
Astra Seals AS Plan 53B Seal Support System. Pressurized barrier fluid system with integrated finned tube heat exchanger for air-cooled applications. Includes pressure vessel, pressure gauges, safety valve, fill/drain valves, and finned cooling tubes. Designed for installations where cooling water is unavailable. Compliant with API 682 Plan 53B configuration.
SS316L vessel / SS316 piping / Pressure gauges / Safety valves / Finned tube heat exchanger
| Model | Materials | GA |
|---|---|---|
| AS Plan 53B | SS316L vessel / SS316 piping / Pressure gauges / Safety valves / Finned tube heat exchanger | — |
Pressure
0 ~ 2.0 MPa
Temperature
-20 ~ 150 ºC
Mediums
Barrier fluid supply with integrated heat exchanger for double mechanical seals in high-temperature applications.
Customization Available
Available in various reservoir sizes and cooling configurations. Contact us with your requirements.
Vessel Capacity
3 ~ 20 L (standard sizes)
Connection Size
1/2" NPT / 3/4" NPT
Design Pressure
0 ~ 2.0 MPa
Nitrogen Charging
Bladder or piston type accumulator
Cooling
Finned tube heat exchanger (air-cooled)
Heat Dissipation
Up to 2 kW (ambient dependent)
Instrumentation
Pressure gauge, level indicator, safety valve
Applicable Standards
API 682 Plan 53B
Notes
Air-cooled design eliminates cooling water requirement. Suitable for remote or outdoor installations. Fin tube area sized to application heat load.

Astra Seals AS Plan 53 Seal Support System. Pressurized barrier fluid system for dual mechanical seals. Includes pressure vessel, pressure gauges, safety valve, fill/drain valves, and cooling coil. Maintains barrier fluid pressure above process pressure to prevent product leakage. Compliant with API 682 Plan 53A/53B/53C configurations.

Astra Seals AS Cyclone Separator for mechanical seal support. Removes solid particles from seal flush fluid using centrifugal separation. Protects seal faces from abrasive damage in slurry pump applications. No moving parts for maintenancefree operation.

Astra Seals AS FlowUnit for mechanical seal support. Compact flow monitoring unit for seal flush and cooling systems. Integrates flow indicator, pressure gauge, and throttle valve in a single unit. Enables quick visual verification of seal support system operation.
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