Plan 53C
Category:Seal Support Systems
Detailed introduction
✅ Reason for adoption
Isolate the process fluid. Zero discharge of process fluid.
Pressure is higher than the 53A scheme.
Dynamic tracking of system pressure.
✅ Application scenarios
Used with pressurized double seals
Liquids with high saturation vapor pressure, light hydrocarbons.
Dangerous or toxic liquids.
Thermal fluid
✅ Preventive maintenance
The pipeline circuit must be thoroughly vented before starting up.
The signal lines must be able to withstand contamination from the process medium without becoming blocked.
The isolation fluid must be compatible with the process medium.
The level gauge indicates leakage from both the inner and outer seals.
✅ Typical adaptation scenarios
The core application is in critical industrial scenarios with stringent sealing reliability requirements, such as the transportation of high-risk, toxic, flammable, and explosive media, as well as in high-pressure petrochemical plants, refineries, polymerization reactors, and other similar facilities.
Use parameters
Scheme Overview: In this scheme, the external piping system provides isolation fluid for the outer seal of the double mechanical seal. Meanwhile, a reference line connects the seal chamber to the piston accumulator, supplying the necessary pressure to the circulation system. The internal fluid circulation loop maintains the flow state, while heat generated in the circulation system is removed via an air- or water-cooled heat exchanger.
Keywords：Plan 53C
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Plan 23
Core positioning: A single-face seal self-flushing solution specifically designed for hot-water pumps. The medium is guided out of the self-sealing cavity, cooled, and then returned to the sealing face, achieving integrated self-circulation for flushing and cooling without the need for additional medium replenishment.
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Plan 53A
Reason for adoption: Isolate the process fluid. Zero discharge of the process fluid.
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Plan 53B
Reason for adoption: Isolation of process liquids; zero discharge of process fluids; pressure exceeding the 53A scheme.
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Plan 53C
Reason for adoption: Isolate the process fluid. Achieve zero discharge of the process fluid. Pressure exceeds the 53A design specification. Dynamically monitor system pressure.
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