Page 25 - GRINNELL Mechanical Products Catalogue

GROOvED COupLiNGS
The GRINNELL Figure 780 Grooved Snap Coupling is designed for quickly connecting and disconnecting cut or rolled grooved piping systems . It utilises a hinged lever mechanism for quickly joining grooved piping segments securely without nuts and bolts . Coupling housing segments are locked in place using a split pin .
Tech Data Sheet: G145
Figure 780 Grooved Snap Couplings
B
C
A Split Pin
1-1⁄2 1.900 300 2 2.375 300 2-1⁄2 2.875 300 - 3.000 300
3 3.500 300
4 4.500 300
- 5.500 300 5 5.565 300 - 6.500 300 6 6.625 300 8 8.625 300
851 0.06 1,329 0.06 1,947 0.06 2,121 0.06 2,886 0.06 4,771 0.13 7,127 0.13 7,289 0.13 9,955 0.13
10,341 0.13 17,528 0.13
2.95 4.65 1.85 3.39 4.76 1.89 3.62 5.91 1.89 3.62 5.91 1.89 4.69 6.42 1.89 6.50 8.07 2.05 7.44 9.96 2.05 7.44 9.96 2.05 8.39 10.94 2.05 8.50 11.06 2.05 10.95 14.02 2.44
3° 48' 0.80 3° 31' 0.74 2° 30' 0.52 2° 24' 0.50 2° 24' 0.50 3° 12' 0.67 2° 37' 0.55 2° 36' 0.54 2° 14' 0.47 2° 10' 0.45 1°40' 0.35
2.2 2.4 3.1 3.1 4.0 5.9 10.8 10.8 12.8 12.8 20.5
Pipe Size
Max. † * Working Pressure kPa psi
Max. * End Load kN Lbs.
Max. End Gap mm Inches
Approx. Weight kg Lbs.
Nominal mm Inches
O.D. mm Inches
A
B
C
Degrees Per Coupling
mm/m
Inches/Ft
75.0
76.1
1.4
80
88.9
2068
12.8
1.6
119.0
163.0
48.0
41.9
1.8
100
114.3
2068
21.2
3.2
165.0
205.0
52.0
55.9
2.7
125
139.7
2068
31.7
3.2
189.0
253.0
52.0
45.7
4.9
125
141.3
2068
32.4
3.2
189.0
253.0
52.0
45.4
4.9
150
165.1
2068
44.3
3.2
213.0
278.0
52.0
39.0
5.8
150
168.3
2068
46.0
3.2
216.0
281.0
52.0
37.8
5.8
200
219.1
2068
Refer to back cover for country-specific customer care numbers.
25
78.0
3.2
Dimensions - mm Inches
278.0
356.0
62.0
Deflection
40
48.3
60.3
2068
3.8
1.6
118.0
47.0
66.4
29.1
1.0
50
2068
5.9
1.6
86.0
121.0
48.0
61.5
1.1
65
73.0
2068
8.7
1.6
92.0
150.0
48.0
43.7
1.4
65
2068
9.4
1.6
92.0
150.0
48.0
41.9
9.3
† Pressure ratings listed are cold water pressure or maximum working pressure within the service temperature range of the gasket used in the coupling.
* Maximum working pressures and end loads listed are total of internal and external pressures and loads based on Schedule 40 steel pipe grooved in accordance with Standard Cut Groove or Roll Groove Specifications.
For information on larger sizes, contact GRINNELL Mechanical Products.
See page 17 for general notes, and see pages 140 - 146 for gasket information.
Grooved CouplinGs