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BOILER TUBE EXPANDERS

EXPANDERS

GP Universal Joints

GP Universal Joints
"GP" Universal Joints
The Model GP is a female square type, smoothly rotating and deflecting upon a common axis. It has unusual strength for its size and is popular with all boiler makers. Minimum working angle is 135°.
 
Square Size Square Size Overall Length
Inches
Major Dia.
Inches
Part No.
Female
Inches
Female
Inches
3/8 3/8 2-1/4 7/8 42853
1/2 1/2 2-3/8 1 20186
3/4 3/4 3-1/4 1-1/2 20187
1 1 3-3/4 1-3/4 20188
 





 

Bi-Universal Joints

Bi-Universal Joints
Bi-Universal Joints
The Bi-Universal Joint is suitable for the unusual situation requiring deflecting greater than provided by the Model GP Universal Joint.
 
Square Size Square Size Overall Length
Inches
Major Dia.
Inches
Part No.
Female
Inches
Female
Inches
3/8 3/8 3-15/16 1-1/8 20081
1/2 1/2 4 1-5/16 20083
3/4 3/4 4-11/16 1-5/8 20085
1 1 6-1/32 2-1/4 20087
 





 

Male-Female Universal Joints

Male-Female Universal Joints
Male-Female Universal Joints
The Male-Female Universal Joint is suitable for use in superheater headers. It has the same features as the Model GP Universal Joint.
 
Square Size Square Size Overall Length
Inches
Major Dia.
Inches
Part No.
Inches
Female
Inches
Male
Inches
3/8 3/8 2-1/2 7/8 42803
1/2 1/2 2-19/32 1 21285
*1/2 1/2 2-3/8 1 21356
3/4 3/4 3-9/32 1-1/2 21286
1 1 4 1-3/4 21287
Male-Female Universal Joint, Part no. 21356, is extremely short and most suitable for work in crowded super-heater headers. It is only used with shortened shanks of expander mandrels.