split flow hydraulic pump quotation

ONE Dynex pump can supply multiple actuators, and synchronized movement can be achieved without flow dividers. Dynex pioneered this Split-Flow® technology over 60 years ago!

The checkball pump design uses individual piston check valves, offering a unique advantage among hydraulic pumps. Each pumping chamber can be isolated, and the output from each piston can be used separately.

For lifting and lowering applications on multiple points, Split-Flow Pumps are a far better alternative than using independently operated pumps. Where synchronization of maximum 4% is acceptable, SplitFlow Pump are a safe and economical solution.

Split-Flow Pumps are designed to move uneven loads uniformly during both lifting and lowering operations. Flow to each outlet is controlled via simultaneous operation of valves to provide even flow to each lift point regardless of differences in load. As long as all cylinders have the same load rating (effective area), the cylinders will move evenly based on this even output flow. For fine tuning at individual lift points, valves can be controlled individually. Advance / Hold / Retract functions provide complete control over multipoint lifts.

Combination of VE43D/VP43D and overcenter valve OC Over-Center Valve (OC): The overcenter valve (counterbalance) is designed to control the movement of the cylinder subject to a negative load. This valve is suitable for double effect or oil return cylinders only. The overcenter valve permits a controlled lowering phase of the load avoiding danger for the operator and for the hydraulic system itself. The valve is set to factory values, no reguation needed by the operator. The unidirectional flow control valve (RFUA) is a cheaper alternative to the overcenter valve: in this case, the operator must shut the valve before the lifting phase, to gradually open it during the lowering phase to set the return’s speed. This is obviously a cheaper way to obtain speed control during the lowering phase but the operator is exposed to danger due to a less accurate management of the load. Assembled on a split flow pump, the overcenter valve allows a fine control on the lowering phase too.

​The HSP series electric driven split flow hydraulic pump range offers users the opportunity to operate up to 8 independent hydraulic outlets from within a single pump assembly. With easy to operate controls HSP series pumps are ideally suited for synchronous lift applications particularly where there is uneven load distribution between the multiple jacking points. All models are 380/440 volt three phase electrical supply operation. Optional extra’s include a fully automatic PLC controlled synchronised lifting system, with a variety of user settings, such as target lifting height, maximum tolerance between the jacking points and other key settings, all controlled from a centralised touch screen computer.

HSP series pumps fitted with low voltage solenoid valves are complete with a low voltage control system, which allows the user to individually or simultaneously control each valve and the movement of the lifting cylinder pistons. Once the load is correctly supported, by the selected cylinder pistons, the synchronised lift operation can commence. The operation of the HSP Pump Unit can be entirely controlled from the remote control panel, which features individual valve on / off switches and a set of cylinder piston lift and lower buttons that can be individually selected for inclusion in the lift operation.

When it comes to hydraulic pumps, a hydraulic gear pump in particular is simple, economic, and uses a small amount of oil for lubrication. And though some gear pumps have been known to be quite loud, newer models are much quieter and more reliable than older pumps. The increased reliability and improved sound quality can be attributed to new gear design such as helical gear teeth and split gears as well as higher precision and tooth profiles that allow for smoother meshing and unmeshing. These aspects reduce the occurrence of critical problems such as pressure ripple and similar issues. High pressure hydraulic gear pumps are also an option for harsh environments where there could be extreme temperatures and pressure surges. With a specialized cast iron body, these pumps are known for having long working lives. Even regular hydraulic gear pumps are known for their long life span, gradually wearing down rather having a sudden, detrimental breakdown. So how do you know when it is time to replace your hydraulic gear pump?

Replacing a hydraulic gear pump may become necessary depending on deteriorated efficiency or the remaining bearing life. Predictive maintenance technology or professional maintenance personnel will most likely be needed to determine bearing life; but even with such assistance, this task can be difficult. Deterioration in efficiency is a more obvious issue as the machine slows down and cycle times increase. If this is the case and the slow-down is enough to replace the pump, then quantifying the loss of efficiency may not be necessary; but in some cases this quantification can be helpful for comparative reasons. In order to do this, there needs to be an understanding of mechanical/hydraulic efficiency and volumetric efficiency as well as overall efficiency.

To find a pump’s mechanical/hydraulic efficiency, the theoretical torque required to drive it is divided by the actual torque required. While mechanical/hydraulic efficiency is determined by torque, volumetric efficiency is determined by flow. In this case, the actual flow delivered is divided by the theoretical flow (which is found by multiplying the driven speed by the pump’s displacement per revolution). The actual flow must be measured using a flow meter. Determining both of these efficiency values will help to understand the overall efficiency, which is important when it comes to making the decision of whether or not to purchase a new hydraulic gear pump. Know your equipment, how to get the most out of it, and when it’s time to upgrade to a new model. For more information or to request a quote on a hydraulic gear pump, contact one of the leading manufacturers in the industry today.

Spit-Flow pumps distribute an equal amount of hydraulic oil to maximum of 8 outlets. Smart valve technology allows both controlled lifting and lowering of heavy loads.

For lifting applications Split-Flow are an efficient and safer alternative than using individual pumps. Where synchronization of maximum 4% is acceptable, Split-Flow pumps are a safe and economical solution.