MSA 81857 Instructions Manual
part no.
81857
instructions
WARNINGS
THESE INSTRUCTIONS MUST BE CAREFULLY READ BY ALL PERSONS WHO HAVE
OR WILL HAVE THE RESPONSIBILITY FOR USING OR SERVICING THE PRODUCT.
If this unit is used with an oil lubricated compressor, high-temperature alarms,
Carbon Monoxide Monitors and additional filtering systems may be required per
29 CFR 1910.134.
Air entering this filter must be CGA Grade D as per Pamphlet
G-7.1 ANSI 286.1-1973.
This Air-Line Filter is used as a final particulate filter and nuisance odor sorbent
for breathing air entering NIOSH - certified Air Line Respirators.
Manufactured by
MINE SAFETY APPLIANCES COMPANY
PITTSBURGH, PENNSYLVANIA, U.S.A., 15230
i 888 iii Rev 2
484816
DESCRIPTION:
The MSA AIR-LINE FILTER provides high-efficiency filtration of compressed
air for breathing purposes...minimum 99% removal of 0.3 micron and larger
diameter particulate, including dusts, mists, fumes, smokes and low concentrations of organic vapors.
Figure 2
Figure 1
SYSTEM PRESSURE
Maximum operating pressure 125 psig.
SYSTEM TEMPERATURE
Maximum operating temperature 250” F
INLET AND OUTLET FITTINGS
one-half inch NPT Female both ends.
Size: 6” x 7 112” high
Weight: 3 pounds
FLOW CAPACITY
Designed for 25 scfm maximum volume at which the initial
pressure drop is 1 .O psig for an assembly with two chemical
cartridges and a particulate filter.
EFFICIENCY
99% of .3 Micron when tested according to 30 CFR Part 11
Subpart K
USES
Use with constant flow and pressure demand Air-Line respirators.
-0G NUMBERS
\ir-Line Filter, complete with one particulate filter and
two organic vapor cartridges.. .81857
Filter Replacement Kit ( includes 8 items, pictured with l * )
Part No. 484923
%-
BoU;;;j ‘dd)
Head-86602
“0’‘-ring-62726* *
Gasket, Carfridge-
89775 Jc Jr
’ &&;:C;rtridge-
L 150-cc Organic Vapor
--\
Cartridge-48727JC *
- Gasket, Cartridge89774 Jc *
CATAI
MSA F
Particulate Filter79030* *
Retainer, Cartridge-
91374**
nn A InITrkI A LIP.C
,“,HllY I CIYHlYLsL
Replace filter cartridge and organic vapor cartridges every 1000
hours of use,or sooner if pressure drop increases or odor is detected.
Bowl-486515
0 ,Inci”des main “aiv-615191
-Washer (4 req’dd) 63832
4. Remove and replace O-ring seal in head.
Nut (4 req’dj 632391
5. Replace new cartridge, filter, and gaskets in reverse order
Procedure:
Refer to Figure #2 in next column.
1, Remove 4 bolts,washers,and nuts in housing and remove bowl.
2. Unscrew cartridge retainer,turning counterclockwise.
3. Take note of the 3 gaskets and position of cartridge in
system as they are removed.
of removal.
6. Replace bowl and 4 nuts. washers and bolts.
7. Check for leaks after recharging with air.
Do NOT
exceed maximum operating pressure of 125 psig.
I- -- 0 Dratn Valve-61519
“NOTE: Two of these cartridges are used in series with the
particulate filter.
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