Double Balanced Seal
DOUBLE BALANCED SEAL D020
Sometimes called a two way balanced seal, this is a single mechanical seal that is hydraulically balanced in both directions.
It is a very desirable feature, but seldom provided by seal manufacturers.
Double balance will prevent the inner seal from blowing open in a dual seal application, if the stuffing box pressure falls, or the barrier fluid pressure increases.
Please see two way balance.
- On February 15, 2018