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couplings for grooved-end pipe
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38
NIPPLE
COUPLING
END ADAPTER
L
GRUVLOK
4'' FIG. 7000
GRUVLOK
4'' FIG. 7000
GRUVLOK
4'' FIG. 7000
GRUVLOK
4'' FIG. 7000
GRUVLOK
4'' FIG. 7000
FIG. 7240
Expansion Joints
The Gruvlok® Figure 7240 Expansion Joints
take advantage of the axial expansion
capabilities of the Gruvlok fexible
couplings to produce a reliable grooved
end expansion joint. The expansion joints
are comprised of the Gruvlok Figure 7000
or 7001 fexible couplings and precision
machined grooved end pipe nipples.
Ties are used to custom preset the expansion joints in the
expanded, compressed or intermediate position to provide for
the desired expansion and/or contraction compensation.
Installation is easy, simply follow the Gruvlok coupling
installation and assembly instructions to install the expansion
joint in the system and after installation is complete, remove
the ties.
The expansion joints can be used as fexible connectors,
however, they will not simultaneously provide for full axial
expansion and angular defection. Expansion joints require
pipe anchoring capable of restraining the maximum system
pressure end load.
The service conditions are the same as the service conditions
for coupling and gasket used in the expansions joint. Unless
otherwise requested, this product will contain a silicone
based lubricant. Refer to the Gruvlok catalog for coupling
performance capabilities and material specifcations. To order
please provide the order form on the page 208.
NOTE:
The Gruvlok Figure 7240 Expansion Joint is also available in stainless
steel for use in grooved copper systems.
NOTE:
Expansion joint shown with shipping support. Contact a Gruvlok®representative for proper installation support requirements.
FIGURE 7240 PERFORMANCE DATA (INCHES)
Nominal
Size
O.D.
Coupling
Figure
X
Y
Compressed
Length L
Expanded
Length L
Coupling Movement
Capability
Number of
Couplings
Total Movement
Capability
In./DN(mm)
In./mm
In./mm
In./mm
In./mm
In./mm
In./mm
In./mm
2
2.375
7000
3
1
/
2
5
1
/
2
30
31
1
/
4
1
/
8
10
1
1
/
4
50
60.3
89
125
762
794
3.2
31.8
2
1
/
2
2.875
7000
4
5
3
/
4
30
31
1
/
4
1
/
8
10
1
1
/
4
65
73.0
100
146
762
794
3.2
31.8
3
3.500
7000
4
5
/
8
6
3
/
4
30
31
1
/
4
1
/
8
10
1
1
/
4
80
88.9
117
171
762
794
3.2
31.8
4
4.500
7000
5
7
/
8
8
1
/
8
17
1
/
2
18
3
/
4
1
/
4
5
1
1
/
4
100
114.3
149
206
445
476
6.4
31.8
5
5.562
7000
7
9
5
/
8
19
20
1
/
4
1
/
4
5
1
1
/
4
125
141.3
178
244
483
514
6.4
31.8
6
6.625
7000
8
11
19
20
1
/
4
1
/
4
5
1
1
/
4
150
168.3
200
279
483
514
6.4
31.8
8
8.625
7000
10
3
/
8
13
1
/
4
22
1
/
2
23
3
/
4
1
/
4
5
1
1
/
4
200
219.0
264
337
572
603
6.4
31.8
10
10.750
7001
12
7
/
8
17
1
/
2
23
1
/
2
24
3
/
4
1
/
4
5
1
1
/
4
250
273.1
327
445
597
629
6.4
31.8
12
12.750
7001
15
19
1
/
2
23
1
/
2
24
3
/
4
1
/
4
5
1
1
/
4
300
323.9
381
495
597
629
6.4
31.8
X
Y
GL-2.10