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82
FIGURE 7800 CHECK VALVE
Nominal
Size
O.D.
Nominal Dimensions
Approx.
Wt. Ea.
A
B
C
D
E
F
G
In./DN(mm)
In./mm In./mm In./mm In./mm In./mm In./mm In./mm In./mm Lbs./Kg.
2
2.375 6
3
/
4
2
3
/
8
1
7
/
16
1
3
/
4
4
1
/
2
3
3
/
16
4
3
/
8
7.5
50
60.3
171
60
36
44
114
81
111
3.4
2
1
/
2
2.875 7
1
/
4
2
7
/
16
1
9
/
16
1
3
/
4
3
13
/
16
3
5
/
8
4
1
/
2
10.5
65
73.0
184
61
39
44
96
92
114
4.8
3
3.500 7
3
/
4
2
5
/
8
2
11
3
/
16
4
1
/
16
3
11
/
16
4
15
/
16
11.5
80
88.9
197
67
51
46
103
93
125
5.2
4
4.500 8
1
/
8
3
1
/
8
2
1
/
4
2
1
/
2
5
1
/
16
4
1
/
4
6
13.5
100
114.3
206
79
57
64
128
108
152
6.1
5
5.563 9
3
/
4
3
1
/
2
2
3
/
4
2
7
/
16
5
13
/
16
4
5
/
8
6
3
/
4
19.0
125
141.3
248
89
70
61
147
117
171
8.6
6
6.625 12
3
/
4
4
1
/
4
3
5
/
16
3
1
/
8
6
1
/
4
6
3
/
4
8
1
/
2
33.5
150
168.3
324
108
84
79
159
171
216
15.2
8
8.625 14
3
/
8
5
1
/
16
3
15
/
16
4
5
15
/
16
8
10
1
/
4
59.0
200
219.1
365
128
100
102
150
203
260
26.8
10
10.750 18
6
5
/
16
4
15
/
16
4
9
/
16
6
7
/
8
9
3
/
16
12
11
/
16
130.0
250
273.1
457
160
125
115
175
233
322
59.0
12
12.750 21
7
5
/
16
6
5
1
/
16
7
1
/
4
10
3
/
8
14
3
/
4
183.0
300
323.9
533
185
152
128
184
264
375
83.0
SERIES 7800
Check Valves
For use in Grooved-End Piping Systems
* Contact a Gruvlok representative for more information.
MATERIAL SPECIFICATIONS
G
Hinge Pin Plug
1
/
2
" NPT
1
/
2
"
NPT
Lifting Eyebolt
(10" and 12"
Valves Only)
A
F
B
C
E
D
SERIES 7800 CHECK VALVES (ORDERING INFORMATION)
Sample Part Number
4" 7811––>
4" 78
1
1
X
Size
Series Clapper Facing Material
Body Finish
Special Confguration
2" - 12" 78 - 7800
1
- EPDM (Std)
1
- Painted (Std)
1
- Stainless Steel Clapper sizes (6" - 12")
2
- Nitrile (Std)
2
- Ni Electroplated (Optional)
2
- Other*
3
- Special
3
- Zn Electroplated (Optional)
4
- Special
GL-2.10