Servo Valve || Electro Hydraulic Servo Valve (EHSV) 

Thank you brother

First of all thank you brother video ko like and comment krne ke liye. Or multiple cylinder ka jb LPM nikana he to us ke liye kuch formulas hai wo me bta deta hu or ek example solve kr ke bhi de deta hu us calculation me aap apne system ke value ya number dal ke calculate kr skte ho

1. Number and Size of Cylinders : Determine how many cylinders are in the system and their individual bore (diameter) and stroke (length of travel). The bore determines the piston area (A) and stroke determines the volume of fluid required per cylinder per cycle. 2. Cycle Time : Understand the cycle time or speed at which you want each cylinder to extend and retract. This will affect the flow rate required. 3. Flow Requirements : Calculate the total volume of fluid needed per unit of time based on the cylinder movements. Each cylinder will have both extension and retraction phases, and you'll need to account for both. Here’s a step-by-step approach to calculate the LPM flow rate: Step 1: Calculate the Volume Requirement for Each Cylinder Volume per Stroke (V_stroke) : Calculate the volume of fluid required for one stroke of each cylinder. V stroke = A × S Where: ( A ) = Area of the cylinder piston (π * (bore/2)^2) ( S ) = Stroke length Step 2: Determine the Cycle Time Cycle Time (T) : Determine how fast you want each cylinder to move (in seconds per cycle). This will depend on your application and desired speed. Step 3: Calculate Flow Rate for Each Cylinder Flow Rate per Cylinder : Calculate the flow rate required for each cylinder to achieve the desired speed. Q cylinder = Vstroke ÷ T Step 4: Total Flow Rate for Multiple Cylinders Total Flow Rate (Q_total) : Sum up the flow rates required for all cylinders in the system to get the total LPM required. Q total = Qcylinder1 + Qcylinder2+Qcylinder.... Step 5 : Consider Safety Margin and System Efficiency Safety Margin : It's often wise to add a safety margin (typically 10-20%) to account for variations in system performance, pressure drops, or future expansion. Q total = Q total × (1 + safety margin) Step 6: Select a Hydraulic Pump Pump Selection : Once you have the total flow rate required, select a hydraulic pump that can provide at least this flow rate at the required pressure. Example Calculation: Let's say you have: - 3 cylinders with bore diameter ( D ) = 100 mm bore radius ( r ) = 50 mm - Stroke length ( S ) = 500 mm - Cycle time ( T ) = 10 seconds 1. Calculate piston area ( A ): A = π r^2 = π (0.05)^2 = 0.00785 m^2 2. Calculate volume per stroke V stroke : Vstroke = A× S = 0.00785 m^2 × 0.5 m = 0.003925 m^3 3. Calculate flow rate per cylinder Q cylinder : Q cylinder = V stroke ÷ T = 0.003925 m^3 ÷ 10 s = 0.0003925 m^3/s 4. Total flow rate Q total for 3 cylinders: Q total = 3 × 0.0003925 m^3 / s = 0.0011775 m^3/s 5. Convert to liters per minute (LPM): Q total = 0.0011775 m^3/s ×60 s/min 1000 L/m^3 = 70.65 LPM Therefore, the total flow rate required for this hydraulic system with three cylinders, given the parameters above, is approximately 70.65 LPM. Adjust the calculations based on the specific parameters of your hydraulic cylinders and operational requirements to accurately determine the required flow rate for your system.

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@@JPhydrauliccircuit question ye hai ki ........yadi hydraulic system me servo valve use karte hai to koi other pressure control valve, follow control valves, pressure relief valves use karne ki jarurat to nahi n rahega ....ya koi or valve use karna padega