ERV Series
ERV Series emergency relief valves deliver high-flow pressure and vacuum protection for storage tanks in multiple bore sizes for rapid overpressure equalisation.
The ERV Series are large capacity emergency pressure and vacuum relief valves designed for storage tanks. They provide rapid emergency venting capacity to prevent tank structural damage during emergency conditions such as fire exposure or rapid filling/emptying. The pallet design opens at a preset pressure differential higher than normal breather valve settings to provide maximum flow capacity during emergencies.
Key Features
- Large Emergency Capacity — Designed to pass maximum emergency flow at minimum overpressure.
- Dual Acting — Emergency pressure and vacuum relief in a single valve.
- Guided Pallet Design — Guided pallet ensures positive reseating after emergency venting.
- Corrosion Resistant — Available in stainless steel and coated materials for corrosive environments.
- Low Maintenance — Simple construction for reliable emergency operation.
Applications
- Fixed roof storage tanks
- Emergency fire exposure protection
- Large capacity chemical storage
- Petroleum product storage
Technical Specifications
| Body Sizes | 4″ to 24″ — ANSI B16.5 Class 150 |
| End Connection | Flanged — ANSI B16.5 |
| Standard | API 2000, ISO 28300 |