A- Tube Sheet Minimum
B- Tube Sheet Maximum

FOR TUBES INTERNAL DIAMETER
FROM 0.152" (3.8mm) TO .331" (8.4mm)
TUBE EXPANDERS
FITTED WITH
ROLLER LENGTH
FOR TUBE SHEET
ADJUSTABLE RANGE


MINIMUM
A
MAXIMUM
B
1-1/2" (38.1mm)

1/2    (12.7 mm)

1-1/2” (38.1 mm)

2-1/4" (57.1 mm)

1-1/4” (31.7mm)

2-1/4" (57.1mm)

Tube
O.D.
 in.
mm

Tube
Thickness

bwg.   in.   mm.

Tube
I.D.

in.      mm.

Minimum I.D.
Tool Enters

in.     mm.

Maximum
Expansion
of Tool
in.     mm.

Expander  with 3/4”
(19.05 mm) Long Rollers
Complete     Mandrel    Rollers
Tool No.          No.         Set No.

Expander  with 1-1/4”
(31.75 mm) Long Rollers
Complete     Mandrel    Rollers
Tool No.          No.         Set No.

SQ.
DR.

1/4

6.35

18   .049  (1.24)
19   .042   (1.06)
20   .035   (0.88)

.152   (3.8)
.166   (4.2)
.180   (4.5)

.151   (3.8)
.165   (4.1)
.175   (4.4)

.173   (4.4)
.185   (4.7)
.200   (5.1)

R921
R922
R923

M-39
M-39
M-40

921
923
923

in
1/4

mm
6.3

21   .032   (0.81)
22   .028   (0.71)
23   0.25   (0.63)

.186   (4.7)
.194   (4.9)
.200   (5.0)

.180   (4.5)
.190   (4.8)
.195   (4.9)

.207   (5.2)
.216   (5.5)
.222   (5.6)

R924
R925
R926

M-40
M-41
M-41

924
925
923

24   0.22   (0.55)
28   .014   (0.35)

.206   (5.2)
.222   (5.6)

.201   (5.1)
.222   (5.6)

.230  (5.8)
.238   (6.0)

R927
R928

M-41
928

924
903

29   .013   (0.33)
30   .012   (0.30)

.224   (5.7)
.226   (5.7)

.222   (5.6)
.222   (5.6)

.238   (6.0)
.238   (6.0)

R928
R928

928
928

903
903

3/8

9.53

14   .083   (2.10)
15   .072   (1.82)
16   .065   (1.65)

.209   (5.3)
.231   (5.8)
.245   (6.2)

.201   (5.1)
.230   (5.8)
.240   (6.1)

.232   (5.8)
.265   (6.7)
.275   (6.9)

R927
R915
R916

M-41
M-42
M-36

924
903
916

916 L

M-36 L

916 L

17   .058   (1.47)
18   .049   (1.24)
19   .042   (1.06)

.259   (6.5)
.277   (7.0)
.291   (7.3)

.255   (6.4)
.272   (6.9)
.286   (7.2)

.289   (7.3)
.307   (7.8)
.320   (8.1)

R918
R901
R903

M-38
M-30
M-31

903
903
903

920
902
904

M-38
M-30
M-31

904
904
904

20   .035   (0.88)
21   .032   (0.81)
22   .028   (0.71)

.305   (7.7)
.311   (7.9)
.319   (8.1)

.300   (7.6)
.306   (7.7)
.314   (7.9)

.334   (8.4)
.340   (8.6)
.349   (8.8)

R905
R907
R909

M-32
M-33
M-34

907
907
909

906
908
910

M-32
M-33
M-34

908
908
910

23   .025   (0.63)
24   .022   (0.55)

.325   (8.2)
.331   (8.4)

.320   (8.1)
.320   (8.1)

.357   (9.0)
.357   (9.0)

R911
R911

M-34
M-34

911
911

912
912

M-34
M-34

912
912




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