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Duplex steam pump - stock code 9144

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Duplex steam pump
Duplex steam pump
Duplex steam pump
Duplex steam pump
Duplex steam pump
Duplex steam pump
Duplex steam pump
Duplex steam pump
Duplex steam pump
Duplex steam pump
Duplex steam pump
Duplex steam pump
A large Duplex steam pump, apparently new and unused and complete with displacement lubricator, pipework and unions. Built to a high standard, fit and finish is good, with nice detail touches like threaded jacking holes in the cylinder covers.

Currently mounted on a wooden base for display, it's crying out to be taken off and bolted to the smokebox of something large and narrow gauge - think Tinkerbell, Thomas II (even, dare we say, one of our own Big Staffords or Feldbahns).

It starts easily and can be throttled back to run at a slow rate. Glands at the top of the water cylinders leak slightly.

Running well on air, it would settle to a more even beat running on steam and pumping against the back pressure of a boiler instead of simply circulating water around a plastic pot. There's a video of it running at a slow tickover here - at that speed it pumps around 400ml per minute.

length/inches 9
width/inches 6
height/inches 9
weight/kg 5.5