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Help CenterExplosion-Proof Oil Tank Breather Valve CB/T692-1994 for Hazardous Areas
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As an ISO9001-certified valve manufacturer established in 2016, Shanghai Zhibang Valve delivers specialized Explosion-Proof Oil Tank Breather Valves engineered for critical hazardous environments. Our CB/T692-1994 compliant valves prevent catastrophic tank failures by maintaining optimal pressure balance while blocking external ignition sources. With over US$1 million in annual exports to 15+ global markets, we combine rigorous safety standards with proven industrial reliability.
Core Technical Specifications:
- Advanced flame arrestor technology prevents flashback ignition
- Dual-stage pressure/vacuum relief mechanism
- Corrosion-resistant construction for harsh chemical environments
- Low maintenance design with self-cleaning seats
- Temperature range: -30°C to +80°C operating capacity
| Model | Size (DN) | Set Pressure (Pa) | Vacuum Relief (Pa) |
|---|---|---|---|
| Standard Series | 20-80 | +700 to +980 | -200 to -295 |
| Heavy Duty | 100-150 | +850 to +980 | -250 to -295 |
The valve's stainless steel mesh flame arrester quenches flames within 0.15 seconds, while precision-calibrated springs maintain ±5% pressure accuracy. Field tests demonstrate 100,000+ cycles without performance degradation. Clients benefit from 30% reduced maintenance costs and elimination of tank deformation risks.
Global Performance Validation:
- Shipped 50,000+ units through Shanghai/Guangzhou ports since 2016
- Operational in extreme climates across Siberia, Middle East and Oceania
- Compatible with API 2000 and NFPA 30 compliance frameworks
Frequently Asked Questions
Q: What maintenance interval is recommended?
A: Annual inspection is sufficient under normal conditions; visual checks every 6 months in high-dust environments.
Q: Can this valve handle viscous crude oil vapors?
A: Yes, the anti-clogging design prevents residue buildup even with heavy crude applications.
Q: Are custom pressure settings available?
A: Absolutely – we provide calibration between +500Pa to +1500Pa upon request.
Q: What is the typical delivery lead time?
A: Standard sizes ship in 15 days; custom configurations require 25 days production.
Q: How does the explosion-proof certification work?
A> The valve meets ATEX Zone 1 requirements by containing combustion within its chamber.
Q: Can I get installation supervision?
A> Technical specialists are available for on-site commissioning worldwide.
Q: What warranty do you provide?
A> 24-month warranty covers all manufacturing defects.
Q: Do you offer emergency replacement services?
A> Critical failure replacements ship within 72 hours with expedited customs clearance.
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