The Series 41-A and 44-A Expanders were primarily designed for very small tubes as generally found on lubricating oil coolers and heat exchangers of similar characteristics. It features an adjustable ball bearing collar to meet the requirements of various thicknesses of tubesheets. The assembly comes complete with mandrel, rolls, cage, and collar with a flush (for 1/4-inch size) or 1/16 recess (for 3/8-inch size).

NOTE: On selection of expanders, wall thickness of tubes run either nominally or minimum wall.

A = 1/4 (6.4mm) to 3/8-inch (9.5mm) tube Outer Diameter

B = 18 (1.2mm) to 28 (.4mm) Gauge

C = 41-A - 1/4 (6.4mm) to 1-Inch (25.4mm)
       44-A - 1 (25.4mm) to 3 1/2-Inch (89.0mm)