API Plan 65B
API Plan 65B – Leakage Detection and Drain System for Single Seals
API Plan 65B is a leakage detection and drain system designed for single mechanical seals.
It continuously monitors and controls seal leakage, ensuring that any excess leakage is safely drained while maintaining process safety and efficiency.
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Features
How It Works:
- Leakage from the mechanical seal is collected in a drain line.
- The fluid is passed through a flow detection system (such as a flow meter or level sensor).
- If the leakage exceeds a preset limit, an alarm or warning signal is triggered.
- The leaked fluid is then routed to a drain or collection system for proper disposal or recycling.
Benefits
- Leakage monitoring – Helps detect seal failure early, preventing excessive fluid loss.
- Safety improvement – Reduces environmental risks by collecting and disposing of leaked fluid properly.
- Prevents contamination – Ensures that leakage does not mix with surrounding equipment or process areas.
- Reduces maintenance downtime – Provides early warning signs of seal wear, allowing proactive maintenance.
Drawbacks
- Not a leak-prevention system – Only detects and drains leakage; it does not stop leaks from occurring.
- Limited to non-volatile fluids – Ineffective for handling highly volatile or gaseous process fluids.
- Additional instrumentation required – Flow meters, sensors, and alarms increase system complexity and cost.
- Regular maintenance needed – Sensors and drain lines must be checked periodically to ensure proper function.
Applications
- Oil & Gas Industry – Used in low-pressure crude oil and hydrocarbon pumps where leakage monitoring is essential.
- Chemical Processing – Applied in pumps handling corrosive chemicals to prevent leaks from causing hazards.
- Power Plants – Used in water circulation and lubrication oil pumps to detect excessive seal leakage.
- Refineries – Helps track seal leakage in pumps handling light hydrocarbons.
- Pharmaceutical & Food Industries – Ensures hygiene by monitoring leakage in critical process pumps.
- Water & Wastewater Treatment – Monitors and drains leakage in clean water and wastewater pumps.
API Plan 65B is an effective leakage monitoring solution, particularly in industries where environmental compliance, safety, and maintenance cost reduction are priorities.
Warning Notes
Related Technical Papers
Applicable Products
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