COMPRESSED AIR AND GAS FILTERS - PSB Industries Inc
Transcript of COMPRESSED AIR AND GAS FILTERS - PSB Industries Inc
COMPRESSED
AIR AND GAS
FILTERS
ISO 9001 CERTIFIED
COMPRESSED AIR AND GASSYSTEM CONTAMINANTS
HOW CONTAMINANTSDAMAGE SYSTEMS
Solid ParticulateSolid particulate contaminants also cause damage to an air
system, such as: eroding internal parts of air tools, motors andother air operated devices; preventing valves from seatingproperly, thereby causing leakage; contaminating products andprocesses; plugging orifices or small tubing in instrumenta-tion; and they combine with liquid, oil and water to form a thicksludge that plugs even large orifices and small piping.
Direct Interception captures particles in the 0.3 to 1.0µmrange. The particle is collected when it passes within 1/2 itsdiameter of a fiber’s surface. The interception effectiveness ofa filter media is primarily a function of pore structure. Thesmaller the pores, the greater the effectiveness of the media tointercept particles.
Inertial Impaction collects particles 1.0µm and larger indiameter. Due to their relatively large mass and inertia, theseparticles tend to remain on their original course thereby con-tacting and being captured on the fiber’s surface.
Gravitational Settling is most effective with particleslarger than 10µm and low air velocities.
Figure 2: The Coalescing Process
Figure 1: Filtration Mechanisms
WaterAir systems contain water contaminants in liquid, aerosol
and vapor form. These contaminants contribute to corrosion ofsteel pipes and pressure vessels. In liquid and aerosol formwater causes erosion of pipes, fittings and in-line equipment.Both corrosion and erosion produce particulate contaminants,such as pipe scale and wear particles.
OilOil contaminants can exist in liquid, aerosol and vapor
form causing damage similar to the damage caused by water.Oil can also break down under heat and pressure producingacids, varnishes and other corrosive or sticky contaminants.The acids will corrode air system components such as instru-mentation, valves and air tools. The varnishes coat surfacescausing a variety of problems: valves stick; air tools and airoperated devices operate sluggishly or not at all; they reducedesiccant capacity until minimum performance requirementsare not met; they contaminate products and processes; and theycontaminate air for breathing applications.
Solid particles are captured and retained in the filtermedia. Liquid aerosols are captured by the media and removedfrom the air stream via the process of coalescing. Coalescing,by definition, means "to grow or come together into one." It isa continuous process by which small aerosols come in contactwith the fibers in the filter media and begin to collect. Thecollected aerosols travel along the fibers and combine to formliquids. This process continues until the liquids emerge on thedownstream surface of the media as droplets. See Figure 2.These droplets are gravitationally drained to and removedfrom the sump in the bottom of the coalescing filter housing.
HOW CONTAMINANTS GETINTO SYSTEMS
Air entering a compressor carries a variety of contaminantsincluding water, oil and solid particulate. Lubricated compres-sors add oil aerosols and vapors and all compressors add solidparticulates (wear particles from the compressor itself). Waterand hydrocarbon vapors condense into aerosols and liquidswhen compressed and cooled downstream. The air flow alsocauses erosion of piping, fittings and inline equipment whichwill add to the solid particulate contamination.
The removal of a solid or liquid contaminant from the airstream occurs via one of four filtration mechanisms: diffusion,direct interception, inertial impaction and gravitational set-tling. See Figure 1.
Diffusion is most effective when particles are less than0.3µm* in diameter. They exhibit a random movement calledBrownian motion which is independent of the air flow. Thisrandom movement causes the particles to contact and collecton the media fiber’s surface.
*1µm = 1 micron = 0.00003937 inches.
HOW TO REMOVECONTAMINANTS
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GENERAL AIR FILTERSGeneral Air’s Filter Media is a precision matrix of syn-
thetic microfibers designed for maximium efficiency and dirtholding capacity while minimizing pressure drop. Mediasutilize all four of the filtration mechanisms discussed earlier.See Figure 3.
The pore size and structure of a media and, therefore, theefficiency of that media is a function of the relative surface area(fiber surface area per unit volume). Relative surface area is afunction of the median fiber diameter and fiber packing den-sity. Therefore, combining a larger relative surface area witha smaller pore size produces a higher efficiency. See Figure 4.
In manufacturing the General Air filter media, the properratio of various fiber diameters are combined to produce thedesired pore size, media thickness and void volume. The mediais designed and manufactured to provide a gradient densitymatrix of microfibers with a “tapered” pore structure. Theresult is a pore structure that starts coarser and gets finer makingit possible for true depth loading of contaminants into themedia. This produces higher dirt holding capacities.
The microfiber matrix is secured into a fixed-pore configu-ration by the introduction of a binder which adheres adjoiningfibers together within the media. This fixed-pore configurationgives the media structural stability and ensures that capturedsolid particulates are not released back into the air/gas streambecause of high differential pressure, flow surges, vibration orpressure surges. This is a common occurrence with unbondedor loosely bonded media.
General Air media is made from high-quality Borosilicateglass microfibers. The smaller cartridges (all inline housings)are formed into a seamless tubular configuration by a propri-etary process. The larger cartridges (X300 housing and above)have cellulose added to the mix to provide increased structuralintegrity. This allows the media to be pleated, which increasesthe surface area resulting in a considerably extended cartridgeuseful life. All General Air medias are highly porous with 90%to 95% void volume available to hold contaminants. Preciselycontrolled manufacturing conditions and media formulationsensure reliable performance and exceptional quality in allGeneral Air media.
Figure 3: Scanning electron micrograph of General AirMicrofiber Filter Media (500x magnification)
Figure 4: Variation in permeability and dirt capacity as afunction of fiber diameter.
Applications:• Final filter to remove hydrocarbon vapors.• Final filter to remove offensive odors.
Applications:• Afterfilter with a regenerative dryer.• Prefilter with a refrigerated dryer.• Prefilter to a coalescing filter with heavy liquid, aerosol
or particulate loadings.
Rating:
Rating:• 0.9µm Absolute.
• Oil & hydrocarbon vapors down to 0.001 ppm.
FILTER MEDIA
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• Prefilter with a regenerative dryer.• Prefilter for air tools, valves and other air-operated devices.• Prefilter for sophisticated instrumentation, analyzers, etc.• Afterfilter with a refrigerated dryer.
Applications:
• 99.999+% Overall oil removal efficiency (includingsynthetic lubricants).
• 99.97% DOP efficiency.• 0.3 µm Absolute particulate and aerosol removal.
Ratings:COALESCING FILTER
STANDARD CARTRIDGERATINGS & APPLICATIONS
PARTICULATE FILTER
ODORGARD™ FILTER(Activated Carbon Filter)
GENERAL AIRFILTER SELECTION
FEATURE/BENEFITANALYSIS
General Air filters are designed and built for optimumperformance incorporating the following features and benefits:
Selecting the proper filter for a specific application is asimple process detailed in Steps 1 through 6 below. Caution:Do not select a filter based on installation pipe size and/orfilter connection size.
Step 1 - Select the type of General Air filter required forthe application (coalescer, odorgard or particulateand standard or inline).
Step 2 - Determine the flow (scfm) and pressure (psig) atthe point in the system where the filter is to beinstalled.
Step 3 - Find the flow rate chart for the filter type selected.Locate the column for the system pressure. Readdown that column until the volume equals orexceeds the system needs. Follow that row allthe way to the left to determine the model numberof the filter required for the application.
Step 4 - Technical data for filters is supplied ondimensional charts. Locate the General Airmodel number and read the information in thatrow.
Step 5 - Select any accessories that are needed tocomplete the system.
• All coalescing filters must have drainvalves. Most installations should haveautomatic drain valves. They can be floattype, motor operated ball valve withelectronic timer or solid state timer solenoidtype.
• All filter installations benefit from a pressuredifferential indicator. This indicates theoptimum time to replace filter elements.
Step 6 - Review the system for delicate downlineinstrumentation or equipment that would benefitfrom point-of-use filters. This extra protectioncould prevent damage to an expensive piece ofequipment.
Reliable Design Ensures Peace Of Mind.• Large relative surface area.• Small pore size captures smaller particles.• Media’s fixed pore configuration maintains its rating even
under adverse conditions.• Resin binder prevents contamination by the media itself,
known as media migration.• A non-wicking drain layer on coalescing elements prevents
re-entrainment of liquids.• Permanent urethane end caps prevent leakage around the
element.
Fewer Changeouts Give Cost Savings.• Highly porous media with 90% - 95% void volume.• Tapered pore structure allows true depth loading capturing
3 times more particulates than surface type filters.• Pleated media in all General Air filters increases surface
area by 4 - 6 times (X300 Model and above).• Coalescing elements have built-in pleated prefilters to remove
particulate that would shorten the element's life (X300Model and above).
Low Pressure Drop (Wet or Dry) ResultsIn Lower Compressor Operating Cost.• Small median fiber diameter.• 90% - 95% void volume.
Quality Construction Gives ReliablePerformance Even Under AdverseOperating Conditions.• Media’s fixed pore configuration ensures that captured solid
particulates are retained even with flow or pressure surges,vibration or high differential pressure.
• Thru-bolt construction ensures cartridge integrity. Manyfilters rely on sealants and adhesives which can fail whenexposed to shock, vibration or pressure surges.
• Cartridges are constructed with support structures that canhandle a 25 psid reverse flow through the cartridge. Thisreverse flow occurs when there is a sudden loss of pressureupstream.
Filters Work Under A Wide Range OfOperating Conditions.• Elements are compatible with most air/gas streams and
contaminants.• Elements for high temperature or corrosive applications are
available on special order.• Elements and housings for custom filtration applications are
available on special order.
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60 70 80 90 100 110 120 130 140 150 200 250 300Coalescing
FiltersOdorgard
Filters
C 75 O 75 P 75 303 322 341 358 375 391 406 421 436 449 513 570 621C 150 O 150 P 150 605 644 681 717 750 782 813 842 871 899 1026 1139 1242C 225 O 225 P 225 908 967 1022 1075 1125 1173 1219 1264 1307 1348 1539 1709 1863C 375 O 375 P 375 1513 1611 1704 1791 1875 1955 2032 2106 2178 2247 2565 2848 3106C 450 O 450 P 450 1816 1933 2044 2150 2250 2346 2438 2527 2613 2696 3078 3418 3727C 750 O 750 P 750 3026 3222 3407 3583 3750 3910 4064 4212 4355 4494 5131 5697 6212C 1050 O 1050 P 1050 4237 4511 4770 5016 5250 5474 5689 5897 6097 6291 7183 7975 8696C 1500 O 1500 P 1500 6053 6445 6815 7166 7500 7820 8128 8424 8710 8987 10261 11393 12423C 2250 O 2250 P 2250 9079 9667 10222 10748 11250 11730 12191 12636 13065 13481 15392 17090 18635C 2775 O 2775 P 2775 11197 11923 12607 13256 13875 14467 15036 15584 16114 16626 18983 21078 22983
ParticulateFilters
Inline Coalescing, Odorgard and Particulate Filters:
ParticulateFilters
40 50 60 70 80 90 100 110 120 130 140 150 200 250 300
P 2 29 32 34 36 38 40 42 44 46 47 49 50 57 64 70P 5 57 62 67 71 75 79 83 87 90 93 96 99 114 126 137P 15 115 125 135 144 152 160 167 174 181 188 194 200 228 254 277P 30 288 313 337 358 379 398 417 435 452 468 484 500 571 633 691P 50 374 407 437 466 492 518 542 565 587 609 629 649 742 823 898PX 100 483 526 565 602 636 669 700 730 759 786 813 839 958 1063 1159PX 160 691 751 807 859 909 955 1000 1043 1084 1123 1161 1198 1368 1519 1656PX 200 1260 1371 1473 1568 1658 1744 1825 1903 1978 2050 2119 2187 2497 2772 3023PX 300 1547 1682 1808 1925 2035 2140 2240 2336 2427 2516 2601 2684 3065 3403 3710PX 400 2210 2403 2582 2750 2908 3057 3200 3337 3468 3594 3716 3835 4378 4861 5300PX 600 3487 3793 4075 4340 4589 4825 5050 5266 5473 5672 5865 6051 6909 7672 8365PX 800 4641 5047 5423 5775 6106 6420 6720 7007 7282 7548 7804 8053 9194 10209 11131PX 1400 7734 8412 9039 9624 10177 10701 11200 11678 12137 12580 13007 13421 15323 17014 18552PX 2200 12375 13459 14462 15399 16283 17121 17920 18685 19420 20128 20811 21474 24517 27223 29683PX 3000 18563 20188 21692 23099 24424 25682 26880 28027 29129 30191 31217 32210 36776 40834 44524PX 5000 29391 31965 34346 36573 38672 40662 42560 44377 122 47803 49427 51000 58229 64654 70497PX 8000 41766 45424 48808 51972 54955 57783 60480 63061 65541 67930 70239 72473 82746 91877 100179
40 50 60 70 80 90 100 110 120 130 140 150 200 250 300
C 2 O 2 17 19 20 21 23 24 25 26 27 28 29 30 34 38 41C 5 O 5 35 38 40 43 45 48 50 52 54 56 58 60 68 76 83C 15 O 15 69 75 81 86 91 96 100 104 108 112 116 120 137 152 166C 30 O 30 173 188 202 215 227 239 250 261 271 281 290 300 342 380 414C 50 O 50 224 244 262 279 295 311 325 339 352 365 377 389 445 494 538CX 100 OX 100 380 413 444 473 500 525 550 573 596 618 639 659 752 836 911CX 160 OX 160 518 563 605 644 681 717 750 782 813 842 871 899 1026 1139 1242CX 200 OX 200 760 826 888 945 1000 1051 1100 1147 1192 1236 1277 1318 1505 1671 1822CX 300 OX 300 967 1051 1130 1203 1272 1338 1400 1460 1517 1572 1626 1678 1915 2127 2319CX 400 OX 400 1381 1502 1614 1719 1817 1911 2000 2085 2167 2246 2323 2397 2736 3038 3313CX 600 OX 600 2182 2373 2550 2715 2871 3019 3160 3295 3424 3549 3670 3787 4323 4800 5234CX 800 OX 800 2900 3154 3389 3609 3816 4013 4200 4379 4551 4717 4878 5033 5746 6380 6957CX 1400 OX 1400 4834 5257 5649 6015 6361 6688 7000 7299 7586 7862 8129 8388 9577 10634 11595CX 2200 OX 2200 7734 8412 9039 9624 10177 10701 11200 11678 12137 12580 13007 13421 15323 17014 18552CX 3000 OX 3000 11602 12618 13558 14437 15265 16051 16800 17517 18206 18870 19511 20131 22985 25521 27828CX 5000 OX 5000 18369 19978 21466 22858 24170 25414 26600 27735 28826 29877 30892 31875 36393 40409 44060CX 8000 OX 8000 27071 29441 31635 33686 35619 37452 39200 40873 42480 44029 45525 46973 53632 59550 64931
CoalescingFilters
OdorgardFilters
Standard Coalescing and Odorgard Filters:
RECOMMENDED FLOW RATES (SCFM) FORFILTERS BASED ON PRESSURE
Standard Particulate Filters:OPERATING PRESSURES (PSIG)
OPERATING PRESSURES (PSIG)
OPERATING PRESSURES (PSIG)
2 5 15
NPT
NPT
NPT
30 50
X10
0
X16
0
X20
0
NPT
NPT
NPT
NPT
NPT1 1 1 2 2 3
6 9 11 24 30 34 40 41
3 3 3 5 5 6 6 7
1 1 1 1 2
2 2 3 3 4 4 5 6
2 6
1 1 1 1 1 1 1 1
7 14 20 25 31 28
300
300
300
300
300
300
300
300
225
225
225
225
225
225
150
150
3 3 5 14 19 22 32 25
1 2 1 2 1 2 1 2 1 2 1 2
1 2
1 2
1 21 2
1 21 2
1 2 1 21 21 2
1 81 81 81 8
1 81 81 8N
PT
NPT
NPT
NPT
NPT
NPT
NPT
NPT
1 2
1 47 87 8
3 8
3 81 4
1 41 4
9 329 32
3 163 1615 1627 3239 6439 64
29 3223 327 16 13 32
5 8
5 8 5 8
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6 979
24 30
3535 35
5 56
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1 1 17
1434 33 31
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320
332
520
535
800
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1015
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83 5 12 19 27
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1 2
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31
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8 85 8
16 201212
3 43 4
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7 8 7 8
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60 60 65 67 75 81 86
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Page 6
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MO
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8000
MO
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600
75 150
225
375
450
750
1050
1500
9
29
2439 45 45 49
34
31
8 8 124 18 18
1 2 3 5 6 10 14 20
16
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200
200
200
225
225
225
225
225
225
225
225
55 166
176
250
260
475
500
690
1 2 1 2
1 2
1 2
1 21 2
1 2
1 2
1 2 1 21 21 2
NPT
NPT
NPT
NPT
NPT
NPT
NPT
NPT
1 215 16
3 83 4
1 4 1 4
5 8 5 8
MO
DE
LN
O.
CO
NN
EC
TIO
NSI
ZE
/TY
PE
DIM
EN
SIO
NS
(IN
.)
AB
CD
EF
MA
X. C
ON
DS.
PRE
SS.
(PSI
G)
TE
MP.
(F)
WE
IGH
T(L
BS.
)
NO
.O
FE
LE
ME
NT
S
CO
AL
ESC
ING
PAR
TIC
UL
AT
EO
DO
RG
AR
DC
OA
LE
SCIN
GPA
RT
ICU
LA
TE
OD
OR
GA
RD
CO
AL
ESC
ING
PAR
TIC
UL
AT
EO
DO
RG
AR
DC
OA
LE
SCIN
GPA
RT
ICU
LA
TE
OD
OR
GA
RD
CO
AL
ESC
ING
PAR
TIC
UL
AT
EO
DO
RG
AR
DC
OA
LE
SCIN
GPA
RT
ICU
LA
TE
OD
OR
GA
RD
CO
AL
ESC
ING
PAR
TIC
UL
AT
EO
DO
RG
AR
DC
OA
LE
SCIN
GPA
RT
ICU
LA
TE
OD
OR
GA
RD
7463
5-39
7463
5-40
7463
5-50
7463
5-39
7463
5-40
7463
5-50
7463
5-39
7463
5-40
7463
5-50
7463
5-39
7463
5-40
7463
5-50
7463
5-39
7463
5-40
7463
5-50
7463
5-39
7463
5-40
7463
5-50
7463
5-39
7463
5-40
7463
5-50
7463
5-39
7463
5-40
7463
5-50
375
750
1,12
5
1,87
5
2,25
0
3,75
0
5,25
0
7,50
0
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
7720
3
7718
6
7712
6
7718
7
7718
8
7718
9
7712
8
7720
0
EL
EM
EN
T
TY
PEPA
RT
NO
.M
AX
. SC
FMD
ESC
RIP
TIO
N O
F C
ON
NE
CT
ION
INIT
IAL
PSI
D •
MA
X. C
ON
DS.
HO
USI
NG
PAR
T N
O.
INL
INE
A
SME
H
OU
SIN
G
DA
TA
INL
INE
A
SME
A
SSE
MB
LY
D
AT
A
"IN
" T
O "
OU
T"
1 8
2" N
PT
3" F
LG
.
4" F
LG
.
4" F
LG
.
6" F
LG
.
6" F
LG
.
8" F
LG
.
8" F
LG
.
24
24
2424202020
20
20 2012
3 4
3 4
3 4
31282819
26
11 1626
2618
39
3 8
2550
2775
10"
FLG
.
10"
FLG
.
54 54
40 40
34 34
30 30
33 33
1 2N
PT 1 2N
PT22
5
125
125
225
850
860
30 37
3 4 3 4
1 2 1 2
CO
AL
ESC
ING
PAR
TIC
UL
AT
EO
DO
RG
AR
DC
OA
LE
SCIN
GPA
RT
ICU
LA
TE
OD
OR
GA
RD
7463
5-39
7463
5-40
7463
5-50
7463
5-39
7463
5-40
7463
5-50
11,2
50
13,8
75
"IN
" T
O "
OU
T"
"IN
" T
O "
OU
T"
"IN
" T
O "
OU
T"
"IN
" T
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OU
T"
"IN
" T
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OU
T"
"IN
" T
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"IN
" T
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OU
T"
"IN
" T
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"IN
" T
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1.5
1.5
7720
1
7713
0
• 10
0 PS
IG
Page 7
2250
MA
TE
RIA
LS
SHE
LL
& N
OZ
ZL
ES
HE
AD
S
CA
RB
ON
STE
EL
CA
RB
ON
STE
EL
1. F
ilter
Mod
el N
umbe
rs X
300
thru
X80
00 a
re A
SME
sta
mpe
d (r
ated
as
appl
icab
le)
for
150
psig
max
imum
pre
ssur
e an
d 22
5O F
max
imum
tem
pera
ture
2. D
escr
iptio
n of
con
nect
ions
for
filt
er ty
pes
is a
s fo
llow
s:
Coa
lesc
ing
= F
low
fro
m in
side
to o
utsi
de o
f ca
rtri
dge
("A
" po
rt to
"B
" po
rt)
Part
icul
ate
= F
low
fro
m o
utsi
de to
insi
de o
f ca
rtri
dge
("B
" po
rt to
"A
" po
rt)
Odo
rgar
d =
Flo
w f
rom
out
side
to in
side
of
cart
ridg
e ("
B"
port
to "
A"
port
)
Con
nect
ions
on
Filte
r M
odel
Num
bers
. 75
thru
277
5 sh
ould
be
mad
e on
ly a
s in
dica
ted
on h
ousi
ng, i
.e. "
IN"
to "
OU
T"
rega
rdle
ss o
f el
emen
t typ
e.
3. I
nitia
l psi
d at
max
imum
con
ditio
ns f
or e
lem
ents
is 1
.5 p
sid
clea
n/dr
y, 2
.5 p
sid
wet
.
NO
TE
S:
Manufacturers of quality products since 1945
Your Contact Is:
PSB INDUSTRIES INC.General Air Division1202 West 12th StreetErie, PA 16501 USAPhone: 814-453-3651Toll Free: 800-829-1119Fax: 814-454-3492E-mail: [email protected]
Printed in U.S.A.Form No. 701-SBG, PDF-7/02