HIGH PRESSURE AIR FILTER DESCRIPTION AND MAINTENANCE INSTRUCTIONS

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP82-00038R002000180002-0
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 22
• Document Creation Date: December 22, 2016
• Document Release Date: April 4, 2011
• Sequence Number: 2
• Content Type: REPORT

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11. MAINTEK
A. Perform:1626k=
-
B. Starting
Operation.
C. Troubles- an
D. Tranapprt,
c)hargilitg Of
3 . Instruments
ylresot
5
6
6
7
7
9
9
10
12
12
II_ INSTRUCTIONS POR
ASSEMBLING
A. Dismantling* 0
Re-essembl
Sketches
13
13
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CCr'r=T
a
. 40 g
? 7 layers
3 lit.(2.1
? 3 lit.(1.5
6 layers
eather . 1 layer
_ .
eight- of ?barged, filter. appr.92 kg
10. Overall dimensions:
max.diameter 225 mr,
height
B. General Desori tion
The high pressure air filter (see Fig.1) consists
ICS)
(7), cartridge (8) and two covers: outside cover (1) ont
side cover (2).
Installed between the covers is gasket (16) mad,.
dia. copper wire. Tightening the covers with bolts
the inside air pressure will compress the gasket there:,
ensuring gastightness of the filter.
The filtering cartridge is installeA-In the housing up,7,n
aluminium gasket (18); twenty-four screws seoure the cartria_
by its flange to the neck. This connection must be absolutely
gastight, otherwise dirty air may pass past the filter.
Fitted in the bottom of the housing cylinder are three
special welded pads (20) into whioh thrust screws (19) and
stops (22) are sorewed to secure the lower part of the fAltnr-
ing cartridge. To eliminate air leaks through the welded
pads, the latter are provided with copper gaskets (21) com-
pressed with special bushes (23) and nuts (24).
The impure air is suppl,ied'ttbthefilter through union (25)
welded to the filter houstagAtottom. Installed inthe union
are seven brass thrott7teate#::(0)-i-(27)14t4 I = dia.
holes which are cotPreasedbyleorewbush-(28). The throttle
plates limit - the air supply to the filter to:: comply to the
-
specified air const;MirtiOni proper opera-
.
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j!le cartridge charge.
of liquid entering the filter along with impure
tudily. the cones of water separator (14) screwed intc
bottom of ;the housing.
_
e-air. is cleared of solids and oil mist by passing
ough a layer .of cotton (4) packed In a container relde
-to-the soreens through cardboard (33) and glass cloth
held-between-two screens. The water vapour present ln
air istrapped- in a layer of silica jel (5); then the
dined alr passes through a layer of carbon (.9),
vapour to be caught therein.
The second layer of silica gel (5) serves to entra7
remainder of water vapours.
The layers of silica gel and activated carbon ar,,
by screens (6).
After it has been cleaned of oil and water
air passes through a layer of cotton (4) and a pack
6
ing of one layer of glass cloth (31), five layers
(30) and one layer of chamois leather (29), wh4ch
the air from carrying away particles of the filter ch=
other foreign matter.
Welded to the bottom of the housing is boss
neat the blowing off pipe line.
To secure the filter to the f6Undation plate/ tvic, .7."
(17) are welded to the cylindrical part of the Itcusin
the filter rests on four dampers of ACC-25
zis, ?
The upper part of the filter housing is protected
by a film of vinyl plastic10.3 mm thick, fastened to
and pipe line with wire.
C. Description of Main Units
(a) Ellis=1_11ssupis
The filter housing (see Fig.2) is of three--4--
struotion. It consists of neck (1), cylindrical
and bottom (4).
The stainless steel neck is threaded to
cover and has twenty-four tapped holes for the
the filtering cartridge. .The rest of the hcin Tar
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50X
-:ADJ.ir;e4e special weldedads (-'
of the housing.
a threaded socket to
underneath are union (5,; to
---
inside (up to the me
The filter co
-
inner cover (1
The outer cover 'TIa
drical surface 18lairisidi
neck. The cover
into the holes of
The stainless s
union (5) to corm
(2) packs the join
outer cover (3,
steel; its outer cyl-
er!wed into the housing
or bolta (4) thr.eaded
ovided with welded
ne. Copper rinr
housing wall.
(se
Cartridge bo
(7) also made of: s
of the cylinder.
cover (1) whereiii:
(5),five
leather (3) is.
In place
The 00170Xt,,
ed to the . up
(9) separat
gauze (27) is laid
_
cheked-with silica
-bailer. Flange
-
e-upper part
t cartridge
,of glass cloth
chamois
and hold tight
by screws
stainless steel
stec''
am- e filtering
underneath to protect the
gel-grains.
Twin brass screens (26), made of 1
between the layers of the filte_rirp.
activated carbon) and sezurcd
Flaes cloth (11) 13
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l????
charge. A
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?
screen :iaea
-
brass gauzes
gauzes are soldere
'ed 111th:charge particles',
.ig1014Ledm.ext to the charge= The
-6 _screens.
The lower separating screen consists of
be which to layers of cardboard (15),
cloth (14) and rAber gasket (16), 2 nan thick, are fitted.
The diameter of the gasket Is 3 to 4 mm larger than the
meter of the screens.
When the screens-are placed in position,the prctrin
edges of the gasket bend to form a collar which prevnt,7: tha
air from passing along the cartridge walls past the
two screens
one layer of
k,22
Lass
4 -
?
The cotton is packed Into a casing'weided to
ccreen. The casing also serves as guide
pre-compressed spring maintains compact packing cf
Placed on the spring is screen (13) which
cotton from falling out of the casin;z.
nr
screws when compressing the sr_,rinE.
-oval of the screens from the cartrio:ge,
z.pecial eyes (30).
The lower part of the cartridge cylIrr
ine and outside. Thrust rnf; with
fcr cc7]pressing the spring is screwed
used during transportation of -
During storage and tran37ortt'on
should be kept in a closed
threaded hole of the cartriclge co7ere
installed In the filter, the
stored in the S.T.A. box.
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Ca
7 b
t?-? ? ? ."!
".
4 .; ?
_
17_7.
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MA.INTENANC3 INSTRUCTIONS
ir e re nts
1. The air
om the high pressure air mainto be
cleaned in the filter, type 414BA72 2 should first
through -thewasoc.2.:Sestarator, and after the filter,
through the laiffilPitralatirkg-NratIve.
The. valve .maintains the pressure in the filter (160 to 2,:C.
kgf/Om) and air flow throughthe filtering elements within
the limits specified which ensures thorough 'purification
the compressed air. Scheniati.o connections of the filter to
the system are shown in.7ig.71.-
2. The filter should_ be installed vertically. It can be
Inclined up to 150 only inthe direction of the hole for ccn-
necting the blowing off pipe line. '
3. The air is supplied to the filter from underneath.
4. The number of operating hours of the filter should be
registered accurately and in due time .in the OBB2-2 7ilter
Sa-,-vicP List.
5. The cartridge fitted in the filter installed on boar7:1
ship ml;st be replaced after a total .of 40 hours of operation
?????
ft.. .6
90 days after it is plaoed in the filter.
B. Starting andMaintenance
during Operation
To supply filtered air to the consumers, proceed as follcwc
(see Fig.7);
1. Check to see that valves:(1),(6) and (7) are closed.
2. Slightly open.valve (1) an& sloWly raise the air pressure
In the filter up to 20 ketam2,
3. Open filter blow-off valve (7) and blow off the filter
for 5 to 20 seconds, after Which close valve (7).
4. Further rise in pressure, up to 160 kgficm2,should nisn
be reached slowly; See that the difference of pressure
pressure gauge (2). mounted before the filter and pressur
gauge (4) mounted after the filter does not exceed 151-7F7-:y
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5*-Ifthe
-
kgficm2,-s.
connect to fill any
with the description _ariti issialitendnoe
pressure air system.
Air pressure before the filter- i
kgfiom2 by opening the corresponding
sure air manifold.
6. On completion of operation close valves (2) and (6).
7. Open blow-off valve (7) and release the air from the
filter, after which close valve (7). Fumber of oreratin;7, hours
chould be entered in the (DBB-2 Filter Service List.
CIAlleed excess str
bottles in accordance
instructions for the hi
maintained st 160 to 200
valve in the high-pres-
C. Troubles and Their Elimination
Item
C.
Trouble
Cause
Remedy
1 2
3
1 Air leaks through
oover -to -housing
connection
(a) Skew gasket
(b) Uneven tight-
ening of
bolts
c) Gasket 4 r2:
not
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(a)
Loosen "zol-ts;
remove
align t1:,--;
cover, -
4r.sta'7 th-
cover an:11
tighter;
boltz
to: e
44
requir,:-.:
_
- 4
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over - bolts (d) Tighten the
e - not bolts
tightened I
properly
1
110
2 Air leaks through
union connections
k ? r
(a) Improper
tightening
of blind
nut;
(b) the gasket
does not
provide for
proper tight-
ness.
-ices rot
through
filter
Throttle
plates
fouled
?-?
(a) Tighten the
nut;
(b) replace
gasket
Disconnect the
union cornectio:-].,
remove and clean
the throttle
plates
r leaks
..7.-01;gh welded
7ad3 of the
hc:uzing
(a) Slack tight- (a) Tighten the
ening of nuts;
nuts;
(b) gaskets do (b) replace the
not provide gaskets
for proper
tightness.
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-122Latiltam,
-cial airt10.7
In a dry room.
During transportation
a box with rubber dampers.
The case with cartridge should be protected
impacts which, may lead to dents, notchessetc. on 144,1
al surface, which may reduce the tightness or
charge will lose its efficiency through abaorb!nE
On board the ship spare cartridges packed
stored in or without boxes. In the 'latter oast!
be secured to four spring dampers of AKHO-4
,
It is strictly forbidden to employ cartrldez,
with cartr
have been broken off, cartridges whose ca.sta
tight and/or bear traces of impacts.
E. Instruments
These include pressure gauges MTK I00Ex4U
cf accuracy 1.5.
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AND
eoeure in the system. In the
1. Rea
blow the
air through the blow
Oosted?as follows:
ilm from the filter neck,
air and loosen the nut of the
oover unisar oonn.so,
2. 5laoker17-:
3. Unsorew the
gasket as an ent
4. Screw out the
flange.
5. Unscrew the three
imside covers with round -:,opper
am the filter housing.
four screws from the cartrige
special bushes and
E. By applying1-1. sp-aotal'acrisw?driver
box unscrew the look:sorP
7. Give the thus
R. Screw the plug
available in the S.?.
9. Remove the oartri
from the welded pads, remove the
available in the S.-
4.-turns back,
oartridge cover (the plug is
the aluminium gasket.
-
ezfilter housing and take off
Prior to ins,
follows:
1. Examine
of the seal:
the air.-
. _
recess,.
proceed as
Athe presence
'affeoted
er-bousing
or
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24
er, install the
,5 press Ing :::::111= thrust screws
6. Screw lock dorewt