All-Stainless Steel Safety Valves — Corrosion & Clean Steam
Systems handling corrosive media, clean steam, condensate, or aggressive chemicals require all-stainless steel relief valve construction to prevent corrosion, contamination, and failure. Aquatrol manufactures stainless steel relief valves in 304, 316L, duplex, and super-duplex alloys rated for corrosive environments, high-temperature steam, and chemical service. Custom sizing and material selection—request a quote.
Stainless Steel Valve Durability & Performance
Carbon steel relief valves corrode in contact with steam, acidic condensate, chlorides, or moisture—causing internal degradation, seat erosion, and eventual failure. All-stainless steel construction eliminates corrosion, extends valve life, and prevents product contamination. Material selection (304 for mild conditions, 316L for moderate corrosion, duplex/super-duplex for extreme) depends on media and environment.
Stainless steel internals resist pitting, stress corrosion cracking, and general corrosion inherent in corrosive service. Our 316L series handles most aggressive applications; super-duplex handles extreme chloride exposure or dual acidic/alkaline media swings. Every material choice is validated against your specific media and operating conditions.
Clean steam applications—pharmaceuticals, food, semiconductor—require stainless steel to prevent iron contamination and product loss. Steam condensate is aggressive and causes rapid carbon steel corrosion; 316L stainless prevents this. Aquatrol specifies materials ensuring long service life and complete regulatory compliance.
| Series | Material Grade | Pressure Range | Best For |
|---|---|---|---|
| 740 | 316L stainless | 50–300 PSIG | Food, pharma, mild corrosion |
| 747 | Super-duplex | 50–1,500 PSIG | Extreme corrosion, offshore |
| 748 | Hastelloy C-276 | 50–1,500 PSIG | Maximum corrosion resistance |
| 55 | 304 stainless | 30–500 PSIG | Light corrosion, steam |
| 560 | 316L stainless | 30–1,000 PSIG | Industrial/chemical service |
Common Applications
- Clean steam generation and distribution systems
- Condensate return and thermal expansion relief
- Pharmaceutical manufacturing equipment
- Semiconductor process equipment relief
- Caustic and chemical processing systems
- Saltwater and offshore service
- Food and beverage processing with washdown
Need Help Choosing the Right Valve?
Our valve engineers can help you select the perfect valve for your application.