ALL-WEATHER BREATHING VALVE DNIOO
Product Model:GFQ-2
Nominal Diameter:50~250mm
Nominal Pressure:1.0MPa
suitable temperature:-40°C-80°C
suitable Medium: oil
PRODUCT TITLE:
ALL-WEATHER INDUSTRIAL BREATHING VALVE (DN100) FOR OIL STORAGE & PROCESS SAFETY
Model: GFQ-2
Product Overview & Applications
Pressure Regulation & Safety for Oil Storage Systems
- Purpose: Designed to maintain pressure equilibrium in oil storage tanks, pipelines, and chemical vessels by automatically venting excess pressure or admitting air during vacuum conditions. Ensures safe operation in extreme weather and temperature fluctuations.
- Key Applications:
- Oil & Gas Storage: Crude oil, fuel oil, and lubricant tanks.
- Petrochemical Industry: Reactors, distillation towers, and process vessels.
- Transportation: Tank trucks, railcars, and marine fuel tanks.
- Environmental Protection: Prevents fugitive emissions and spillage.
Technical Specifications
Parameter |
Details |
Model |
GFQ-2 (DN100 Series) |
Nominal Diameter |
50mm-250mm (custom sizes available) |
Nominal Pressure |
1.0MPa (Class 150 rated) |
Working Temperature |
-40°C-80°C (extreme climate resistance) |
Body Material |
Ductile Iron/304 Stainless Steel (anti-corrosion) |
Seal Material |
Nitrile Rubber (NBR) |
Spring Mechanism |
Stainless Steel (high fatigue resistance) |
Connection |
ANSI/DIN Flanges or Threaded Ends |
Media Compatibility |
Oil, Diesel, Kerosene (hydrocarbon fluids) |
Quality & Compliance
- Design Standards:
- GB/T 12236: Complies with Chinese pressure vessel accessory regulations.
- API 2000: Meets American Petroleum Institute venting standards.
- Testing & Certification:
- Proof Pressure Test: 1.5× nominal pressure (zero leakage).
- Cycle Life Test: 50,000+ cycles (durability validated).
- Material Certifications: SGS-approved for chemical compatibility.
- Safety Features:
- Flame Arresters: Integrated to prevent external ignition sources.
- Anti-Static Design: Conductive materials for spark prevention.
Product Advantages
- All-Weather Performance: Functions in Arctic (-40°C) to desert (80°C) conditions.
- Low Maintenance: Self-cleaning mechanism reduces clogging risks.
- Leak-Proof Design: Dual-stage sealing for zero fugitive emissions.
- Modular Components: Easy replacement of seals, springs, and diaphragms.
- Customizable Options:
- Explosion-Proof Versions: ATEX/IECEx certified for Zone 1/21 areas.
- High-Temperature Seals: Silicone or ceramic for 200°C+ applications.
Packaging & Support
- Export Packaging: Sealed in anti-static bags, foam-lined wooden crates.
- Technical Documents: Installation guides, material test reports (EN 10204), and CAD drawings.
- Warranty: 24-month replacement warranty for manufacturing defects.
- OEM/ODM Services: Custom branding, material upgrades (e.g., Hastelloy for sour crude).
Why Choose GFQ-2?
A rugged, all-weather breathing valve engineered for oil storage systems. Its corrosion-resistant construction and precision-engineered seals ensure long-term reliability in harsh environments, minimizing downtime and environmental risks.
Keywords: Oil Tank Breathing Valve, Pressure Relief Valve, DN100 Vent, All-Weather Safety Valve, ATEX Certified.






