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HEVC 5005
2.7
Air control system
2.7.1
A typical air control system is shown on Figure 8.
Since operating characteristics vary from one
grinding mill to another, following are some general
guidelines for installing the air controls.
2.7.1.1 The air receiver tank must be located as close to the
clutch as possible (the tank should be located within
15 feet of the solenoid valve, and solenoid valve
should be within five feet from the rotorseal) for
consistent clutch response.
2.7.1.2 Use full size piping and valves consistent with the
rotorseal size and keep the number of elbows
to a minimum.
2.7.1.3 Use poppet-type solenoid valves. Spool valves are
not recommended.
Pressure gauge
included
1
3
Customer's
Air supply
40 micron
Dual wide
Standard
28
51 to 66
76 (1600 & 2000)
Premium
28
51 to 66
76 (1600 & 2000)
4
5
6
5-125 PSI
34-862 kPa
Air receiver tank
Free ow
See detail
Direction
For mounting
Dimensions
Pipe size
1 1/4"
1 1/2"
2"
1 1/4"
1 1/2"
2"
EATON HEVC 5005 Installation, Operation and Maintenance Manual E-CLCL-CC002-E2
2.7.1.4 An air line lubricator is not required for the clutch
element; however, if one is used, it must be a
nonadjustable, mist-type.
2.7.1.5 Make sure the flow control valve is installed with free
flow (indicated by an arrow on the valve body) away
from the HEVC (free flow to exhaust).
2.7.1.6 The final connection to the rotorseal MUST be made
with flexible hose and place no radial load upon the
rotorseal. Also, if the rotorseal is mounted onto the
end of a motor shaft, an insulating coupling must be
installed between the piping and the rotorseal.
Caution
Do not use rigid pipe at the connection to the
rotorseal. Rigid piping will result in excessive loads
on the rotorseal bearings, shortening life.
7
8
9
11
2
10
Figure 8
Part number
108705
108708
108709
108605
108608
108609
12
13
Free ow
Direction
Drawing number
LA-11705
LA-11708
LA-11709
LA-11605
LA-11608
LA-11609
11
May 2017
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