EATON
WSB11206 WCSB Tensioner / Brake with ORB Coolant Ports Installation, Operation and Maintenance Manual E-CLCL-II009-E
August 2015
11
Table 4
Coolant Supply Data
Min Flow Rate
Min Flow Rate
Min Flow Rate
Water Inlet and
Min Flow
GPM (dm
3
/min) GPM
(dm
3
/min) GPM
(dm
3
/min)
Thermal
Outlet Pipe Size
Rate
GPM
70% Water, 30%
60% Water, 40%
50% Water, 50%
Rating
(Minimum (dm
3
/min)
Ethylene Glycol
Ethylene Glycol
Ethylene Glycol
Model HP
(kW)
1
piping
I.D.)
100%
Water
2
by
vol.
3
by
vol.
4
by
vol.
5
124
270 (201)
SAE-12 (3/4")
27 (102)
32 (121)
35 (132)
40 (151)
224
540 (402)
SAE-12 (3/4")
54 (204)
64 (242)
70 (265)
80 (303)
324
810 (603)
SAE-12 (3/4")
81 (305)
96 (361)
105 (395)
120 (451)
424
1080 (805)
SAE-12 (3/4")
108 (406)
128 (481)
140 (526)
160 (602)
136
650 (485)
SAE-20 (1")
65 (246)
76 (288)
84 (318)
98 (371)
236
1300 (969)
SAE-20 (1")
130 (489)
152 (572)
168 (632)
196 (737)
336
1950 (1454)
SAE-20 (1")
195 (738)
228 (863)
253 (958)
294 (1113)
436
2600 (1937)
SAE-20 (1")
260 (978)
304 (1143)
336 (1263)
392 (1474)
148
1300 (969)
SAE-20 (1-1/4")
130 (489)
152 (572)
168 (632)
196 (737)
248
2600 (1937)
SAE-20 (1-1/4")
260 (978)
304 (1143)
336 (1263)
392 (1474)
348
3900 (2906)
SAE-20 (1-1/4")
390 (1467)
456 (1715)
504 (1895)
588 (2211)
448
5200 (3874)
SAE-20 (1-1/4")
520 (1956)
608 (2286)
672 (2526)
784 (2948)
1. Thermal rating based on a 70°F (21°C) water inlet temperature and a 50°F (28°C) temperature rise between inlet and outlet.
2. 10HP/GPM, (1.97kw/(dm³/min))
3. 8.55HP/GPM, (1.68kw/(dm³/min))
4. 7.74HP/GPM, (1.53kw/(dm³/min))
5. 6.63HP/GPM, (1.31kw/(dm³/min))
Note: Minimum Flow Rates listed above are to achieve thermal rating. Lower flow rates are acceptable provided that they satisfy peak thermal requirement
2.4.8
Use flexible connecting hose to each WCSB
tensioner / brake assembly coolant section to
allow axial travel of the pressure plate, reaction
plate, and end plate during WCSB tensioner / brake
assembly operation. Hose lengths running between
the manifold and the inlet or outlet ports should
be equal in length, if possible. Reductions in the
recommended line diameter should be avoided to
prevent excessive line pressures.
2.4.9 Avoid the use of sharp bends and elbows that will
restrict water flow. Loops and bends in the lines may
create air pockets, which substantially reduce the
flow of coolant and can contribute to overheating.
2.4.10 Coolant and coolant supply lines should be free
of foreign material (a 500 micron water filter is
recommended). In the event that contaminated water
is used as a coolant (not generally recommended),
use of a multistage filter / strainer may be desirable
to avoid the need for frequent cleaning of
fine mesh filters.
2.4.11 Figure 5 illustrates a typical closed loop liquid to liquid
coolant system. The heat exchanger and temperature
control would be replaced with a radiator, fan and
motor in a liquid to air system.
2.4.12 The coolant supply temperature at the inlet should be
100
o
F (38
o
C) or lower. The coolant outlet temperature
should not exceed the values given in Table 5.
However, in no event should there be more than
a 50
o
F (28
o
C) temperature rise between inlet and
outlet. See Table 5 for maximum allowable outlet
coolant temperature with various water / ethylene
glycol mixtures and other cooling media.
Table 5
Maximum Inlet & Outlet Coolant Temperature
Maximum
Maximum
Allowable
Maximum
Allowable
Coolant
Allowable
Water/ Ethylene
Coolant Inlet
Outlet
Coolant
Glycol Mixture
Temperature
Temperature
Temperature
% by volume
°F (°C)*
°F (°C)
Rise°F (°C)
100/0
100 (38)
150 (66)
50 (28)
70/30
115 (46)
165 (74)
50 (28)
60/40
115 (46)
165 (74)
50 (28)
50/50
120 (49)
170 (77)
50 (28)
* Provided that temperature rise is no greater than 50
0
F (28C)
WCSB tensioner / brake with ORB coolant ports
Summary of Contents for Airflex WSB11206
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