High-Pressure Relief Valves — Up to 6,000 PSIG
Extreme-pressure industrial systems—oil and gas production, refining, power generation, and specialty manufacturing—require precision relief protection at pressures exceeding 2,500 PSIG up to 6,000 PSIG and beyond. Aquatrol’s high-pressure relief valves use pilot-operated designs for stability, redundant configurations for safety-critical service, and materials engineered for extreme conditions. Custom engineering and certification—request a quote.
High-Pressure Relief System Design
High-pressure systems (above 2,500 PSIG) experience extreme loadings and response requirements that demand specialized valve design. Direct-acting valves cannot provide stable, proportional relief at ultra-high pressures; pilot-operated designs with amplification ratios are essential. Aquatrol manufactures pilot-operated high-pressure relief with proven performance in oil and gas, power generation, and specialty process applications.
Redundancy and safety-critical design are standard for high-pressure systems. Dual relief configurations, block isolation, test ports, and pressure limiting are all engineered into high-pressure manifolds. Failure analysis and worst-case design ensure multiple-failure tolerance and predictable safe state.
High-pressure materials selection is critical—standard stainless steels can experience brittle fracture or stress corrosion cracking. We specify appropriate alloys (duplex, super-duplex, specialty steels) with fracture toughness and fatigue analysis. Every high-pressure system undergoes detailed engineering review and third-party certification.
| Series | Pressure Range | Flow Capacity | Design Type |
|---|---|---|---|
| 55 | 3,000–6,000 PSIG | Up to 50,000 CFM | Pilot-operated |
| 120 | 2,500–5,000 PSIG | Up to 45,000 CFM | Pilot-operated |
| 141 | 2,500–6,000 PSIG | Up to 40,000 CFM | Pilot-operated |
| 747 | 2,000–4,000 PSIG | Up to 30,000 CFM | Advanced pilot-op |
| 748 | 3,000–6,000 PSIG | Up to 50,000 CFM | Custom-engineered |
Common Applications
- Oil and gas wellhead and separator relief (API 527)
- Refinery process equipment high-pressure relief
- Power generation and utility equipment protection
- High-pressure gas compressor and piping protection
- Specialty manufacturing equipment relief
- Research facility and test equipment protection
- Emergency depressurization and safety systems
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