When it comes to hydraulic safety, hydraulic valves
play an important role when it comes to a safe control flow and pressure of
hydraulic systems. A hydraulic system is just a force transfer and in many cases,
not an exceptional mechanical system as one can achieve drives with belts,
gears, or even an electric motor. However, a safe hydraulic system involves a
safe machine first, regardless of the motivation or form.
The two significant considerations in having a safe
hydraulic system pressure and flow and when one has a leak of fluid it causes
failure of the system and load it controls.
Ensure accurate fluid control
The safe control of a hydraulic load is making sure that the
fluids accurately measured. Here the potential pressure or load-induced
pressure to impart energy into oil is high and the oil wants to give up the energy
to its ambient surrounding. By preventing doing, this pressure would escape
past either the directional hydraulic valves or flow control or attempt
to exist in the atmosphere through the seals or plumbing failure points.
When you control fluid well with a metering device through a
proportional valve it prevents the loads and actuators from running away. When installing
a cylinder rod downwards, and the loads naturally in tension installing a
meter-out configuration to prevent the load from running away with the
hydraulic cylinder. This is a safe method in most prevention cases but can
become a pressure intensification risk.
For preventing these drawbacks of metering out, you need a
counterbalance hydraulic valve instead. It is measured as a pressure
valve but primarily directs the actuator and speed and ensures the cylinder does
not move rapidly while the pumps pass regardless of the load-induced pressure
or escalation.
If one does not see a pilot signal from the conflicting work
port, this valve remains shut and avoids the weight from plummeting. They’re
normally mounted directly to the cylinders work port and avert plummeting loads
when there are a tube or hose failures.
Prevent catastrophic failures
When one uses a hydraulic valve - like a relief valve,
it can prevent a catastrophic failure to hoses that normally result in hose
bursts. It does not only cause a catastrophe that can harm a person. When there
is a broken conduit, the fluids free to exit and no longer uphold a load. Here
the counterbalance valve help prevents this load from dropping, in the case of
a conduit failure.
When using a pilot-operated valve, it provides the same
function, however, designed for holding static loads but not as smooth at
controlling load-induced movements as the counterbalance valve. Pressures
important to provide the force density that makes hydraulic systems work well.
However, pressure needs controlling to prevent component failure and render
your machine to be unsafe. There are different control valves that one can use
- for example, the relief valve to limit pressure and in some circumstances can
work as a reducing-relieving valve as it controls downstream pressure spikes
where fluids heated and increases pressure.
Some hydraulic systems use a combination of valves to make
sure the circuit pressures working safely. If you are not, sure what hydraulic
valves best suited for your hydraulic system contact A-Tech Hydraulics
today – our qualified customer service is standing by to take your call!
