Table 3. Condenser water piping connection sizes
CDSZ
Nominal Pipe Size
2 pass
Inch
mm
050
8
219.1
080
10
273.0
142
12
323.9
210
14
355.6
250
14
355.6
Notes:
CDSZ =Condenser Shell Size; S = Short Shell, L = Long
Shell, E = Extended Shell
Figure 11. Typical grooved pipe connection
Grooved Pipe Coupling
A customer-supplied, standard flexible grooved pipe
coupling (Victaulic Style 77 or equivalent) should be
used to complete the Victaulic connection for both 150
psig or 1035 kPa and 300 psig or 2068 kPa water boxes.
Table 4. Water piping connection components
Customer Piping Connec-
tion
Unit Model
Unit Con-
nection Type
Victaulic™
Flanged
CVHE and
CVHG
Flanged
(Condenser
050 150 psig
and 1035 kPa
non-marine
only)
Customer
provided
victaulic
adapter
No Adapter
Required
CVHE, CVHF,
and CVHG
Victaulic (All
others)
Customer
provided
Victaulic
Coupling
Customer
provided
victaulic
adapter
When a flexible coupling such as this is installed at the
water box connections, other flexible piping connectors
(i.e., braided-steel, elastomeric arch, etc.) are usually not
required to attenuate vibration and/ or prevent stress on
the connections.
Figure 12. Customer piping connection types
Flanged
Victaulic
Water Box
Flange
Water Box
Style 77 Flexible
Customer Provided
Customer
Refer to the coupling manufacturer’s guidelines for spe-
cific information concerning proper piping system de-
sign and construction methods for grooved water piping
systems.
Note:
Flexible coupling gaskets require proper lubri-
cation before installation to provide a good seal.
Refer to the coupling manufacturer’s guidelines
for proper lubricant type and application.
Bolt-Tightening Sequence for Wa-
ter Piping Connections
A bolt-tightening sequence for flanges with flat gaskets
or O-rings is described in the following tables and fig-
ures. Remember that improperly tightened flanges may
leak.
Note:
Before tightening any of the bolts, align the flang-
es. Flange bolt torque requirements are given
below.
Table 5. Flange bolt torque recommendations for
O-ring and flat-gasket piping connections
Bolt Size
Gasket Type
Inch
mm
O-Ring
Flat
3/8”
9.5
25 (34)
12-18 (16-24)
1/2”
13
70 (95)
33-50 (45-68)
5/8”
16
150 (203)
70-90 (95-122)
3/4”
19
250 (339)
105-155 (142-210)
Note:
Torques provided in ft/lb (Newton/metres). Bolt size is
determined by the diameter of bolt shank.
Flanges with 4, 8 or 12 Bolts
Tighten all bolts to a snug tightness, following the ap-
propriate numerical sequence for the flange. Repeat this
sequence to apply the final torque to each bolt.
1
1
1
3
3
3
4
4
4
10
11
9
5
5
7
7
8
8
12
2
2
2
6
6
4 bolt flange
8 bolt flange
12 bolt flange
Flanges with 16, 20 or 24 Bolts
Following the appropriate numbered sequence, tighten
only the first half of the total number of bolts to a snug
tightness. Next, sequentially tighten the remaining half
RELEASED 10/Mar/2020 06:59:20 GMT
