Tube Expanders

 

24 Series Condenser Tube Expanders

24 Series

Condenser Tube Expanders

Elliott’s 24 Series Condenser Expanders are ideal for expanding tubes in chillers, heat exchangers, feedwater heaters, fin fan coolers, and surface condensers.

  • Tube Size: 0.500" to 2.000" (12.7 - 50.8mm) OD

  • Roll Type: Straight

  • Application: Chiller, heat exchanger, feedwater heater, fin fan cooler, and surface condenser.

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PX24 Series Parallel Pin Condenser Expanders

PX24 Series

Parallel Pin Condenser Expanders

Elliott's PX24 Series offer true parallel pin tube expansion, which can reduce the stress created on welded tube joints when compared to tapered rolling.

  • Tube Size: 0.750″ to 1.000″ (19.05 – 25.4mm) OD

  • Roll Type: Parallel Pin Condenser Expander

  • Application: Chillers, heat exchangers, feedwater heaters, fin fan coolers, and surface condensers.

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900 Series Flaring Boiler Tube Expanders

900 Series

Flaring Boiler Tube Expanders

Elliott’s 900 Series Flaring Boiler Expanders are self-feeding, specifically made for use in superheaters in watertube boilers or evaporator tubes. In only one operation, these expanders roll tubes parallel and flare projecting tube ends at 15 degrees from the tool center line.

  • Tube Size: 0.620” to 1.500” (15.4 – 38.1mm) OD

  • Roll Type: Flaring

  • Application: Superheaters, watertube boilers, and evaporator tubes.

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23 Series Condenser Tube Expanders

23 Series

Condenser Tube Expanders

  • Tube Size: 0.250" to 0.375" (6.4 - 9.5mm) OD

  • Roll Type: Straight

  • Application: Chiller, heat exchanger, feedwater heater, fin fan cooler, and surface condenser.

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4480 Series Single Roll Beading Tube Expander

4480 Series

Single Roll Beading Tube Expander

Elliott’s 4480 Series Single Roll Beading Expanders expand the tube into the tube sheet while forming a bead at the end of the tube required in Firetube boiler applications.

  • Tube Size: 1.500” to 3.000” (38.1 – 76.2mm) OD

  • Roll Type: Roll Beading

  • Application: Firetube Boiler

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1500 Series Flaring Boiler Tube Expanders

1500 Series

Flaring Boiler Tube Expanders

Elliott’s 1500 Series Flaring Boiler Expanders are self-feeding, specifically made for use in Firetube and watertube boilers. In only one operation, these expanders roll tubes parallel and flare projecting tube ends at 20 degrees from the tool center line.

  • Tube Size: 1.750” to 4.000” (44.5 – 101.6mm) OD

  • Roll Type: Flaring

  • Application: Firetube Boiler and Watertube Boiler

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3400 Series Flaring Boiler Tube Expanders

3400 Series

Flaring Boiler Tube Expanders

Elliott’s 3400 Series Flaring Boiler Expanders are the recommended tube expanders for expanding and flaring tubes in Firetube and watertube boilers. The prong style collar allows for uniform flare lengths as well as torque controlled tube rolling to obtain uniform expanded joints.

  • Tube Size: 1.500” to 4.000” (38.1 – 101.6mm) OD

  • Roll Type: Flaring

  • Application: Firetube and Watertube Boiler

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3300 Series Straight Boiler Tube Expanders

3300 Series

Straight Boiler Tube Expanders

Elliott’s 3300 Series Straight Boiler Expanders are the preferred tube expanders for expanding tubes in Firetube boilers or in self-contained steam boiler units. They are recommended for any requirement for parallel expansion of tubes in tube sheets.

  • Tube Size: 1.500” to 4.000” (38.1 – 101.6mm) OD

  • Roll Type: Straight

  • Application: Firetube Boiler and Steam Boiler

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DRE Series Deep Roll Boiler Tube Expanders

DRE Series

Deep Roll Boiler Tube Expanders

Elliott’s DRE Series Deep Roll Boiler Expanders are used for deep and hard rolling of steam and mud drums found in high-pressure boilers.

  • Tube Size: 1.750” to 4.000” (44.5 – 101.6mm) OD

  • Roll Type: Straight

  • Application: Steam & Mud Drums and Watertube Boiler

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40 Series Straight Roll Boiler Tube Expanders

40 Series

Straight Roll Boiler Tube Expanders

Elliott’s 40 Series Straight Boiler Expanders are recommended for re-rolling leaky tube joints in Firetube boilers. Self-feeding, these expanders should primarily be used by hand.

  • Tube Size: 2.000” to 3.000” (50.8 – 76.2mm) OD

  • Roll Type: Straight

  • Application: Firetube Boiler

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6621 Series Sugar Mill Vacuum Pan Expanders

6621 Series

Sugar Mill Vacuum Pan Expanders

Elliott’s 6621 Series Sugar Mill Vacuum Pan Expanders are ideal for the fabrication and re-tube of sugar mill vacuum pans.

  • Tube Size: 3.000” to 4.000” (76.2 – 101.60mm) OD

  • Roll Type: Straight

  • Application: Sugar Mill

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3321 Series Sugar Mill Vacuum Pan Expander

3321 Series

Sugar Mill Vacuum Pan Expander

Elliott’s 3321 Series Sugar Mill Vacuum Pan Expanders are ideal for re-rolling tubes in vacuum pans.

  • Tube Size: 3.000” to 4.000” (76.2 – 101.6mm) OD

  • Roll Type: Straight

  • Application: Sugar Mill

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Collet Style Support Sheet Expanders

Elliott’s Collet Style Support Sheet Expanders are used with a handheld short stroke hydraulic ram and lightweight, low-pressure hydraulic pump to support sheet expand finned or prime surface tubes commonly found in chillers.

  • Tube Size: 0.750” to 1.000” (19.1 – 25.4mm) OD

  • Roll Type: Straight

  • Application: Chiller

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Suggested Articles

Rolling Motors & Torque Control

There are two motor power sources that are used for expanding tubes mechanically: electric rolling motors and pneumatic rolling motors. Determining what motor to use for a job will depend on operator preference, availability of electricity or air, and the application.

How To Expand Welded Tubes

Expanding tubes after they have been welded can be frustrating for operators. If not rolled properly, tube material can build up and put stress on the weld. In extreme cases the tube material can build up so much that the expander can get stuck in the tube, delaying the job.

Expanding Tubes In Heat Exchangers

Before you can start rolling, you will need to select the right expander for the job. Tube OD, and Wall/BWG will determine the size of the expander. However, there are some other factors to consider, such as tube projection, roll length, reach requirements, space constraints, and whether it’s minimum or average wall tubing.

Expanding Fire Tube Boiler Tubes

Firetube boiler tubes consist of an expanded and beaded tube end. The method for achieving a bead has advanced over the years to include both hand beading and single roll beading expanders. In order to ensure a proper bead, there are several steps that need to take place before expansion can occur.

Materials, Tube Leaks, & Pre-Expansion Steps

In general, you want to roll to the lowest wall reduction possible where a tight tube to tube sheet joint can be achieved. The harder the material the less wall reduction required to obtain a tube joint.  You should always consult the manufacturer of the heat transfer vessel for specific information before undertaking any maintenance procedures.

Contact us for more information or to request a quote.