TM 10-4610-232-12
Table 2-7. Air Supply Controls and Indicators (Continued)
(Item numbers are keyed to Figure 2-8)
Item
Control/Indicator
Function
5
MANIFOLD BLEED
This valve is opened to bleed built up water from the
VALVE - V93
manifold. It is normally closed.
6
AIR PURGE (V18) BLOCK
This valve is opened to purge the media filter of water
VALVE - V91
during cold weather secured shutdown. This valve is
normally closed.
7
BACKWASH AIR (V22) BLOCK
This valve is closed to shut off the air supply to the
VALVE - V90
automatic backwash air supply valve (V22). This valve
is open for normal operation.
8
AIR BLANKET (V20) BLOCK
This valve is closed to shut off the air supply to the
VALVE - V89
air blanket valve (V20). It is normally open.
9
(NOT USED)
This valve is plugged and not used.
10
MEDIA FILTER FLUSH (V36)
This valve is closed to shut off the air supply to the
BLOCK VALVE - V85
automatic air-operated media filter flush valve (V36).
It is normally open.
11
MEDIA FILTER OUTLET (V35)
This valve is closed to shut off the air supply to the
BLOCK VALVE - V84
automatic air-operated media filter outlet valve (V35).
This valve is open for normal operation.
12
MEDIA FILTER BW OUTLET
This valve is closed to shut off the air supply to the
(V17) BLOCK VALVE - V83
automatic air-operated media filter backwash water
outlet valve (V17). This valve is open for normal operation.
13
MEDIA FILTER INLET (V16)
This valve is closed to shut off the air supply to the
BLOCK VALVE - V82
automatic air-operated media filter upper inlet valve (V16).
This valve is open for normal operation.
14
MEDIA FILTER BW INLET (V15)
This valve is closed to shut off the air supply to the
BLOCK VALVE - V81
automatic air-operated media filter backwash inlet
valve (V15).This valve is open during normal operation.
15
CLEAN/FLUSH OUTLET (V5)
This valve shuts off air to the clean/flush tank
BLOCK VALVE - V80
automatic air-operated valve (V5). This block valve is
normally open.
16
MANIFOLD BLEED
This valve is opened to bleed off air pressure for
VALVE - V87
maintenance and before transport. It is normally closed.
17
(DELETED)
18
(DELETED)
19
HIGH PRESSURE AIR AUTO
Normally open. Used as back-up to automatic valve if valve
BLOWDOWN BLOCK - V67
fails to shut-off tight.
20
AIR STORAGE VALVE - V72
Shuts off air from the reservoir tank.
21
AIR COMPRESSOR BLEED
Open this valve to bleed off air pressure and accumulated
VALVE
water for secured shutdown.
22
OUTLET FILTER VENT
Normally closed (turned fully clockwise when closed).
2-16 Change 12
