STAINLESS STEEL OXYGEN BALL VALVE
Product Mode1:QY347
Nominal Diameter:15-400mm
Nominal Pressure:2.5~4.0MPa
Suitable temperature:≤150°C
suitable Medium:OxygenGas, methane, gas
Product Title:
Stainless Steel Oxygen Ball Valve (QY347 Series) - High-Integrity Shutoff for Oxygen & Gas Systems
Model: QY347
Product Overview & Applications
Precision Control for Hazardous Gas Environments
- Purpose:
- Rapid Shutoff: Full-bore design ensures minimal pressure drop in oxygen pipelines.
- Safety Compliance: Engineered for oxygen service (CGA G-4.1) and ATEX Zone 1 certification.
- Key Applications:
- Oxygen Systems: Hospitals, welding, and industrial gas plants.
- Fuel Gas Lines: Methane, LNG, and CNG pipelines.
- Chemical Processing: Corrosive gas handling in petrochemical plants.
- Energy Applications: Hydrogen fuel cells, gas turbine controls.
Technical Specifications
Parameter |
Details |
Model |
QY347 Series (Investment-Cast 316L SS Body) |
Nominal Diameter |
15mm-400mm (Class 150/300/600 available) |
Nominal Pressure |
2.5MPa-4.0MPa (PN25-PN40, ASME B16.34) |
Working Temperature |
-40°C-150°C (Cryogenic to High-Temp Service) |
Body Material |
316L SS / CF8M (Oxygen-Clean, Low-Carbon) |
Ball/Stem Material |
316L SS (Hardened for durability) |
Seat Material |
PTFE / PEEK (Chemically Inert, Low Friction) |
Actuation |
Manual Lever / Pneumatic / Electric |
Connections |
ANSI/DIN Flanges, Socket Weld, Butt Weld |
Suitable Medium |
Oxygen, Methane, Hydrogen, Natural Gas |
Certifications |
CE/PED, ISO 15848-1, ATEX Zone 1 |
Quality & Compliance
- Oxygen Service Standards:
- CGA G-4.1: Certified for oxygen compatibility (no oil/grease).
- ISO 15848-1: FCI Class VI fugitive emission compliance.
- Material Testing:
- PMI Verification: 100% positive material identification.
- Burst Pressure Test: 4x nominal pressure rating.
- Performance:
- Cycle Testing: 50,000 cycles without seat wear.
- Fire-Safe Design: API 607/ISO 10497 compliant (antistatic stem).
Product Advantages
- Oxygen-Ready Construction:
- 316L SS Body: Superior corrosion resistance in chlorine-free environments.
- Cleanroom Assembly: Free of hydrocarbons/particulates (<100 ppm).
- Advanced Sealing:
- Dual-Block Design: Redundant sealing rings for bidirectional zero leakage.
- Live-Loaded Stem: Maintains seal integrity under thermal expansion.
- Operational Efficiency:
- Quarter-Turn Actuation: 90° operation with low torque.
- Locking Device: Prevents accidental valve opening.
- Custom Solutions:
- Cryogenic Options: LN2-tested for -196°C service.
- Extended Stem: For underground/insulated installations.
Packaging & Support
- Export Packaging: Vacuum-sealed in nitrogen-purged bags, wooden crates.
- Technical Docs: Material certs, hydrostatic test charts, installation manuals.
- Warranty: 5-year stem/seat warranty (1-year full valve).
- After-Sales: Global service centers, 24/7 emergency support.
Why Choose QY347?
A high-performance oxygen ball valve designed for safety-critical applications. Ideal for medical oxygen distribution, LNG terminals, and chemical processing where zero leakage and corrosion resistance are non-negotiable.
Keywords: Stainless Steel Oxygen Valve, High-Pressure Ball Valve, Cleanroom-Rated Oxygen Equipment, CGA G-4.1 Compliant, ATEX Certified Gas Valve.






