Recent Blogs
Nathan Injector: Successive Steam-Jet and Overflow Topology
Explore Nathan injector steam-jet and overflow passages. Calculate water-to-steam mass-flow ratio and water volume from entered flows, density and time.
Lunkenheimer Injector: Four Fixed Nozzles and Integral Valves
Explore the Lunkenheimer injector's four fixed nozzles and labelled control valves. Compare illustrative steam- and water-valve positions.
Eberman Injector Mechanism: How the Steam Lifting Injector Works, Parts, and Cone Geometry
Explore the Eberman injector’s sliding combining tube and overflow check. Calculate ideal steam-and-water mass flow and feedwater heating with an animated cutaway.
Standard Injector Mechanism Explained: How It Works, Parts, Diagram & Calculator
Standard injector explained — how a steam-driven feedwater injector works, sizing formula, worked example for heritage boilers, and troubleshooting failures.
Schaeffer and Budenberg Injector Mechanism: How It Works, Parts, Diagram and Uses Explained
Explore the Schaeffer and Budenberg exhaust injector, its hinged combining tube and starting sequence, with a clearly bounded fixed-density calculation.
Penberthy Injector: Historic Automatic Flow Path
Explore the historic Penberthy automatic injector. Follow steam admission, suction, combining, overflow and delivery through an interactive passage diagram.
Park Injector: Hiscox Double-Tube Control Sequence
Explore the Park injector’s tandem lift and force tubes, separate handle commands and automatic overflow check in an interactive component-state diagram.
National Automatic Injector: Four Fixed Tubes and Successive Checks
Explore the National automatic injector's four fixed tubes and successive check valves. Calculate circular bore areas from example diameters.
Little Giant Locomotive Injector: Movable Combining Tube Explained
Explore the Rue Little Giant locomotive injector, with a lever-operated movable combining tube, separate lift steam valve and labelled component diagram.
Little Giant Locomotive Injector: Hiscox Figure 383 Explained
Explore the Little Giant injector in Hiscox figure 383, including its separate lift valve, handle-controlled nozzle passages and movable combining tube.
Leader Injector: Historic Double-Tube Sequence
How the historic Leader Injector uses a three-stage hand-lever sequence to control its lifting nozzle, force valve, overflow and double-tube paths.
Körting Injector: Two-Stage Flow and Volume-Ratio Comparison | FIRGELLI
Explore the historical lifting and forcing stages of a Körting injector. Compare entered volume ratios and temperatures without a performance prediction.
Hancock Inspirator: Double-Tube Animation and Pressure Comparison
Follow the lifting and forcing steam jets of a Hancock inspirator. Compare selected delivery pressures with boiler pressure using adjustable ratios.
Excelsior Injector: Steam and Water Pressure Calculator | FIRGELLI
Follow an Excelsior injector valve sequence and compare static suction pressure, water vapour pressure and a specified delivery-pressure target.
Brownley Injector: Two-stage Animation and Thermal Balance Calculator
Explore the Brownley injector’s lifting and forcing jets and common overflow cock. Compare two-stage condensation temperatures and mass flows in an animated calculator.
Ball-valve Injector Mechanism: How It Works, Parts, Diagram, and Uses in Steam Boilers
Follow a steam injector’s pickup and delivery paths. Compare water pressure head, an ideal energy-equivalent speed, a selected volume ratio and delivery-seat geometry.