Recent Blogs
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.
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.
Rotary Pump (form 2) Mechanism: How It Works, Diagram, Parts, Formula & Uses Explained
Rotary Pump (form 2) explained — how external/internal lobe and gear pumps move viscous fluid at constant flow, with formulas, sizing examples, and industry uses.
Rotary Pump (form 1) Mechanism: How It Works, Parts, Formula, Diagram & Applications Explained
Learn how a Form 1 Rotary Pump works, its key components, sizing formula, and worked example for transferring viscous fluids in industrial systems.
Rotary Pump Mechanism Explained: How It Works, Parts, Diagram, Formula and Uses
Rotary pumps move fluid by trapping it between rotating elements. Learn the geometry, sizing formula, and real applications in chemical and food processing.
Repsold Rotary Pump: Historical Principle and Rotation Calculator
Explore the historical Repsold sector-pump principle with a simplified opposite-rotation illustration. Compare display period, radius ratio and radial difference.
Ramelli Rotary Pump Mechanism Explained: How It Works, Diagram, Parts, Formula and Uses
How the Ramelli rotary vane pump works — sliding-vane geometry, displacement formula, worked example, and real applications in fuel transfer and hydraulics.
Quimby Screw Pump: Declared Flow and Power Ledger
Quimby screw pump explained — twin-screw positive displacement design used in marine fuel transfer, hydraulics, and viscous fluid pumping. Specs, formulas, examples.
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.
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.
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.
Diaphragm Pump Mechanism: Crank Drive, Valves and Flow Calculator
Explore a crank-driven diaphragm pump with animated check valves, exact linkage motion and shape-based ideal displacement and flow calculations.
Diaphragm Pump Mechanism: How It Works, Parts, Diagram, and Industrial Uses Explained
Follow a flexing diaphragm and alternating check valves. Calculate swept volume and ideal mean flow, with estimated delivery from an entered efficiency.
Cochrane Rotary Pump: Eccentric Piston, Sliding Wing and Mean-flow Calculator
Follow the Cochrane pump’s eccentric piston and wing sliding in a casing pocket. Estimate mean delivery and hydraulic output power from entered pump characteristics.
Cary Rotary Pump: Cam-Guided Vanes, Animation and Flow Calculator
Explore Cary’s fixed-cam rotary pump and sliding vanes in an interactive animation. Estimate flow from entered displacement, shaft speed and volumetric efficiency.
Vane Pump: Ideal Flow, Fluid Power and Torque Calculator
Explore sliding vanes in a cam ring. Calculate displacement flow, efficiency-adjusted flow, fluid power and theoretical torque; actual pump ratings and shaft losses require separate...
External Gear Pump: Flow, Fluid Power and Ideal Torque | FIRGELLI
Explore external gear-pump operation and estimate displacement flow, delivered flow, fluid power and ideal torque using a chosen volumetric efficiency.
Plunger Pump: Single-Acting Displacement and Declared Flow
How a plunger pump works, sizing formulas, real industrial examples, and troubleshooting tips for high-pressure flow in oilfield, cleaning and chemical jobs.
Peristaltic Pump: Ideal Raceway Displacement Geometry
Peristaltic pumps move fluid by squeezing a flexible tube with rollers. Learn the math, tube life, and sizing for dosing, lab, and food applications.
Lobe Pump Mechanism Explained: How It Works, Parts, Diagram, and Sanitary Pumping Uses
See how timed lobe rotors carry liquid around a pump casing. Calculate theoretical flow and compare it with flow adjusted by an entered volumetric efficiency.
Force Pump: Piston Motion, Ideal Pressure and Flow Calculator | FIRGELLI
Explore a reciprocating force pump. Compare handle force, leverage, piston dimensions and delivery cadence without confusing discharge head with suction lift.
Reciprocating Pump Mechanism Explained: How It Works, Parts, Diagram, Formula & Calculator
Calculate single-acting pump displacement, theoretical flow, estimated delivered flow and mean piston speed. Explore the suction and delivery valve sequence.