Recent Blogs
Hydraulic Sand Ejector: Flow Paths and Unit Calculator | FIRGELLI
Explore a filter-sand ejector illustration and convert pressure and diameter into freshwater head and circular area. Slurry flow and sand capacity are not calculated.
Yoke Connection Mechanism: How Hydraulic Cylinder Clevis Pin Joints Work, Parts, and Uses Explained
Explore a pinned yoke in ideal double shear. Compare cylinder thrust and average pin shear stress; the result does not rate the complete joint.
Saw-mill Water Wheel Mechanism Explained: How It Works, Parts, Formula and Uses
Explore a flume-fed saw-mill paddle wheel and compare gate flow, hydraulic power and torque under selected assumptions.
Hydraulic Reversing Movement: Cylinder Speed and Force Calculator
Calculate ideal hydraulic cylinder extension and retraction speed and force. Compare bore and rod sizes and see how a directional valve reverses motion.
Persian Wheel: Gear Ratio and Bucket Timing
Persian Wheel water-lifting mechanism explained — how the sakia chain-and-pot drive works, real flow rates, and farm and heritage applications worldwide.
Ancient Water Lift Mechanism Explained: How It Works, Parts, Diagram, and Discharge Formula
Explore ancient water-lift principles and an animated screw lift. Calculate flow from entered pocket delivery, speed and volumetric efficiency.
Lift Pump (form 1) Mechanism Explained: How It Works, Diagram, Parts, Uses, and Flow Calculator
Calculate bucket-pump swept volume, efficiency-adjusted flow and static suction pressure drop. Watch the complementary foot-valve and piston-valve cycle.
Flexible Pipe Ball Joint: Angle-Sum Comparison | FIRGELLI
Compare entered joint angles and equal-share demand in a simplified coplanar model. Learn why piping geometry and product ratings need separate checks.
Fairburn Bailing Scoop: Volume and Flow Calculator | FIRGELLI
Follow a tilting bailing scoop through filling, lifting and discharge. Calculate volume per cycle and average flow from scoop volume, fill fraction and cycle rate.
Drainage Wheel Mechanism: How Scoop Wheels Lift Water with Diagram, Animation, Parts and Calculator
See how an externally driven drainage wheel lifts water through a curved passage. Estimate water power, shaft power, running torque and paddle-tip speed.
Worthington Duplex Pump Mechanism: How the Cross-Coupled Steam Valve Linkage Works, Parts and Uses
See the common piston rods and cross-coupled control arrangement of a Worthington duplex pump. Compare ideal pressure from steam pressure and piston-area ratio.
Well Pulley and Buckets Mechanism Explained: How a Fixed Sheave Lifts Water from Hand-Dug Wells
Explore a fixed well pulley. Compare ideal pull, lifting work and average power using water volume, lift height and duration.
Water Velocity Indicator: Propeller Animation and Flow Calculator
Apply entered propeller-meter calibration coefficients, then calculate flow and accumulated volume under explicit mean-velocity and steady-flow assumptions.
Water Raising Machine: Archimedes Screw Animation and Gap Comparison
Explore an Archimedes screw and compare running clearance with a reference gap. Calculate geometric ratios; the illustrative index does not predict leakage or flow.
Water Purifying Filter: Animation and Gauge-Difference Calculator
Compare inlet and outlet gauge readings and an entered differential-pressure reference. Pressure difference does not measure water purity or establish a service interval.
Water Meter: Pulse Animation and Volume Calculator
Convert pulse count and litres per pulse into indicated volume. Calculate ideal pulse frequency and elapsed time from an independently entered constant flow.
Warren Central Discharge Turbine: Animation and Hydraulic-Power Calculator
Calculate water power from net head and flow, then apply an entered efficiency assumption and gate schedule to estimate shaft power and torque.
Ward Flexible Pipe Joint: Animation and Nominal Thrust Calculator
Explore a ball-and-socket pipe joint and calculate nominal pressure-area thrust, an angular component and entered geometry references. Joint ratings are not predicted.
Volute Turbine: Scroll Animation and Ideal Area-Flow Calculator
Explore a turbine scroll and an ideal linear relationship between wrap angle, carried flow and area. Calculate reference velocity with explicit model limits.
Variable Compensating Weights: Ideal Hydraulic Pressure Calculator
Explore sequential weight pickup in a hydraulic lift. Calculate ideal static pressure from entered supported mass and ram area, plus pressure at a lower fluid...
Jet Condenser: Ideal Dynamic Pressure and Liquid-head Comparison
Explore a direct-contact condenser arrangement. Compare ideal dynamic pressure and atmospheric liquid head; vacuum, condensation and pump capacity are not predicted.
Upflow Filter: Superficial Velocity and Bed-expansion Geometry
Calculate flow per bed area and compare an entered expansion percentage with available freeboard. Actual expansion and filtration performance are not predicted.
Universal Pipe Joint: Ideal Angle-sharing Comparison
Explore a spherical pipe joint and compare assumed equal angle sharing across several joints. Pressure is displayed as entered; ratings and pipe stresses are not...
Turbine and Wicket Gates: Hydraulic Power and Torque Comparison
Explore wicket gates and compare hydraulic power and torque at an entered operating point. Flow fraction and efficiency are assumptions, not predicted turbine curves.
Tri-axial Rotary Pump: Three-screw Arrangement and Flow Comparison
Explore a three-screw pump and calculate fluid power from entered pressure rise and delivered flow. A selected loss fraction gives an assumed flow balance.