Plan 53B

Description:

Pressurized barrier system with pressure maintained by a bladder accumulator

Features:

• Circulation is maintained by a pumping ring when equipment is energized, by thermosiphon effect when idle
• Barrier fluid and pressurized inert gas are kept separate by the bladder
• Heat is removed from the system by a heat exchanger (air or water cooled)
• Stand alone system does not rely on a centralized pressure source
• No media leakage to the atmosphere
• Seal life optimized by maintaining clean fluid film between the seal faces

For use:

• Where no leakage to atmosphere is allowed; hazardous, flammable, toxic fluids
• For dirty, abrasive or polymerizing fluids where media is unsuitable as a lubricant for the inboard seal faces

Caution:

• There will always be some leakage of barrier fluid into product – verify compatibility
• Heat dissipation is totally dependent on cooler efficiency as there is low volume of barrier fluid in system
• Always recharge bladder to 0.9 times the working pressure
• Vent the system properly before start up
• Barrier fluid contamination can cause corrosive degradation of equipment