Simpson Strickland Feedwater Pump Castings

This pump body is a replica of the refined engine-driven pumps Simpson Strickland developed for its engines—essential to restore a Simpson Strickland engines or to add a well-functioning pump to other engines. While simple in appearance, these pumps reveal careful fluid design—and cleverly complex foundry work to prevent easy copying!

Castings in bronze include cast body, displacer column, and gland.

Images show this replica pump sitting beside an original pump, and as assembled on an engine.

See Simpson Strickland’s Dwg 6134 and its chart of pump displacer sizes for 3-inch, 3-1/2-inch, 4-inch, and 4-1/2-inch stroke engines. This “Rosetta Stone” informs pump dimensions! Simpson Strickland’s patented “quill-check-valve-in displacer,” was refined after performance reports from hundreds of engines they produced.