Pressure relief valves (prv)
Pressure relief valves (prv)
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Pressure relief valves (PRVs) are critical safety devices designed to automatically release excess pressure from a system, preventing equipment failure, pipeline ruptures, and catastrophic accidents. By opening at a predetermined set pressure, PRVs ensure system integrity and protect personnel, pipelines, tanks, and other process components.
At Petromarsh, we supply a wide range of industrial-grade pressure relief valves from globally recognized manufacturers, engineered for reliable performance across oil & gas, petrochemical, steam, power generation, and process industries.
Key Features
Key Features
Automatic overpressure protection
Fast-acting response at set pressure limits
Available in spring-loaded, pilot-operated, or weight-loaded designs
Multiple material options for corrosive, high-temp, or cryogenic services
Precise set pressure calibration and reseating
Compliant with ASME, API 520/526, ISO, and PED standards
Types of Pressure Relief Valves
Types of Pressure Relief Valves
Spring-Loaded Relief Valves
Simple, reliable design using a calibrated spring to control opening at set pressure.Pilot-Operated Relief Valves (PORVs)
Ideal for high-pressure systems where tight shutoff and stability are required.Thermal Relief Valves
Specifically designed to relieve minor pressure buildup caused by fluid expansion from temperature changes.Balanced Bellows Relief Valves
Protect against backpressure and offer corrosion resistance in aggressive service conditions.Cryogenic Relief Valves
Engineered for LNG, liquid oxygen, and other low-temperature applications.
Applications
Applications
Pressure vessels, storage tanks, and compressors
Gas and steam boilers
Chemical reactors and pipelines
Refineries and offshore platforms
Pump and pipeline protection systems
LNG, ammonia, and cryogenic installations
🤝 Why Choose Petromarsh?
🤝 Why Choose Petromarsh?
Authorized reseller of trusted control valve manufacturers
Technical assistance with selection, sizing, and integration
Cross-regional service: UK, Middle East, and Canada
Aftermarket support, spare parts, and accessories available
Competitive pricing and logistics management
📞 Get in Touch
📞 Get in Touch
Need help finding the right valve for your process?
Our engineering support team is ready to assist with selection, documentation, and delivery.
📧 Contact us today to discuss your requirements.
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