BV Series
Pressure and vacuum breather valves allowing storage tanks to breathe safely while preventing vapour release and air ingress.
The BV Series are pressure and vacuum relief valves (breather valves) designed for installation on fixed roof storage tanks. They allow the tank to breathe during filling, emptying, and thermal breathing while maintaining the vapour space within safe pressure limits. Available with flame arrestor element for additional safety.
Key Features
- Dual Acting — Provides both pressure and vacuum relief for complete tank breathing protection.
- Weight Loaded Pallets — Accurate and reliable operation with adjustable weight loaded pallets.
- Integral Flame Arrestor Option — Optional integral flame arrestor element for additional fire safety.
- Wide Pressure Range — Available in a wide range of set pressures for different tank applications.
- Low Maintenance — Simple design with minimum moving parts for reliable long-term operation.
Applications
- Fixed roof storage tanks
- Chemical storage
- Petroleum product storage
- Solvent storage tanks
Technical Specifications
| Body Sizes | 1″ to 12″ — ANSI B16.5 Class 150 |
| Set Pressure Range (Pressure) | 2 mmWcg to 800 mmWcg |
| Set Pressure Range (Vacuum) | 2 mmWcg to 200 mmWcg |
| Temperature Range | -20°C to 80°C |