Hydraulic valves contain and transfer the flow and pressure of hydraulic fluid in hydraulic power systems. They range from simple shutoff valves to precision control valves.   In their unpowered state, hydraulic valves can be normally open (open center) or normally closed (closed center). Hydraulic valves with a tandem center connect the pressure and tank ports, but block the service ports to allow system unloading and isolation of the service lines. Devices with a float center allow the...
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Q & A on Hydraulic Valves

We asked our users for their input on Hydraulic Valves. Here are the results of 191 users familiar with Hydraulic Valves.

Who Took Our Poll? | Design Trends | Applications and Use | Features | Buying Advice

Who Took Our Poll?Top

Design TrendsTop

Q:
What new technologies are influencing hydraulic valve design?
25 answers
Answers:
Proportional valves
~Don S, General Management, Newbury, Essex
Joystick control.
~Technical Support/Services, Hudson, NH
Compact reliable valves in PLC or CANBUS systems.
~Technical Support, Brisbane, Australia
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Q:
From your perspective, which companies are creating the most innovative hydraulic valves?
32 answers
Answers:
ATOS, Eaton Vickers and Parker
~Rob W, Technical Support, Pittsburgh, PA
Parker, Sauer Danfoss, Mooge, Vickers, Rexroth.
~Gennaro F, Drector of Torque Force Fluid Solutions Pty Ltd, SYDNEY, AUSTRALIA
Brand & Chief are offering joystick valves at 20-40% less than the better known valves.
~Mark Carter, Project Manager, Johnson City, TN
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Applications and UseTop

Q:
What are some of the applications you have used hydraulic valves for?
53 answers
Answers:
Offshore: for wave compensation energy: Turbines are driven by our products, also pitch control for wind mills industry: Paper, Steel, entertainment, formula1, test benches, automotive industries etc....
~Hermann S, General Management, Bad Kreuznach, Germany
Counter balancing, actuating cylinders, motors, semi rotary actuators, in the paper recycling industry, movie special effects, amusement rides, plastic industry, transport industry and etc.
~Gennaro F, Drector of Torque Force Fluid Solutions Pty Ltd, SYDNEY, AUSTRALIA
At first in automatic irrigation systems. Since 1962 used as non-electric auto fill valves for fountain and water display pools in combination with our own PEM Hydraulic Water Make up Sensors.
~Manufacturing, Richmond Hill, Canada
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Q:
Please share with us any “non-standard” applications that hydraulic valves have been used for.
14 answers
Answers:
Lubrication ,hydraulic overload
~Jitender K, Technical Support, Bahadurgarh, India
Proportional valves for a linear cable engine
~Engineering, Other, Goleta, CA
Flow control valves as shut off valves use a check valve as a constant flow valve when drilling the seat too a certain size Obsolete, small hydraulic valves make good paper weights!
~Richard S, Technical Support, Montreal QC, Canada
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Q:
Do you know of any disastrous mistakes that occurred due to the incorrect usage of hydraulic valves?
16 answers
Answers:
The choice of Aluminum valve body when the spike pressure exceeded the application with the result being a split body.
~Technical Support, Brisbane, Australia
Yes, load retaining valves not designed for shock.
~Technical Support, Reno, NV
Improper adjustments of relief valves could lead to a pump explosion. improper selection of load limits, such as using a 200psi. valve in a 3000psi. hydraulic circuit.
~Richard S, Technical Support, Montreal QC, Canada
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FeaturesTop

Q:
What would your design or feature "wish list" be for this product?
21 answers
Answers:
Digital electronic design information. Valve testing information. More information about the structure of the integrated electronics.
~Engineering, Other, Dunaújváros, Hungary
Temperature compensating control valves. Valves that can adjust to the varying temperatures of the hydraulic fluids.
~Richard S, Technical Support, Montreal QC, Canada
A smart valve with pressure and flow capability built into one valve.
~Rob W, Technical Support, Pittsburgh, PA
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Q:
Is there any advice you want to share with users to help them avoid common errors in selection or usage of hydraulic valves?
14 answers
Answers:
Better understanding of the valve casting process will help design engineers
~Chris B, General Management, Wrightsville, PA
Reduce flow through valves to app. 5--60% of capacity to avoid water hammer and noise in pipe system.
~Peter Micha, President , Owner, Richmond Hill, Ontario, Canada
Consider all Hydraulic System Factors: Pump Flow, System Operating Pressure, Fluid in the System and the Viscosity of the Fluid.
~Gennaro F, Drector of Torque Force Fluid Solutions Pty Ltd, SYDNEY, AUSTRALIA
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Buying AdviceTop

Q:
Do you have any advice for people relative to buying or using hydraulic valves?
16 answers
Answers:
Pay attention to pressure ratings.
~Design Engineer, Fremont, CA
Flow rate and either open center or closed center system.
~Mark Carter, Project Manager, Johnson City, TN
Buy bigger size rather than next size smaller
~Tom M, Tool Making, Stephenville, TX
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