ROUND-THE-CLOCKEXPLOSION-PROOFRESISTANCE FIRE BREATING VALVE
Product Modek:ZFQ
Nominal Diameter:10~400mm
NominalPressure:0.6~5.0MPa
suitable temperature:-40°C~80°C
Suitable Medium:oil
PRODUCT TITLE:
24/7 EXPLOSION-PROOF & FIRE-RESISTANT BREATHING VALVE (ZFQ SERIES) FOR HAZARDOUS ENVIRONMENTS
Model: ZFQ
Product Overview & Applications
Critical Safety for Flammable/Combustible Liquids
- Purpose: Engineered to provide constant pressure regulation in oil storage tanks, chemical reactors, and fuel systems while resisting ignition from sparks, flames, or high temperatures. Ideal for ATEX Zone 1/21 and NFPA Class I/II hazardous areas.
- Key Applications:
- Oil & Gas: Crude oil, LNG, and condensate storage.
- Petrochemical: Solvent tanks, polymerization reactors.
- Aviation Fuel: Jet fuel storage and dispensing systems.
- Fire-Prone Zones: Areas with potential for electrical sparks or welding ignition.
Technical Specifications
| Parameter |
Details |
| Model |
ZFQ Series (explosion-proof design) |
| Nominal Diameter |
10mm-400mm (custom sizes available) |
| Nominal Pressure |
0.6-5.0MPa (high-pressure compatibility) |
| Working Temperature |
-40°C-80°C (extreme climate resilience) |
| Body Material |
Cast Steel/316L Stainless Steel (anti-corrosion) |
| Seal Type |
Metal-to-Metal or Graphite-PTFE |
| Explosion-Proof |
Ex d IIC T3 Gb (ATEX/IECEx certified) |
| Fire Resistance |
2-hour integrity (ASTM E119/EN 1363-1) |
| Connection |
ANSI/DIN Flanges or Butt-Weld Ends |
| Media Compatibility |
Oil, Hydrocarbons, Alcohols |
Quality & Compliance
- Certifications:
- ATEX: Directive 2014/34/EU (Zone 1/21).
- IECEx: International certification for explosive atmospheres.
- PED: CE marking (Pressure Equipment Directive).
- Testing:
- Explosion-Proof Test: Chamber ignition resistance (no propagation).
- Fire Endurance: 2-hour burn test (no leakage or structural failure).
- Cycle Life: 100,000+ cycles (validated under extreme pressure).
- Safety Features:
- Spark-Resistant Design: Non-ferrous metal internals.
- Thermal Relief: Automatic venting at over-temperature thresholds.
Product Advantages
- Zero Ignition Risk: Eliminates sparks via metal-seated seals and non-ferrous components.
- High-Pressure Rating: Handles up to 5.0MPa for industrial reactors.
- Fire-Resilient: Maintains seal integrity during hydrocarbon fires.
- Modular Design: Easy maintenance without system shutdown.
- Custom Options:
- Cryogenic Versions: For LNG (-196°C) applications.
- High-Viscosity Media: Specialized seals for heavy oils.
- OEM Integration: Custom flanges/thread types.
Packaging & Support
- Export Packaging: Vacuum-sealed in anti-static bags, heavy-duty steel crates.
- Documents: ATEX certificate, material test reports (3.1B), installation manuals.
- Warranty: 36-month warranty against manufacturing defects.
- After-Sales: 24/7 technical support, spare parts inventory.
Why Choose ZFQ?
A rugged, ATEX-certified breathing valve designed for the harshest conditions. Its fire-resistant body and explosion-proof construction ensure compliance with global safety standards, making it ideal for oil, gas, and chemical facilities where ignition risks are critical.
Keywords: ATEX Breathing Valve, Explosion-Proof Vent, Fire-Resistant Safety Valve, High-Pressure Breather, Hazardous Area Compliance, Oil Tank Safety Device.
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