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124
FIGURE 7005 ROUGHNECK®COUPLING
Nominal
Size O.D.
Max. Wk.
Pressure
Max. End
Load
No. of
Grippers
Coupling Dimensions Coupling Bolts Specifed Torque § Approx.
Wt. Ea.
X
Y
Z Qty.
Size
Min.
Max
In./DN(mm)
In./mm PSI/bar
Lbs./kN
In./mm In./mm In./mm
In./mm Ft.-Lbs./N-m Ft.-Lbs./N-m Lbs./Kg
2 2.375 750 3,323
8
3
3
/
4
6
3
/
8
3
1
/
2
2
5
/
8
x 3
1
/
4
150 190
6.6
50
60.3
51.7
14.78
95
162
89
-
203
257
3.0
2
1
/
2
2.875 600 3,895
8
4
1
/
4
7
1
/
8
3
1
/
2
2
5
/
8
x 3
1
/
4
150 190
7.4
65
73.0
41.4
17.33
108 181
89
-
203
257
3.4
3 3.500 600 5,773
8
4
7
/
8
8
1
/
8
3
1
/
2
2
3
/
4
x 4
1
/
2
200 250 10.5
80
88.9
41.4
25.68
124 206
89
-
271
339
4.8
4 4.500 450 7,157
8
6
3
/
8
9
3
/
8
4
1
/
8
2
3
/
4
x 4
1
/
2
200 250 16.4
100 114.3
31.0
31.84
162 238 105
-
271
339
7.4
5 5.563 350 8,507
8
7
1
/
2
11
1
/
8
4
3
/
8
2
7
/
8
x 5 250 300 23.8
125 141.3
24.1
37.84
191 283 111
-
339
406
10.8
6 6.625 300 10,341 12 8
3
/
4
12
7
/
8
4
3
/
8
2
1 x 6 250 300 31.7
150 168.3
20.7
46.00
222 327 111
-
339
406
14.4
8 8.625 300 17,528 12 10
7
/
8
14
1
/
2
4
1
/
2
4
7
/
8
x 5 250 300 38.6
200 219.1
20.7
77.97
276 368 114
-
339
406
17.5
10 10.750 300 27,229 8 12
5
/
8
18 5
3
/
8
4 1 x 6
1
/
2
500 600
40
250 273.1
20.7
121.12
321 457 137
-
678
814
18.1
12 12.750 250 31,919 12 14
7
/
8
20
1
/
4
5
3
/
8
4 1 x 6
1
/
2
550 700
56
300 323.9
17.2
141.98
378 514 137
-
746
949
25.4
14 14.000 200 30,788 12 16
3
/
4
22
1
/
8
6
1
/
4
4 1 x 6
1
/
2
550 700
88
350 355.6
13.8
136.95
425 562 159
-
746
949
39.9
16 16.000 150 30,159 12 18
3
/
4
24 6
1
/
4
4 1 x 6
1
/
2
550 700
95
400 406.4
10.3
134.15
476 610 159
-
746
949
43.1
FIG. 7005
Roughneck
®
Coupling
The Fig. 7005 Roughneck Coupling is an effective and reliable
way of joining plain-end or beveled end pipe. The Roughneck
Coupling is ideal for use in a variety of applications including
mining, process piping, manifold piping and oilfeld services.
The unique gripper action provides a positive pipe joint and
allows for working pressure ratings up to 750 PSI (52 bar).
material specifications
HOUSING:
Ductile Iron conforming to ASTM A 536, or Malleable Iron
conforming to ASTM A 47, Grade 32510.
BOLT & NUTS:
Heat treated, oval-neck track head bolts conforming to
ASTM A 183 Grade 2 with a minimum tensile strength of 110,000 psi and
heavy hex nuts of carbon steel conforming to ASTM A 563 Grade A or
Grade B, or J995 Grade 2. Bolts and nuts are provided zinc electroplated
as standard.
GRIPPERS:
2"-8" heat treated, electroplated carbon steel. 10”-16” heat
treated stainless steel.
COATINGS:
Rust inhibiting paint - Color: Orange Standard Hot dipped
Zinc Galvanized (Optional) Other Colors Available (IE: RAL3000 and
RAL9000). For other Coating requirements contact a Gruvlok
Representative.
GASKET:
Grade E (EPDM) or Grade T(Nitrile) Elastomers with properties
as designed by ASTM D 2000 for each gasket grade.
See Coupling data chart notes on page 16.
§ – For additional Bolt Torque information, see page 184.
Not for use in copper or PVC systems.
See Installation & Assembly directions on page 164.
Working pressure and end load are based on a
properly assembled Roughneck coupling with
bolts fully torqued to the above specifcations,
on plain-end or beveled standard wall steel
pipe and Gruvlok Plain- End Fittings.
Roughneck Couplings are designed to be used on
plain-end pipe and Gruvlok Plain-End Fittings
only. For externally coated pipe applications,
contact a Gruvlok Representative.
Not recommended for use on steel pipe with a
hardness greater than 150 Brinell, plastic, HDPE,
cast iron or other brittle pipe.
*Bolt torque ratings shown must be applied at
installation.
Housing
Gasket
Pipe
Grippers
GL-2.10