A pressure compensating product maintains a constant flow regardless of variations in the line pressure therby optimizing system performance and comfort of use at all pressures.

3 High 
pressure

As the pressure increases the o-ring is
compressed further into the seating area
and reduces the water passage further
(Position 3).
As the pressure decreases the
o-ring relaxes and reopens the
water passage (return to position 2 and 1).