LEE VISCO JETS
The Principle Behind The Unique Lee Visco Jet Performance
The Visco Jet consists basically
of three discs mounted
one upon the other to form
an extremely complex fluid
passage. Fluid enters at
the center of one disc and
passes through a slot which
is tangential to a spin chamber.
This discharges through
a small center hole into
another chamber. This process repeats over and over.
Since the spinning liquid makes many revolutions in
each spin chamber, the resulting fluid resistance uses
the flow passage surfaces many times. 
The tangential
nature of the slots overcomes sensitivity to viscosity.
The centrifugal force of the liquid maintains a back pressure
on the discharge of the
slot which is proportional to
the square of the RPM of the
spinning liquid. This provides a reasonable
degree of viscosity compensation
without the use of any
moving parts.
Some Lee Visco Jets are made from solid stainless steel discs, while others are fabricated from photo-etched stainless steel plates which are bonded together to produce a homogeneous leakproof product. All Visco elements are rigidly and permanently retained in their respective inserts, cartridges, or line mounts. Standard Lee Visco Jets are calibrated to the noted Lohm ratings in both directions.
More on Lee Visco Jets