ROLL GROOVER 640
15
Checking the Size of Groove
① In case if the size of the groove doesn’t meet
the standard, adjust the fixing position of
Adjust Nut.
▶︎ By turning Adjust Nut clockwise, the groove
becomes narrower. (Narrowing the gap
between Adjust Nut and Body.)
▶︎ By turning Adjust Nut anticlockwise, the
groove becomes deeper. (Widening the gap
between Adjust Nut and Body.)
L
W
f
G
ＯＤ
ｄ
Ｃ＝π×G
Standard Table of Roll Groove（㎜）
Nominal
Pipe O.D.
（O.D.）
Seal Surface width
（Ｌ）
Groove width
（Ｗ）
Groove Diameter
（Ｇ）
Groove
Depth
（ｄ）
A
B
25
1”
34.0
16.0
＋ 0.4
− 0.9
7.1
± 0.8
30.4
0
− 1.0
1.80
32
1 1/4”
42.7
16.0
＋ 0.4
− 0.9
7.1
± 0.8
39.1
0
− 1.0
1.80
40
1 1/2”
48.6
16.0
＋ 0.4
− 0.9
7.1
± 0.8
45.0
0
− 1.0
1.80
50
2”
60.5
16.0
＋ 0.4
− 0.9
8.7
± 0.8
56.9
0
− 1.0
1.80
65
2 1/2”
76.3
16.0
＋ 0.4
− 0.9
8.7
± 0.8
72.2
0
− 1.0
2.05
80
3”
89.1
16.0
＋ 0.4
− 0.9
8.7
± 0.8
84.9
0 − 1.0
2.10
100
4”
114.3
16.0
＋ 0.4
− 0.9
8.7
± 0.8
110.1
0
− 1.0
2.10
125
5”
139.8
16.0
＋ 0.4
− 0.9
8.7
± 0.8
135.5
0
− 1.0
2.15
150
6”
165.2
16.0
＋ 0.4
− 0.9
8.7
± 0.8
160.8
0
− 1.0
2.20
◆ Please make sure to check the size of the groove after the operation.
Measure Groove Diameter (G), Seal Surface Width (L), and Groove Width (W) after the
operation and confirm that they are in the standard.
CAUTION
Summary of Contents for ROLL GROOVER 640
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