Recent Blogs
Sellers' Restarting Injector: How It Works, Parts, and Locomotive Feedwater Uses Explained
Explore the fixed tubes and concentric overflow checks in the Sellers restarting injector. Compare throat areas and a selected static delivery-pressure threshold.
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.
Sellers' Self-adjusting Injector Mechanism: How It Works, Parts, Diagram, and Uses Explained
Sellers' self-adjusting injector explained — steam-driven boiler feedwater pump that auto-recovers from breaks in flow. Used on 19th-century locomotives and mill engines.
Metropolitan Injector: Components and Static-Head Comparison
Explore the Metropolitan injector components and compare entered boiler and delivery pressures with the hydrostatic head associated with a suction lift.
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.
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.