PVRV: Pressure Vacuum Relief Valve
PVRV,s, as per **API 2000**, are designed to protect **low-pressure storage tanks** from excessive pressure or vacuum conditions. These valves ensure proper venting to maintain safe operating conditions.
- **Dual Functionality**: Provides both **pressure relief** and **vacuum relief** to prevent tank damage.
- **Compliance with API 2000**: Meets industry standards for venting storage tanks.
- **Types**:
- **Weight-Operated**: Uses a weighted disc to regulate relief.
- **Spring-Operated**: Utilizes a calibrated spring for precise control.
- **Pilot-Operated**: Offers enhanced accuracy and stability.
- **Leak-Tight Design**: Ensures minimal product loss and environmental protection.
- **Sizing Considerations**: Based on tank volume, operating conditions, and required flow rates.
- **Prevents Tank Collapse**: Protects against vacuum conditions that could cause structural failure.
- **Reduces Product Loss**: Minimizes emissions and evaporation losses.
- **Improves Operational Efficiency**: Ensures stable pressure management.
- **Enhances Safety**: Prevents overpressure scenarios that could lead to hazardous situations.
- **Optimized Pressure Management**: Some advanced designs allow for **full lift** at just **10% overpressure**, reducing unnecessary product losses.
