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FIG. 7400SS
Rigidlite
®
Coupling
The Gruvlok Figure 7400SS coupling is available in 1
1
/
4
" – 8"
sizes. The standard material is ASTM A 743 CF8M (Type 316)
cast stainless steel which is ideal for corrosive environments.
Any Gruvlok gasket material may be utilized in the 7400SS
coupling for a broad array of applications. Gasket properties
are as designated in accordance with ASTM D 2000. The
7400SS is provided with ASTM A 193 B8M bolts and ASTM A
194 Grade 8M nuts.
MATERIAL SPECIFICATIONS
STAINLESS STEEL BOLTS & NUTS:
Hex head stainless steel bolts, Type 316 per ASTM A 193 Grade B8M
class 1 and heavy hex stainless steel nuts, Type 316 per ASTM A 194
Grade 8M class 1. Nuts and bolts are zinc plated to prevent common
thread galling. Contact a Gruvlok Representative for more information.
HOUSING:
Cast Stainless Steel (Type 316) - ASTM A 743 CF8M
GASKETS: Materials
Properties as designated in accordance with ASTM D 2000
Grade “E” EPDM
(Green color code) NSF 61 Certifed
-40°F to 230°F (Service Temperature Range)(-40°C to 110°C)
Recommended for water service, diluted acids, alkalies solutions,
oil-free air and many chemical services.
NOT FOR USE IN PETROLEUM APPLICATIONS.
Grade “T” Nitrile
(Orange color code)
-20°F to 180°F (Service Temperature Range)(-29°C to 82°C)
Recommended for petrolium applications. air with oil vapors and
vegetable and mineral oils.
NOT FOR USE IN HOT WATER OR HOT AIR.
Grade “O” Fluoro-Elastomer
(Blue color code)
-20°F to 300°F (Service Temperature Range)(-29°C to 149°C)
Recommended for high temperature resistance to oxidizing acids,
petroleum oils, hydraulic fuids, halogenated hydrocarbons and
lubricants.
Grade “L” Silicone
(Red color code)
-40°F to 350°F (Service Temperature Range)(-40°C to 177°C)
Recommended for dry, hot air and some high temperature
chemical services.
GASKET TYPE:
Standard C Style
Flush Gap (1
1
/
4
" – 8")
LUBRICATION:
Standard Gruvlok
Gruvlok Xtreme
TM
(Do Not use with Grade “L”)
* All bolts are hex head design Type 316 Grade B8M Class 1 stainless
steel to ASTM A 193, with Type 316 Grade 8M stainless steel heavy
hex nuts conforming to ASTM A 194. Use of suitable anti-galling
thread compound is recommended.
† Ratings apply when used with Schedule 40 ASTM A 312 Type 304
stainless steel pipe for all sizes. Refer to ratings chart for additional data.
FIGURE 7400SS - RIGIDLITE STAINLESS STEEL COUPLING
Nominal
Size O.D.
Max.
Wk.
Pressure†
Max.
End
Load†
Range of
Pipe End
Separation
Coupling Dimensions Coupling Bolts* Specifed
Torque
Approx.
Wt.
Ea.
X Y
Z Qty.
Size
Min. Max.
In./mm In./mm PSI/bar
Lbs./kN In./mm In./mm In./mm In./mm
In./mm Ft.-Lbs./N-m Lbs./Kg
1
1
/
4
1.660
300 649
0-
1
/
8
2
7
/
8
4
1
/
8
1
3
/
4
2
3
/
8
x 2
1
/
4
15 20 1.6
32
42.4
20.7
2.89
0-3.2
73 105 44
M10 x 57 21 27 0.7
1
1
/
2
1.900 300 851
0-
1
/
8
3
1
/
8
4
5
/
8
1
3
/
4
2
3
/
8
x 2
1
/
4
15 20 1.7
40
48.3
20.7
3.78
0-3.2
79 117 44
M10 x 57 21 27 0.8
2 2.375 300 1,329 0-
1
/
8
3
5
/
8
5
3
/
8
1
3
/
4
2
3
/
8
x 2
1
/
4
15 20 2.1
50
60.3
20.7
5.91
0-3.2
92 137 45
M10 x 57 21 27 1.0
2
1
/
2
2.875 300 1,948 0-
1
/
8
4
1
/
8
5
7
/
8
1
3
/
4
2
3
/
8
x 2
1
/
4
15 20 2.3
65
73.0
20.7
8.66
0-3.2
105 149 44
M10 x 57 21 27 1.0
3 3.500 300 2,886 0-
1
/
8
4
5
/
8
6
5
/
8
1
3
/
4
2
1
/
2
x 2
3
/
4
50 60 3.1
80
88.9
20.7 12.84
0-3.2
117 168 44
M12 x 70 68 80 1.4
4 4.500 300 4,771 0-
1
/
4
6 7
3
/
4
1
7
/
8
2
1
/
2
x 2
3
/
4
50 60 4.4
100 114.3 20.7 21.22
0-6.4
152 197 48
M12 x 70 68 80 2.0
6 6.625 275 9,480 0-
1
/
4
8
1
/
8
11
1
/
8
2 2
3
/
4
x 3 80 100 7.8
150 168.3 19.0 42.17
0-6.4
206 283 51
M20 x 76 110 150 3.5
8 8.625 275 16,067 0-
1
/
4
10
3
/
8
13
5
/
8
2
3
/
8
2
3
/
4
x 3 80 100 13.2
200 219.1 19.0 71.47
0-6.4
264 346 60
M20 x 76 110 150 6.0
Y
Z
X
CAUTION:
Contact your local Gruvlok representative for corrosive
application environments.
No coatings or zinc options.
GL-2.10