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technical data
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206
GRUVLOK COPPER PREP SPECIFICATIONS
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-8-
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Nominal
Tubing
Size
Tubing Outside Diameter
Tube End Connection Diameter
Gasket
Seat A
± .030
± .77
Groove
Width B
± .030
± .77
Groove Diameter “C” Groove
Depth D
(Ref. Only)
Allow
Wall
Thick
T
Max.
Flare
Dia.
Actual
Tolerance
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 –In./mm In./mm In./mm In./mm
2
2.125
0.002
0.002
2.375
0.045
0.024
0.625
0.344
2.250 -0.015 0.063
0.059
2.447
50
54.0
0.05
0.05
60.33
1.14
0.61
15.88
8.74
57.15
-0.381
1.60
1.50
62.15
2
1
/
2
2.625
0.002
0.002
2.875
0.029
0.029
0.625
0.344
2.720 -0.018 0.077
0.065
2.962
65
66.7
0.05
0.05
73.03
0.74
0.74
15.88
8.74
69.09
-0.46
1.96
1.65
75.23
3
3.125
0.002
0.002
3.500
0.035
0.031
0.625
0.344
3.344 -0.018 0.078
DWV
3.566
80
79.4
0.05
0.05
88.90
0.89
0.79
15.88
8.74
84.94
-0.46
1.98
90.58
4
4.125
0.002
0.002
4.500
0.045
0.031
0.625
0.344
4.334 -0.020 0.083
DWV
4.576
100
104.8
0.05
0.05
114.30
1.14
0.79
15.88
8.74
110.08
-0.51
2.11
116.23
5
5.125
0.002
0.002
5.562
0.056
0.031
0.625
0.344
5.395 -0.022 0.084
DWV
5.650
125
130.2
0.05
0.05
141.27
1.42
0.79
15.88
8.74
137.03
-0.56
2.13
143.51
6
6.125
0.002
0.002
6.625
0.063
0.031
0.625
0.344
6.455 -0.022 0.085
DWV
6.719
150
155.6
0.05
0.05
168.28
1.60
0.79
15.88
8.74
163.96
-0.56
2.16
170.66
8
8.125
0.002
0.004
8.625
0.063
0.031
0.750
0.469
8.441 -0.025 0.092
DWV
8.719
200
206.4
0.05
0.10
219.08
1.60
0.79
19.05
11.91
214.40
-0.64
2.34
221.46
GRUVLOK ADVANCED COPPER-METHOD (IPS)
Copper Prep Specifcations
Gruvlok copper prep roll groove specifcations
for Types K, L, M and DWV copper tubing
Out of roundness: Difference between maximum O.D. and minimum O.D. measured at 90° must not
exceed tolerance listed.
The maximum allowable tolerance from square cut ends is 0.030" for 2" thru 3"; 0.045" for 4" thru
6"; and 0.060" for 8" measured from a true square line.
NOTES:
COLUMN 1
Nominal ASTM B 88 copper tubing size.
COLUMN 2
Outside diameter of copper tubing in accordance with ASTM B 88.
COLUMN 3
Outside diameter of Copper Prep roll grooved copper tubing.
COLUMN 4
Gasket seat and groove must be free from scores, seams, chips, rust or
scale which may interfere with proper coupling assembly.
COLUMN 5
Groove width is to be measured between vertical fank of the groove
size walls.
COLUMN 6
The groove must be of uniform depth around the entire tubing circumfer-
ence. (See column 7).
COLUMN 7
Groove depth: for reference only. Groove must conform to the groove
diameter “C” listed in column 6.
COLUMN 8
Minimum allowable copper tube wall thickness which may be prepared to
Gruvlok Copper-Prep specifcations.
COLUMN 9
Maximum allowable end fare diameter. Measured at the most extreme
tubing end diameter of the gasket seat area.
B
A
T
C
D
Connection
Diameter
Tub e
O.D.
GL-2.10