Boiler Tube Expanding Accessories
1) Drive Extensions :
Are used with universal joints and parallel gear train drives as well as extension couplings for extending expander mandrel reach through water legs, headers etc.
2) Extension Coupling :
Are available in plain or reducing type and are used to connect drive extension, mandrels, and universal joints.
3) Universal Joints :
Female x Female are most common and are used to create flexibility in reaching hard to get to stop.
Double Universal Joints:
Allow more deflection than Female x Female universal joints.
Male x Male: are suitable for use in sugar heater headers.
4) Parallel Gear Train Drive :
Have high strength gears with bronze bushings to expand tubes in hard to reach places.
5) Right Angle Worm Gear Drive :
Used for operating in very confined areas of boiler headers.Has a one piece construction for maximum life.
6) Extension Universal Joint :
Integral design eliminates couplings an extension with a universal joint and are used when expanding tubes through water wall headers, super heater headers, water legs etc.