API PLAN 53B(MCS 53B Barrier liquid,bladder accumulator)
Application
- For dirty, abrasive or polymerizing products where media is unsuitable as a lubricant for inboard seal faces.
- For services where media is unsuitable for flushing the inner seal faces.
Media Characteristics
- Suspended solids
- Polymerizing and contaminated media
- Poor lubrication properties
- Hazardous / environmentally harmful
- Leakage may form solids
- Close to vaporization point
- Can tolerate dilution with barrier media
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MCS 53B designed according to API Plan 53B .External barrier liquid system pressurized by a bladder accumulatorsupplying clean fluid to the inboard and outboard seal faces.
Technical Features:
- This system is used in applications where process media leakage to the atmosphere is not allowed. It is suitable for toxic, hazardous, and non-volatile process media.
- The use of a bladder accumulator prevents contact between the pressurization gas and the barrier liquid This prevents gas absorption into the barrier liquid and allows for high-pressure operation.
- The barrier fluid pressure is maintained 0.14-0.41MPa higher than the seal chamber pressure. Minor leakage of barrier fluid into the process system may occur.
- The barrier fluid circulates from the seal chamber through the pumping ring, returns to the reservoir for cooling, and recirculates back to the seal chamber.
- The system is equipped with venting or flare connection.
- The system can be equipped with pressure, level, and temperature sensors based on user operating conditions and requirements.