Recent Blogs
Hydraulic Rail Punch: Nominal Clearance Geometry Calculator | FIRGELLI
Convert an entered total-clearance percentage into circular punch and die dimensions. Clearance selection, punching force, tool strength and rail suitability are not calculated.
Hydraulic Rail Bender: Ideal Beam First-Yield Calculator | FIRGELLI
Estimate nominal first-yield moment and central load for a simply supported beam. Rail forming, springback, contact stress and equipment capacity are not calculated.
Hydraulic Pulling Jack: Full-Bore and Annular Force Calculator | FIRGELLI
Compare ideal full-bore and rod-side annular force from bore, rod diameter and applied pressure. Opposing pressure, attachments and safe pulling capacity are not calculated.
Hydraulic Press Ram: Ideal Force and Unit Conversion | FIRGELLI
Calculate ideal gross ram force from hydraulic pressure and bore, with exact conversions to kN, kgf and tonne-force. Frame, tooling and press capacity are not...
Hydraulic Irrigation: Head, Flow Share and Energy Calculator | FIRGELLI
Compare drive head and delivery lift using an assumed hydraulic-ram efficiency. Results give idealized flow shares and static freshwater pressure, not pump capacity or site...
Hydraulic Intensifier: Ideal Pressure and Displacement Ratios | FIRGELLI
Compare ideal linked-piston pressure multiplication and reciprocal displacement ratios. The calculator does not establish component ratings or continuous delivered flow.
Hydraulic Lift Ram: Ideal Force and Swept-Volume Calculator | FIRGELLI
Convert ram bore and pressure into ideal force, force-equivalent mass, area and swept volume per millimetre. These values do not establish a lift’s load rating.
Hydraulic Piston Force Calculator: Pressure and Bore | FIRGELLI
Calculate ideal gross cap-end piston force from pressure and bore. Compare newtons, kilonewtons and tonne-force; rod-side force, friction and component ratings are not included.
Horizontal Hydraulic Elevator: Ideal Travel and Force Ratios | FIRGELLI
Compare input and output travel in a separate ideal transmission exercise. Work conservation gives the required force multiple; elevator sizing and reeving are not modeled.
High-Pressure Turbine: Shaft and Tip-Kinematics Calculator | FIRGELLI
Convert entered shaft power, rotor speed and diameter into torque, tip speed and centripetal acceleration. Turbine performance, pressure drop and safe operating speed are not...
Hero’s Fountain: Pressure Transfer and Head Scenarios | FIRGELLI
Explore the three-vessel pressure-transfer principle and illustrative head fractions with ideal nozzle flow. Vessel pressure, actual jet performance and run duration are not predicted.
Heppel Rotary Pump: Historical Mechanism and Flow Calculator | FIRGELLI
Learn the Heppel four-wing arrangement and compare entered displacement, efficiency and hydraulic power. The generic two-rotor illustration does not model the historical wing linkage.
Half-Yoke Connection: Central-Crank Pump Motion Calculator
Explore a half-yoke joining pump piston rods around a central crank. Calculate stroke, selected piston position, velocity and connecting-rod angle.
Golding Centrifugal Pump: Ideal Head and Power Calculator | FIRGELLI
Explore centrifugal impeller motion and calculate ideal Euler head, delivered head and fluid power from diameter, speed, outlet whirl and flow.
Telescopic Gasometer: Ideal Pressure Calculator | FIRGELLI
Explore a telescopic water-sealed gas holder and compare ideal gauge pressure for a selected supported mass and diameter. Includes equations and examples.
Single-Lift Gasometer: Pressure and Swept-Volume Calculator | FIRGELLI
Explore a water-sealed bell and calculate ideal pressure, swept gas volume and a chosen water-head allowance from effective weight, diameter and lift.
Fourneyron Turbine: Water Power and Shaft Torque | FIRGELLI
Explore an outward-flow reaction turbine and estimate shaft power and mean torque from net head, flow, assumed efficiency and speed.
Four-Stage Centrifugal Pump: Head and Power Calculator | FIRGELLI
Compare four equal pump-stage heads, one overall head reduction, water pressure rise and estimated shaft power from entered flow and efficiency.
Force Pump Form 2: Double-Acting Displacement Calculator | FIRGELLI
Calculate full-face and rod-side displacement, theoretical flow and estimated delivery for a double-acting pump with one rod and entered efficiency.
Force Pump Form 1: Plunger Flow, Force and Power Calculator | FIRGELLI
Calculate single-acting plunger displacement, estimated US GPM, hydraulic force and fluid power using entered efficiency and pressure rise.
Flutter Wheel: Sawmill Motion and Water-Power Calculator | FIRGELLI
Explore the water wheel and crank drive of a sash sawmill. Estimate power, torque at entered RPM and float passage frequency with explicit model assumptions.
Flexible Water Main: Joint Motion and Geometric Comparison | FIRGELLI
Explore joint-motion concepts and idealized projection and slip terms. The calculator does not establish physical pipeline displacement or seismic capacity.
Flexible Pipe Joints: Free Thermal Growth Comparison | FIRGELLI
Calculate free pipe growth from length, temperature rise and expansion rate. Compare an axial allowance while keeping joint motion and restraint requirements clear.
Filtering Cistern: Chamber Volume and Flow Calculator | FIRGELLI
Follow a historical cistern’s layered filter bed and perforated collecting pipes. Calculate nominal volume/flow time and rectangular plan geometry separately.
Emery Rotary Pump: Guided Wings and an Eccentric Hollow Driver
Explore the Emery pump with four guided rigid wings, a concentric pin groove and an eccentric hollow driver. Includes geometric pocket-volume calculations.