Fit Rite is now offering check valves for most of the 3pt
hydraulic cylinders that we offer. While there are positives and
negatives to having the check valves, only you can decide if
they are the solution for your cylinder requirements.While there are positives and negatives
to having these, I feel that the grading options available
without them exceeds any need for the check valve.
Why do some people need check valves and others do not?
People feel that they need check valves because of drifting
(cylinder extending on it's own). What many do not realize is
that the cylinder is usually extending on it's own because their
control valve is faulty.
The control valve itself is leaking and therefore allowing the
cylinder to move. Very seldom is the cylinder bad and even if it
was, the check valve would do nothing to prevent a faulty
cylinder from moving on it's own. So with a faulty valve, the
cylinder can drift.
An easy fix is to have a DPOCV on the cylinder. With a check
valve in place on the hydraulic cylinder, the cylinder is then
isolated from the control valve and therefore the cylinder stays
in place. There then has to be a positive amount of pressure
applied to the check valve through the control valve to allow
the cylinder to move and be adjusted.
All of this is fine and works well, but by having a check valve
you now have given up the option of having the float function
and making use of all of those benefits.
Fit Rite Hydraulics