Plan 53A barrier Makeup Fluid
Plan 53A barrier Makeup Fluid
(OP)
What is the ideal procedure to add barrier fluid to a plan 53A seal reservoir? If the system is pressurized under a nitrogen blanket, how do you go about adding barrier fluid if the leak is at an extremely low rate and you need to add makeup fluid?
I've heard about re-fill carts, but are they able to pump up against the nitrogen pressure? I would htink you would NEVER want to de-pressurize the system as you can see ao-ring shift on the primary seal and possibly never reseat. Thoughts?
I've heard about re-fill carts, but are they able to pump up against the nitrogen pressure? I would htink you would NEVER want to de-pressurize the system as you can see ao-ring shift on the primary seal and possibly never reseat. Thoughts?





RE: Plan 53A barrier Makeup Fluid
RE: Plan 53A barrier Makeup Fluid
The other option is an air driven piston pump which uses air to drive it and no effort by the operator. Costs are higher but if you save 1 seal failure it's paid for itself
trust this helps
RE: Plan 53A barrier Makeup Fluid
Thanks for the response. You would agree however, that the pressure off the plan 53A should never be relieved when adding "makeup" barrier fluid? This would place your seal in a "reverse pressure" situation and o-ring shift could possible manifest itself hanging-up when the correct pressure orientation is re-established.
RE: Plan 53A barrier Makeup Fluid
If you have a float-type level device, it could try triggering off of a certain set point.