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4 And 5 Roll Condenser Expanders (Series 72-D)

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These expanders are used on light Gauge tubes of stainless steel, titanium, and materials of similar hardness. 5-Rolls with light wall tubes can prevent triangulation of the tube to the tube hole. Wilson Thin Gauge collars also offer a large advantage for projection of tube. All assemblies come complete with mandrels, rolls, cage, and collars with a 1/16-inch standard recess. 

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  • A = 1/2 (12.7mm) to 1 1/2-Inch (38.1mm) Tube Outer Diameter
  • B = 13 (2.4mm) to 25 (.5mm) Gauge
  • C = 72-D – 1/2 (12.7mm) to 2 1/4-Inch (57.2mm) Tubesheet 73-D – 1 1/2 (38.1mm) to 6 1/4-Inch (158.8mm) Tubesheet

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TubeRange72-D Expander 1/2 – 2 1/4-Inch Reach2 1/4-Inch (57.2) Roll Length Roll Set
ODWallAssemblyMandrelCage
Inches(mm)GAInches(mm)Part No.Part No.Part No.
1/2(12.7)18-19.387-.449(9.8-11.4)42248422864226733380-4
20-25.425-.480(10.5-12.2)422494228742268
5/8(15.9)18-19.515-.570(13.1-14.5)42250422884226933382-4
20-25.537-.596(13.6-15.1)422514227033377-4
3/4(19.1)13-14.537-.596(13.6-15.1)42329
16-17.605-.676(15.2-17.2)42252422894227133383-5
18-19.635-.715(16.1-18.2)422534229042272
20-25.665-.750(16.9-19.1)422544227333384-5
7/8(22.2)16-17.717-.795(18.2-20.2)422554227433385-5
18-19.758-.859(19.3-21.9)422564229142275
20-25.790-.885(20.1-22.5)422574227633386-5
1(25.4)13-15.790-.885(20.1-22.5)42330
16-17.850-.922(21.6-23.4)422584229242277
18-19.885-.950(22.5-24.1)422594229342278
20-25.915-1.015(23.2-25.8)422604227933387-5
1 1/8(28.6)18-191.010-1.075(25.7-27.3)422614228033389-5
20-251.040-1.125(26.4-28.6)422624229442281
1 1/4(31.8)18-191.135-1.200(28.8-30.5)422634228233390-5
20-251.165-1.250(29.6-31.8)422644229542283
1 1/2(38.1)18-191.385-1.450(35.2-36.8)42265422964228433392-5
20-251.415-1.500(35.9-38.1)422664229742285

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