EATON HEVC 5005
Installation, Operation and Maintenance Manual E-CLCL-CC002-E2
May 2017
11
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.
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.
1
3
5
6
7
4
8
12
13
9
11
2
10
Pressure gauge
included
Air receiver tank
5-125 PSI
34-862 kPa
40 micron
Customer's
Air supply
See detail
For mounting
Dimensions
Free flow
Direction
Free flow
Direction
Figure 8
Dual wide
Pipe size
Part number
Drawing number
Standard
28
1 1/4"
108705
LA-11705
51 to 66
1 1/2"
108708
LA-11708
76 (1600 & 2000)
2"
108709
LA-11709
Premium
28
1 1/4"
108605
LA-11605
51 to 66
1 1/2"
108608
LA-11608
76 (1600 & 2000)
2"
108609
LA-11609
