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technical data
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204
COLUMN 1 -
Nominal IPS Pipe size.
Nominal ISO Pipe size.
COLUMN 2 -
IPS outside diameter.
ISO outside diameter.
COLUMN 3 & 4 -
Gasket seat must be free from scores, seams,
chips, rust or scale which may interfere with
proper coupling assembly.
COLUMN 5 -
The groove must be of uniform depth around
the entire pipe circumference. (See column 6).
COLUMN 6 -
Groove depth: for reference only. Groove must
conform to the groove diameter “C” listed in
column 5.
COLUMN 7 -
Minimum allowable wall thickness which may be
cut grooved.
Out of roundness:
Difference between maximum O.D.
and minimum O.D. measured at 90° must not
exceed total O.D. tolerance listed.
For IPS pipe,
the maximum allowable tolerance from
square cut ends is 0.03" for 1" thru 3
1
⁄
2
"; 0.045"
for 4" thru 6”; and 0.060" for sizes 8" and above
measured from a true square line.
For ISO size pipe,
the maximum allowable tolerance
from square cut ends is 0.75mm for sizes 25mm-
80mm; 1.15mm for sizes 100mm- 150mm; and
1.50mm for sizes 200mm and above, measured
from a true square line.
Beveled-End Pipe
in conformance with ANSI B16.25
(37
1
⁄
2
°) is acceptable, however square cut is
preferred.
Not to be used with End Guard gaskets.
▼
“A” tolerance +0.030" / -0.060" (+0.77 / -1.54 mm)
CUT GROOVE SPECIFICATIONS
GRUVLOK STANDARD CUT GROOVE SPECIFICATION
FOR STEEL & OTHER IPS OR ISO SIZE PIPE
-1-
-2-
-3-
-4-
-5-
-6-
-7-
Nominal
IPS Pipe
Size
O.D.
Gasket
Seat “A”
±0.030
±0.76
Groove
Width “B”
±0.030
±0.76
Groove Diameter
“C”
Actual
Groove
Depth “D”
(Ref. Only)
Min.
Allow.
Wall
Thick. “T”
Actual
Tolerance
Actual
Tol.
+0.000
In./DN(mm)
In./mm +In./mm -In./mm In./mm In./mm In./mm -In./mm In./mm In./mm
1
1.315 +0.028 -0.015 0.625 0.312 1.190 -0.015 0.062 0.133
25
33.4
+0.71
-0.38
15.88
7.92
30.23
-0.38
1.6
3.4
1
1
⁄
4
1.660 +0.029 -0.016 0.625 0.312 1.535 -0.015 0.062 0.140
32
42.2
+0.74
-0.41
15.88
7.92
38.99
-0.38
1.6
3.6
1
1
⁄
2
1.900 +0.019 -0.019 0.625 0.312 1.775 -0.015 0.062 0.145
40
48.3
+0.48
-0.48
15.88
7.92
45.09
-0.38
1.6
3.7
2
2.375 +0.024 -0.024 0.625 0.312 2.250 -0.015 0.062 0.154
50
60.3
+0.61
-0.61
15.88
7.92
57.15
-0.38
1.6
3.9
2
1
⁄
2
2.875 +0.029 -0.029 0.625 0.312 2.720 -0.018 0.078 0.187
65
73.0
+0.74
-0.74
15.88
7.92
69.09
-0.46
2.0
4.8
3 O.D.
2.996 +0.030 -0.030 0.625
0.312
2.845 -0.018 0.076
0.188
76.1 76.1 +0.76 -0.76 15.88 7.92 72.26 -0.46
1.9
4.8
3
3.500 +0.035 -0.031 0.625 0.312 3.344 -0.018 0.078 0.188
80
88.9
+0.89
-0.79
15.88
7.92
84.94
-0.46
2.0
4.8
3
1
⁄
2
4.000 +0.040 -0.031 0.625 0.312 3.834 -0.020 0.083 0.188
90
101.6
+1.02
-0.79
15.88
7.92
97.38
-0.51
2.1
4.8
4
1
⁄
4
O.D.
4.250 +0.042 -0.031 0.625
0.375
4.084 -0.020 0.083
0.203
108.0 108.0 +1.07 -0.79 15.88 9.53 103.73 -0.51
2.1
5.2
4
4.500 +0.045 -0.031 0.625 0.375 4.334 -0.020 0.083 0.203
100
114.3
+1.14
-0.79
15.88
9.53
110.08 -0.51
2.1
5.2
5
1
⁄
4
O.D.
5.236 +0.052 -0.031 0.625
0.375
5.084 -0.020 0.076
0.203
133.0 133.0 +1.32 -0.79 15.88 9.53 129.13 -0.51
1.9
5.2
5
1
⁄
2
O.D.
5.500 +0.055 -0.031 0.625
0.375
5.334 -0.020 0.083
0.203
139.7 139.7 +1.40 -0.79 15.88 9.53 135.48 -0.51
2.1
5.2
5
5.563 +0.056 -0.031 0.625 0.375 5.395 -0.022 0.084 0.203
125
141.3
+1.42
-0.79
15.88
9.53
137.03 -0.56
2.1
5.2
6
1
⁄
4
O.D.
6.259 +0.063 -0.031 0.625
0.375
6.084 -0.022 0.088
0.249
159.0 159.0 +1.60 -0.79 15.88 9.53 154.53 -0.56
2.2
6.3
6
1
⁄
2
O.D.
6.500 +0.063 -0.031 0.625
0.375
6.334 -0.022 0.085
0.219
165.1 165.1 +1.60 -0.79 15.88 9.53 160.88 -0.56
2.2
5.6
6
6.625 +0.063 -0.031 0.625 0.375 6.455 -0.022 0.085 0.219
150
168.3
+1.60
-0.79
15.88
9.53
163.96 -0.56
2.2
5.6
8
8.625 +0.063 -0.031 0.750 0.437 8.441 -0.025 0.092 0.238
200
219.1
+1.60
-0.79
19.05
11.10 214.40 -0.64
2.3
6.1
10 10.750 +0.063 -0.031 0.750 0.500 10.562 -0.027 0.094 0.250
250
273.1
+1.60
-0.79
19.05
12.70 268.27 -0.69
2.4
6.4
12 12.750 +0.063 -0.031 0.750 0.500 12.531 -0.030 0.109 0.279
300
323.9
+1.60
-0.79
19.05
12.70 318.29 -0.76
2.8
7.1
14 O.D.
14.000 +0.063 -0.031 0.938 0.500 13.781 -0.030 0.109 0.281
355.6
355.6
+1.60
-0.79
23.83
12.70 350.04 -0.76
2.8
7.1
16 O.D.
16.000 +0.063 -0.031 0.938 0.500 15.781 -0.030 0.109 0.312
406.4
406.4
+1.60
-0.79
23.83
12.70 400.84 -0.76
2.8
7.9
18 O.D.
18.000 +0.063 -0.031 1.000 0.500 17.781 -0.030 0.109 0.312
457.2
457.2
+1.60
-0.79
25.40
12.70 451.64 -0.76
2.8
7.9
20 O.D.
20.000 +0.063 -0.031 1.000 0.500 19.781 -0.030 0.109 0.312
508.0
508.0
+1.60
-0.79
25.40
12.70 502.44 -0.76
2.8
7.9
24 O.D.
24.000 +0.063 -0.031 1.000 0.563 23.656 -0.030 0.172 0.375
609.6
609.6
+1.60
-0.79
25.40
14.30 600.86 -0.76
4.4
9.5
28 I.D.
28.875 +0.063 -0.031 1.000 0.563 28.531 -0.030 0.172 0.437
733.4
733.4
+1.60
-0.79
25.40
14.30 724.69 -0.76
4.4
11.1
30 I.D.
31.000 +0.063 -0.031 1.250 0.625 30.594 -0.030 0.203 0.500
787.4
787.4
+1.60
-0.79
31.75
15.88 777.09 -0.76
5.2
12.7
30 O.D.
30.000 0.093 0.031 1.750
▼
0.625 29.500 0.063 0.250 0.625
762.0
762.0
2.36
0.79
44.45
15.88 749.30
1.60
6.35
15.88
T
B
D
C
OD
A
GL-2.10