air automatically. If your PRV is worn, leaking, or stuck, replacing it immediately is crucial—not only for equipment longevity but also for workplace safety.
This guide reviews the best industrial-grade air compressor PRVs in 2025. We’ll cover quick picks, a buyer’s guide, in-depth product reviews, a comparison table, FAQs, and a conclusion to help you make the right choice.
Quick Picks: Best Air Compressor PRVs
- Best Overall: Conrader ASME-Certified Pressure Relief Valve — Reliable, durable, and widely compatible.
- Best Value: Control Devices SRV Industrial Safety Valve — Affordable yet meets ASME standards.
- Best Premium: Kunkle High-Capacity Pressure Relief Valve — Industrial-grade valve for large compressors.
Buyer’s Guide: Choosing the Right PRV
- ASME Certification: Always ensure your PRV is ASME-rated for compliance and safety.
- Set Pressure: Match the PRV’s PSI rating to your compressor’s maximum pressure (commonly 125–200 PSI).
- Flow Capacity: Larger compressors need high-CFM relief valves to handle sudden surges.
- Material: Brass and stainless steel valves offer the best corrosion resistance and durability.
- Thread Size: Common sizes include 1/4”, 3/8”, and 1/2” NPT. Match your tank’s port size.
- Maintenance: Choose valves designed for long service life and easy replacement.
Detailed Product Reviews
1. Conrader ASME-Certified Pressure Relief Valve
Who it’s for: Shops and facilities needing a dependable all-around PRV.
- ASME certified for safety compliance
- Available in multiple PSI ratings (125–200)
- Brass construction with stainless steel spring
Pros: Reliable, long-lasting, easy to install.
Cons: Slightly more expensive than generic valves.
Final Verdict: The best all-around PRV for most compressors. Check availability.
2. Control Devices SRV Industrial Safety Valve
Who it’s for: Budget-conscious buyers who still need ASME-rated safety.
- Meets ASME requirements
- Brass body with stainless spring
- Multiple PSI settings available
Pros: Affordable, widely available, durable.
Cons: Not as high-flow as premium models.
Final Verdict: A great value choice for smaller compressors. See price.
3. Kunkle High-Capacity Pressure Relief Valve
Who it’s for: Large industrial shops requiring maximum flow and reliability.
- ASME-certified high-capacity valve
- Handles large CFM loads
- Rugged cast construction
Pros: Industrial strength, extremely reliable, built for heavy use.
Cons: Premium pricing.
Final Verdict: Best premium option for industrial-scale compressors. View details.
4. Campbell Hausfeld OEM Pressure Relief Valve
Who it’s for: Owners of Campbell Hausfeld compressors needing direct OEM fit.
- OEM replacement part
- Correct fit for Campbell Hausfeld models
Pros: Guaranteed fit, reliable performance.
Cons: Limited compatibility.
Final Verdict: The right choice for Campbell Hausfeld owners. Check availability.
5. Ingersoll Rand Safety Relief Valve
Who it’s for: Users who want OEM-level reliability for Ingersoll Rand compressors.
- OEM replacement valve
- Meets ASME standards
Pros: High-quality, proven reliability.
Cons: More expensive than universal valves.
Final Verdict: A must-have for Ingersoll Rand owners. View product.
6. Parker Hannifin High-Performance PRV
Who it’s for: Industrial users who demand the highest engineering standards.
- ASME-rated
- Engineered for high precision
- Brass and stainless build
Pros: Precision, durability, trusted brand.
Cons: Expensive, designed for industrial use.
Final Verdict: Ideal for high-end industrial facilities. Learn more.
Comparison Table
| Model | Certification | PSI Range | Material | Price Link |
|---|---|---|---|---|
| Conrader PRV | ASME | 125–200 | Brass/Stainless | View Price |
| Control Devices SRV | ASME | 100–175 | Brass | View Price |
| Kunkle High-Capacity | ASME | 150–200+ | Cast/Brass | View Price |
| Campbell Hausfeld OEM | OEM Certified | Factory Set | Brass | View Price |
| Ingersoll Rand OEM | ASME | Factory Set | Brass/Stainless | View Price |
| Parker Hannifin | ASME | Custom | Brass/Stainless | View Price |
FAQ
What does a PRV do on an air compressor?
It automatically releases excess pressure to prevent tank rupture and maintain safe operation.
How do I know if my PRV is bad?
If it constantly leaks, fails to release at rated pressure, or doesn’t reset properly, it should be replaced immediately.
How often should I replace a PRV?
Inspect annually and replace every 3–5 years, or immediately if it shows signs of failure.
Can I use a non-ASME valve?
No. For safety and compliance, always use an ASME-certified PRV rated for your compressor.
What size PRV do I need?
Match the valve’s PSI and flow rating to your compressor’s tank specifications. Check your user manual for exact requirements.
Conclusion
A reliable air compressor PRV is a must for safe operation. For most shops, the Conrader ASME Valve is the best overall choice. Budget buyers can count on Control Devices SRV, while industrial facilities should consider the Kunkle High-Capacity or Parker Hannifin options.
Don’t risk safety—upgrade your PRV today and protect your compressor and your team.