3-Roll Small Condenser Tube Expander (Series 41-A)

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The Series 41-A Expander was 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.

3 Roll Condenser Expanders – 1/4 to 3/8-Inch Outer Diameter — (1″ (25.4mm) Roll Length)

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  • 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)

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Tube41-A Expander 1/4-1-Inch Reach1-Inch (25.4) Roll Length Common Roll Set – Part No.
ODGARangeAssemblyMandrelCage
Inches(mm)Inches(mm)Part No.Part No.Part No.
1/4(6.4)18.147-.174(3.7-4.4)343390000343480000343750000
19.159-.186(4.0-4.7)343880000343800000343890000343900000
20.175-.202(4.4-5.1)343380000343470000343740000
21.180-.207(4.6-5.3)343850000343870000343860000
22.189-.216(4.8-5.5)343370000343460000
23.195-.222(5.0-5.6)344080000344130000344170000
24.201-.228(5.1-5.8)343360000343790000343450000343730000
26.209-.236(5.3-6.0)344070000344120000344160000
28.216-.244(5.5-6.2)343910000344000000343990000
3/8(9.5)15.225-.266(5.7-6.8)344180000344190000343730000
16.237-.278(6.0-7.1)343350000343780000343440000343720000
17.253-.294(6.4-7.5)344060000344110000343990000
18.269-.310(6.8-7.9)343340000343430000343710000
19.283-.324(7.2-8.2)344050000343770000344100000344150000
20.297-.338(7.5-8.6)343330000343420000
21.303-.344(7.7-8.7)343650000343670000343700000
22.311-.352(7.9-8.9)343320000343660000343410000
23.317-.358(8.1-9.1)344040000344090000344140000
24.323-.364(8.2-9.2)343310000343760000343400000343690000

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