TYPE ALL-WEATHER RESISTANCEFIRE BREATHING VALVE
Product Model:QZF
Nominal Diameter:50-300mm
NominalPressure:0.6~6.4MPa
Suitable temperature:-40°C~80°C
Suitable Medium:oil
PRODUCT TITLE:
ALL-WEATHER FIRE-RESISTANT BREATHING VALVE (QZF Series) - Safe Pressure Regulation for Oil Storage
Model: QZF
Product Overview & Applications
Dual-Protection for Hazardous Environments
- Purpose:
- Pressure Regulation: Maintains tank pressure balance during loading/unloading cycles.
- Flame Arrestance: Prevents external ignitions from entering the tank, complying with NFPA 69 and ATEX flameproof standards.
- Key Applications:
- Oil & Gas Storage: Crude oil, diesel, gasoline, and chemical tanks.
- Petrochemical Plants: Process vessels handling flammable liquids.
- Marine/Offshore: Fuel tanks, cargo holds, and FPSOs.
- Terminal Facilities: Bulk liquid storage and transfer stations.
Technical Specifications
| Parameter |
Details |
| Model |
QZF Series (All-Weather Fire-Resistant Design) |
| Nominal Diameter |
50mm-300mm (customizable for tank size) |
| Nominal Pressure |
0.6MPa-6.4MPa (ASME/PED-compliant) |
| Working Temperature |
-40°C-80°C (suitable for extreme climates) |
| Body Material |
Carbon Steel/316L Stainless Steel |
| Seal Material |
EPDM (chemical-resistant options) |
| Flame Arrestor |
Sintered Metal Element (0.1mm pore size) |
| Flow Capacity |
Up to 12,000 m³/h (depends on size) |
| Connections |
ANSI/JIS Flanges (threaded/welded options) |
| Suitable Medium |
Oil, Petroleum Products, Hydrocarbons |
Quality & Compliance
- Certifications:
- API 2000: Venting requirements for atmospheric & low-pressure tanks.
- ATEX: Zone 1/21 compliance for explosive atmospheres.
- CE Marking: PED 2014/68/EU for pressure equipment.
- Material Tests:
- EN 10204 3.1B: Certified material traceability.
- NACE MR0175: Sulfide stress cracking resistance.
- Performance Standards:
- ISO 16852: Flame arrestor efficiency tested.
- UL 525: Explosion-pressure resistance.
Product Advantages
- All-Weather Durability:
- IP68 Rated: Waterproof/dustproof for outdoor installations.
- UV-Resistant Coating: Prevents corrosion in marine/desert environments.
- Intelligent Design:
- Self-Closing Mechanism: Ensures zero leakage during non-operation.
- Low-Maintenance: Modular components for easy servicing.
- Safety Features:
- Anti-Static Grounding Lug: Prevents static buildup.
- Emergency Venting: Exceeds API 2000 flow rate requirements.
- Customizable Options:
- Cryogenic Versions: For LNG (-196°C) applications.
- High-Pressure Upgrades: Up to 10MPa (custom-built).
Packaging & Support
- Export Packaging: Seaworthy plywood crates with desiccant bags.
- Technical Docs: Installation manuals, material certs, ATEX declarations.
- Warranty: 24-month coverage for manufacturing defects.
- After-Sales: Lifetime technical support, global spare parts network.
Why Choose QZF?
A rugged, certified solution for flammable liquid storage, combining flame-resistant protection with precise pressure control. Ideal for high-risk zones requiring compliance with ATEX, API, and NFPA standards.
Keywords: Fire-Resistant Breathing Valve, API 2000 Vent, ATEX Flame Arrestor, Tank Pressure Regulation, Oil Storage Safety, Explosion-Proof Valve, Hazardous Area Equipment.
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