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We cannot use counterbalance valve because the main DCV is closed centre and it has to be such because of specific requirements of the application. Is there another option?

I need a valve to protect the load from uncontrolled descent in case of hose break. It doesn't need to be exactly hose burst valve. My limit for the pressure drop across the valve is 10 bar. My manager asks me to search for some kind of cartridge valve with higher flow capacity and pilot controlled.

Hi guys, I have a heavy duty double acting hydraulic cylinder operating at 230 l/min max flow rate and need to select a suitable hose burst valve for its ports. I cannot find a valve with such high flow capacity and suppose I should look for another solution. Has anybody encountered such design...

Thank you everyone for your prompt replies. They are really helpful to me. HPost, I attach a sketch to illustrate the principle of operation of the jacking system. It is designed to pull the hull up with the cylinders, because of specific requirements of the application, mostly due to the...

EngineerTex, I refer to your question about the liftboat descent. Actually, during descent there will be pressure on both sides of the cylinder because the pump is delivering hydraulic fluid to the bore side, whereas the load of the hull induces pressure on the rod side and makes it extend...

Thank you very much for your replies. Basically this is the procedure for calculating the power loss I followed so far for the rest of the hydraulic system components. What is my doubt about the counterbalance valve is following. From the CB valve characteristic curve as per manufacturer's...

Hi everyone, I am new to this forum and would appreciate your assistance on following design problem. I am designing a heavy duty hydraulic jacking system for liftboat. When the cylinders retract, the hull goes up. When the cylinders extend, the hull goes down. It is a high pressure system...