We in the pump manufacturing business don't like to admit it, but hydraulic pumps--all hydraulic pumps--produce pulsations that cause fatigue, leakage, noise, and control problems.
In spite of tuning, timing, metering, insulating, shock-mounting, flooding inlets, adding mass, adding hose, isolation clamps, enclosures, accumulators, and dash pot valving, the inefficiencies continue because the pump still generates pulsations with every cycle.
Compounding the pulsation-caused problems are the hydraulic system pressure surges caused by valve shiftings and closings.
Now there's a way to greatly reduce or even eliminate these problems. Try using the Pulse Gulper(tm) pulsation supressor in your circuit. It's easy to install, small in size, lightweight, and very effective in reducing pulsations and absorbing surges--more effective than any device we know of.
HPS invented, developed, and manufactures the Pulse Gulper(tm). After designing high-performance hydraulic pumps and complete close-tolerence hydraulic systems for decades, we know what it takes.
"Let me count the ways..." that a Pulse Gulper can help in your applications.
Installation information: how to use a Pulse Gulper(tm)
Pulse Gulper(tm) details
These two typical models can reduce pulsations and surges up to 90%. Click here for more details about these two stock models. Keep in mind that higher pressure and larger volume models are available, and we can always custom design new ones to fit any special needs your appication requires.
Here's how the 3 cu. in., 49cc model typically performs when coupled to the discharge of a 1.5 CIR, 25cc Pump @ 2,500 RPM, 3000 psi, 207 bar:
If you need even more attenuation, we make an 8 cu. in., 131cc model. Here's how it typically performs when coupled to the discharge of a 1.5 CIR, 25cc Pump @ 2,500 RPM, 3000 psi, 207 bar: