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Deltech PBA-12 Instruction Manual

Made by: Deltech
Type: Instruction Manual
Category: Air Cleaner
Pages: 11
Size: 0.19 MB

 

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BREATHING AIR PURIFIER

Model:  PBA-12

F OR M N O.: 3227497    R EVI S I ON: 02/2012

R EAD AN D U N D E R STAN D TH I S MAN UAL PR I OR TO OPE RATI N G OR S E RVI CI N G TH I S PR OD U CT.

I N STR U CTI ON MAN UAL

 


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Contents

GENERAL SAFETY INFORMATION ...................................... 1
1.0 INSTALLATION ............................................................. 2
2.0  DESIGN LIMITATIONS ................................................... 2
3.0 OPERATION ................................................................. 3
4.0 MAINTENANCE ........................................................... 4
5.0  CARTRIDGE REPLACEMENT PROCEDURE ................... 5
6.0  GENERAL INFORMATION  ............................................ 6
PARTS LIST  ........................................................................ 6
WARRANTY

 


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1

GENERAL SAFETY INFORMATION

When properly installed and operated, the purifier is designed 

to purify ordinary compressed air to acceptable levels for 

supplied air breathing systems. Appropriate safety precautions 

must be observed to assure satisfactory service.
Consult factory for assistance and recommendation if purifier 

performance does not meet design specifications or when its 

intended application is questionable.

1.  LIMITATIONS ON USE OF SUPPLIED AIR RESPIRATORS

This equipment is for use with supplied air respirators. 

Supplied air respirators should not be used in a hostile 

environment (highly toxic or oxygen-deficient) which 

is immediately dangerous to life, or where the user 

cannot escape without the aid of a respirator. Self-

contained breathing apparatus should be used for these 

applications.

2.  COMPRESSOR INTAKE

This equipment is for use with ordinary compressed air. 

The compressor intake should be located to insure that 

the air supply source is not oxygen-deficient or subject to 

unusual or gross contamination.

3.  CARBON MONOXIDE DETECTION

This equipment is equipped with a humidity indicator 

which gives advance warning of the impending expiration 

of the catalyst used to eliminate carbon monoxide. This 

indicator is not a carbon monoxide detecting device. A 

compressor high temperature alarm or carbon monoxide 

alarm (or both) should be provided. If a compressor high 

temperature alarm only is used, frequent testing for 

carbon monoxide concentration should be conducted.

4.  LIMIT TO CARBON MONOXIDE REMOVAL 

This equipment is provided with a catalyst which can 

convert carbon monoxide to carbon dioxide. Its capacity 

to decrease the concentration of carbon monoxide is 

dependent on the air flow rate and inlet concentration 

of carbon monoxide. Although this catalyst is capable of 

eliminating very high concentrations of carbon monoxide 

(especially if of short term duration), carbon monoxide 

inlet  concentrations higher than 400 PPM v/v exceeds 

the intended design specifications. Conversion of 

concentrations higher than 400 PPM v/v will result in the 

formation of excessive levels of carbon dioxide, and will 

also cause an undesirably high air temperature rise.

5.  PRESSURIZED DEVICES

This equipment is a pressure contain-

ing device. Observe normal precautions 

when operating and servicing. Do not 

exceed design limitations of pressure 

and temperature as noted on unit serial number tag. 

Always depressurize before servicing. 

6.  MAXIMUM WORKING PRESSURE

Do not exceed maximum compressed air pressure rating 

as listed on dryer serial number tag.

 


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2

1.0 INSTALLATION

1.1 Location

See schematic drawing, Figure 1. The purifier is designed 

specifically to treat compressed air for supplied breathing air 

systems. To insure its functional operation, proper installation 

is vital.

NOTE:

 Inlet and outlet isolation valves, drain and bleed valves 

should be kept in closed position at all times when purifier is 
not in operation. 

Figure 1  

in (mm)

1.3  Cartridge 

A.    Purifier is shipped with convertor cartridge separately car-

toned. This cartridge must be installed prior to operation. 

See Section 5.2 for installation instructions.

2.0  DESIGN LIMITATIONS

A.    Flow - nominal 10 scfm at 100 psig (7.03 kg/cm

2

)

B.    Maximum working pressure - 200 psig   (14.06 kg/cm

2

standard 

C.  Maximum operating temperature - 120°F (48.9°C) 
D.    Chemical attack - compressed air does not normally 

contain contaminants which will adversely affect this 

purifier. However, aromatic and chlorinated hydrocarbons, 

acids, bases and certain other chemicals can attack parts 

of the filter assemblies and result in personal injury. 

On questionable applications, the factory should be 

consulted prior to installation or operation.

TABLE 1

Recommended maximum flow rates at various operating 
pressures.

Inlet Pressure

psig

kgf/cm

2

20

(1.4)

40

(2.8)

60

(4.2)

100

(7.0)

150

(10.6)

200

(14.0)

Flow Rate

scfm

m

3

/hr

3.0

5.1

4.8

8.2

6.5

11.0

10.0

17.0

14.4

24.5

18.7

31.8

SHIPPING

WEIGHT 

34 lbs. (15.4 kg)

1

6

3

4

2

5

7

8

20

5

/

8

 (524)

2

13

/

16

 (71)

12 (305)

32

1

/

8

 

(822)

6 (152) 

Minimum Clearance 
Required for Service

Air Outlet
1/2 - 14 NPT

Air Inlet

1/2 - 14 NPT

61/2 (165)

319/32 (91)

51/2 (140)

OPEN

OPEN

1. Filter
2. Convertor
3. Indicator 
4.  Isolation Valves
5.  Mounting Bracket
6.  Drain Valve 
7.  Indicator Bleed & Check Valve
8.  Differential Pressure Gauge

NOTE:

 Remove plastic protectors from isolation valves,  

indicator bleed valve, filter and convertor drain valves,  
and convertor head.

1.2 Mounting 

A.  Install so inlet and outlet connections are horizontal  

and so that all cartridges are in a vertical position. Tipping 

of cartridges from the vertical orientation can impede 

drainage and/or reduce their efficiency. Allow a minimum 

of 6" (152 mm) below the bottom edge of the convertor 

case for cartridge replacement.

B.  Bolt mounting bracket to wall or other support  member 

by means of (4) 5/16" fasteners.

 


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3

3.0 OPERATION

A.  The purifier, when installed properly and operated within 

its design limitations, will effectively purify compressed 

air at system pressure so that it can be utilized, after 

appropriate pressure reduction, with respirators, hoods 

and similar breathing apparatus. It will remove liquid and 

solid contaminants, odors and many toxic gases including 

carbon monoxide. (Traces of hydrogen sulfide, sulfur di-

oxide, nitrogen dioxide, and miscellaneous organic gases 

[not methane]) Treated air purity either meets or exceeds 

OSHA standard for breathing air (See Table 2.) Although 

the purifier will eliminate the impurities commonly found 

in compressed air, care should be exercised in the location 

of the air compressor intake to avoid very high concen-

trations of impurities or unusual toxic contaminants from 

being introduced into the system.

Occupational Safety and Health Regulations (1910.134d)

These regulations correspond to the Commodity 

Specification for Air, Compressed Gas Association Inc. - (CGA 
Specifications G-7.1 Type 1, Grade D).

(1) The OSHA standard also states that compressed breathing air shall meet at leat the 

requirements for Type-1 Grade 2 breathing aire described in ANSI/Compressed Gas 

Association Commodity Specification for Air ANSI/CGA G-7.1-1989.

(2) The CSA standard lists levels for a number of additional contaminants (methane. non-

methane hydrocarbons, nitrogen dioxide, nitrous oxide, halodenated hydrocarbons) and 

includes by reference contaminants documented by the ACGIH for chemical substances and 

physical agents in the workroom environment. The purifier will remove only those gaseous 

contaminants normally adsorbable by activated carbon.

*   At rated conditions, the purifier will reduce CO concentrations up to 400 PPM v/v to 

below allowable limits.

**  Since CO is converted to CO

by the purifier, high concentrations of CO in the system 

and/or high concentrations of CO

2

 at the compressor intake could result in exceeding 

allowable Co

 limits.

***Will remove gaseous hydrocarbons normally adsorbable by activated carbon.

B.  Before and during operation, it is necessary to make 

certain checks to insure satisfactory performance.
1.  Check to see that lines downstream of the purifier 

are clean and free of materials which could show up 

at the point of use of the air.

2.  Check to see that the filter and convertor are 

installed level. This is necessary to insure adequate 

drainage.

3.  Check the flow, pressure, and temperature to insure 

that the purifier is being operated within design 

limitations.    

4.  Check Indicator - DO NOT OPEN PURIFIER OUTLET 

ISOLATION VALVE IF UPPER INDICATOR BAND IS YELLOW. 
a.  With outlet isolation valve closed and purifier 

pressurized, open indicator bleed valve until 

upper indicator band turns green (approximately 

5 minutes).

b.  After upper indicator band has turned green, 

close indicator bleed valve. (Note: A fixed orifice 

will allow a small and continuous bleed of air to 

flow through the indicator.)

c.  Open outlet isolation valve to place purifier in 

operation.

d.  Low indicator band should gradually turn green 

during operation.

e.  Periodically (about every 30 minutes), check to 

see that upper indicator band is green.  

During this check, establish that indicator has 

slight bleed flow.

f.  When upper indicator band turns yellow, 

convertor cartridge should be replaced.

g.  Lower indicator band will begin to turn yellow 

if cartridge is not replaced. Cartridge must be 

replaced before lower indicator band turns 

completely yellow to avoid toxic levels of carbon 

monoxide from passing through the purifier.

TABLE 2

Contaminant

Maximum Allowable 

Concentrations

Catalite Air 

Purifier Outlet 

Concentrations at 

Rated Operating 

Conditions

OSHA (1)

CSA (2)

Carbon Monoxide (CO) 

PPM v/v

10

5

Normally 

below 10*

Carbon Dioxide (CO

2

)

PPM v/v

1000

500

Normally below 

1000**

Condensed 

Hydrocarbons  mg/m

3

5

1

0 to 0.2

Odor

Not Noticeable

Not Detectable

None***

Moisture Content 

dew point temperature

10°F (5.6°C)

below ambient

temperature

(at 1 atm.

pressure)

9°F (5°C)

below the min.

temperature

breathing air

is exposed to

(at lime pressure)

-40°F (-40°C) at line pressure,  

-71°F (-57°C) when purified 

@ 100 psig and reduced to 1 

atm. pressure acceptable for 

life of cartridge

 


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4

TABLE 3

Maximum Theoretical Life (MTL) in scf at various inlet 
pressure dew points and pressures.

Inlet dew point

(saturated air)

temperature

°F (°C)

Inlet Pressure psig (kgf/cm

2

)

20

(1.4)

40

(2.8)

60

(4.2)

80

(5.6)

100

(7.0)

150

(10.5)

200

(14.1)

40 (4)

50 (10)

60 (16)

6,798

4,644

3,230

10,716

7,321

5,091

14,634

9,998

6,953

18,552

12,675

8,814

22,470

15,352

10,676

32,265

22,044

15,330

42,060

28,736

19,984

70 (21)

80 (27)

2,281

1,634

3,596

2,575

4,911

3,517

6,226

4,458

7,541

5,400

10,828

7,754

14,116

10,108

90 (32)

100 (38)

1,186

872

1,869

1,375

2,552

1,876

3,236

2,380

3,919

2,883

5,627

4,140

7,336

5,397

4.0 MAINTENANCE

  THE PURIFIER IS A PRESSURE CONTAINING 

DEVICE. DEPRESSURIZE BEFORE SERVICING.

A.  Periodically drain the two (2) vessels.

1.  Filter - Before liquid level reaches cartridge bottom 

cap.

2.  Convertor - Each time cartridge is replaced or when 

purifier is taken out of operation.

4.1  Procedure for Filter Element Replacement 

(See Section 5 for cartridge replacement procedure.)

A.  Filter - When pressure drop across the filter exceeds 

10 psi, or when pressure drop across the purifier exceeds 

15 psi.
1.  The filter is supplied with a differential pressure 

gauge. Pressure differential in excess of 10 psi 

(0.7 kgf/cm

2

) - pressure indicator in red area - 

indicates that the element should be replaced.

B.  Convertor - When upper indicator band changes from 

green to yellow.     

C.  Determine Cartridge life 

1.  Determine cartridge life at actual operating 

conditions.  At 80°F saturated inlet compressed air 

temperature and 100 psig inlet pressure, a cartridge 

will purify 5400 standard cubic feet of air.

2.  Determine cartridge life at other conditions as 

follows:

 

Step 1 - From Table 3, find Maximum Theoretical Life 

(MTL) in standard cubic feet (scf) that model 1901 can 

handle at the pressure and dew point temperature at 

the inlet to the purifier.

 

Step 2 - If the inlet air is less than 100% saturated 

(dew point temperature is less than sensible 

temperature), adjust MTL for level of saturation. 

Refer to Table 4 and find the Saturated Air Correction 

Factor (SACF) at the intersection of the dew point 

and sensible temperatures corresponding to your 

operating conditions.

 

Step 3 - Multiply MTL from step 1 by SACF to get 

adjusted MTL.

 

Step 4 - To find actual life in minutes, divide adjusted 

life found in Step 3 by flow requirements of 

breathing apparatus.

EXAMPLE

 - Determine cartridge life at the following 

conditions: 

Flow requirement: 5 scfm  

Inlet pressure: 100 psig 

Inlet sensible temperature: 80°F 

Inlet dew point temperature: 40°F

Step 1

 - Find MTL from Table 3 at 40°F and 100 psig.  

MTL = 22,470 scf.

Step 2

 - Find SACF from Table 4 for 40°F dew point and 

80°F sensible temperatures. SACF = 0.28

Step 3

 - Find adjusted MTL by multiplying MTL by SACF. 

22,470 x 0.28 = 6292

Step 4

 - Find cartridge life in minutes by dividing 

adjusted MTL from Step 3 by flow requirement, 5 scfm. 

6292÷5 =1258 minutes (21 hours)

TABLE 4

Saturated Air Correction Factor (SACF)

Dew point (saturated air) temperatur

e

120°F (49°C)

1.00

110°F (43°C)

1.00

0.90

100°F (38°C)

1.00

0.90

0.78

90°F (32°C)

1.00

0.90

0.75

0.56

80°F (27°C)

1.00

0.88

0.70

0.51

0.39

70°F (21°C)

1.00

0.88

0.70

0.51

0.36

0.28

60°F (16°C)

1.00

0.88

0.69

0.50

0.34

0.25

0.21

50°F (10°C)

1.00

0.85

0.65

0.45

0.30

0.22

0.19

0.19

40°F (4°C)

1.00

0.87

0.65

0.42

0.28

0.19

0.15

0.13

0.13

40°F

(4°C)

50°F

(10°C)

60°F

(16°C)

70°F

(21°C)

80°F

(27°C)

90°F

(32°C)

100°F

(38°C)

110°F

(43°C)

120°F

(49°C)

Sensible temperature

 


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5

5.0  CARTRIDGE REPLACEMENT PROCEDURE

  THE PURIFIER IS A PRESSURE CONTAINING DE-

VICE. DEPRESSURIZE BEFORE REPLACING ANY CARTRIDGE.  

5.1  Filter Cartridge No. 0713-2-1

1.  Close inlet and outlet isolation ball valves. Depressurize 

the filter by slowly opening manual drain as shown.

2.  Unscrew the metal collar holding the filter bowl to the 

head and remove the filter bowl and collar. Clean the filter 

bowl.

3.  Unscrew the old filter cartridge and discard. Also  discard 

the small o-ring that seals the filter cartridge top cap to 

the filter assembly head.

4.  Insert small replacement o-ring on top of new replace-

ment filter cartridge and screw replacement filter 

cartridge into filter assembly head. It is only necessary to 

finger tighten the filter cartridge into position to insure 

the seal. DO NOT WRENCH TIGHTEN.

  THE FILTER CARTRIDGE SHOULD NEVER BE 

HANDLED BY ITS OUTSIDE FOAM COVER. DAMAGE CAN RE-
SULT. WHEN INSTALLING A REPLACEMENT FILTER CARTRIDGE, IT 
SHOULD BE HELD BY THE BOTTOM END CAP ONLY. (See Drawing)

5.  Replace filter bowl and screw collar onto filter assembly 

head.

5.2  Convertor Cartridge P/N 3154050

1.  Disconnect spring which holds convertor case to bracket.
2.  Using hands or strap wrench, unscrew case collar and 

lower case assembly vertically downward to clear used 

cartridge. If insufficient space is available to clear car-

tridge, allow case to rest on floor and proceed to next 

step.

3.  Unscrew used cartridge and remove cartridge and bowl 

assembly.

4.  Remove 5/16" nut and sleeve seal assembly from top of 

used cartridge.

5.  Open new cartridge bag. Replacement cartridges are 

furnished in a dated vapor barrier bag. (NOTE: DO NOT 

OPEN VAPOR BARRIER BAG UNTIL READY TO INSTALL NEW 

CARTRIDGE.)

6.  Insert new 1-7/8" I.D. x 2" O.D. o-ring in o-ring groove on 

top cap of new cartridge.

7.  Fasten sleeve seal assembly to top of new cartridge. 

Check to see that o-ring is properly seated in top cap o-

ring groove.

8.  Insert new 1-3/4" I.D. x 1-7/8" O.D. o-ring in sleeve seal.
9.  Check convertor case to see that cartridge support spring 

is positioned in the bottom of the case.

10.  Screw cartridge into head and hand tighten. Install case 

and hand tighten collar. (If bottom edge of mounting 

bracket is less than 45 inches above floor, place cartridge 

in case and position both below head before installing 

cartridge.) Hand tightening of cartridge and case is 

adequate to insure seals. DO NOT USE WRENCH TO 

TIGHTEN CARTRIDGE.

11.  Reconnect convertor case retaining spring.
12.  Prior to placing air purifier into service, observe purifier 

warning labels. Do not open purifier outlet isolation valve 

if upper indicator band is yellow. See Section 3.0.

NOTE:

 DO NOT USE A WRENCH TO TIGHTEN THIS EQUIPMENT.

OPEN ( TO RIGHT )

KNURLED FITTING

Head

O-ring

1-3/4” X 1-7/8”

Sleeve Seal

Assembly

Converter

Case

Hex Nut

5/16” - 18

O-ring

1-7/8” x 2”

Cartridge

No. 0719-1

Spring

 


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6

1.  Depressurize the purifier.
2.  With indicator still installed, unscrew combination bleed 

and check valve assembly from indicator housing.

3.  Remove lower gasket and old indicator cartridge.
4.  Replace upper gasket and check to insure that it is prop-

erly seated in housing.

5.  Install new indicator cartridge in housing so that thinner 

band of colored granules (indicator gel) is at the top.

6.  Insert new lower gasket.
7.  Screw the combination bleed and check valve assembly 

back into indicator housing.

6.0  GENERAL INFORMATION 

1.  When the purifier is not in operation, all valves should be 

closed, including the vessel drain cocks and the indicator 

bleed valve. The convertor cartridge and indicator vessel 

contain moisture sensitive materials. 

NOTE:

 When indicator bleed valve is closed and system 

is not in operation, an integral check valve will prevent 

atmospheric air from entering and contaminating car-

tridges.

2.  Replacement convertor cartridge should not be exposed 

to moisture or high humidity. Do not unseal vapor bag 

until immediately before installation and operation.

3.  Replacement of the convertor cartridge, which is con-

sumable, is much more frequent (hours of use) than the 

filter cartridge (months of use).

4.  Consult factory for questionable applications or when in 

doubt about intended usage.

PARTS LIST 

Description

Part

Number

Cartridge

Replacement No.

Filter
Convertor Case
Moisture Indicator

3154029
3154185
4003168

0713-2-1

3154050
3154165

Isolating Valve (2)
Drain Cock (Manual) (2)
Bleed & Check Valve Assembly
Spring

4009899
3154103
3154199
3154187

Bracket
O-ring 1-3/4 ID x 1-7/8 OD
Nut Hex 5/16-18
Sleeve Seal Assembly
O-ring 1-7/8 ID x 2 OD

3154034
3154404
3154135
3154411
3154405

Inlet 
Orifice

Indicator 
Housing

Upper Gasket

Indicator 
Tube

Lower Gasket

Combination Bleed &
Check Assembly

INLET 
ORIFICE

INDICATOR 
HOUSING

UPPER
GASKET

INDICATOR
TUBE

LOWER GASKET

COMBINATION
BLEED & CHECK
VALVE ASSEMBLY

5.3  Indicator Kit P/N 3154165

 


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WARRANTY

The manufacturer warrants the product manufactured by it, when properly installed, operated, applied, and maintained 

in accordance with procedures and recommendations outlined in manufacturer’s instruction manuals, to be free from 

defects in material or workmanship for a period as specified below, provided such defect is discovered and brought to 

the manufacturer’s attention within the aforesaid warranty period. 
The manufacturer will repair or replace any product or part determined to be defective by the manufacturer within 

the warranty period, provided such defect occurred in normal service and not as a result of misuse, abuse, neglect or 

accident. Normal maintenance items requiring routine replacement are not warranted. The warranty covers parts and 

labor for the warranty period unless otherwise specified. Repair or replacement shall be made at the factory or the 

installation site, at the sole option of the manufacturer. Any service performed on the product by anyone other than the 

manufacturer must first be authorized by the manufacturer.
Unauthorized service voids the warranty and any resulting charge or subsequent claim will not be paid.  Products 

repaired or replaced under warranty shall be warranted for the unexpired portion of the warranty applying to the original 

product.
The foregoing is the exclusive remedy of any buyer of the manufacturer’s product. The maximum damages liability of 

the manufacturer is the original purchase price of the product or part.
THE FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, WHETHER WRITTEN, ORAL, OR 

STATUTORY, AND IS EXPRESSLY IN LIEU OF THE IMPLIED WARRANTY OF MERCHANTABILITY AND THE IMPLIED WARRANTY OF 

FITNESS FOR A PARTICULAR PURPOSE. THE MANUFACTURER SHALL NOT BE LIABLE FOR  LOSS OR  DAMAGE BY REASON OF 

STRICT LIABILITY IN TORT OR ITS NEGLIGENCE IN WHATEVER MANNER INCLUDING DESIGN, MANUFACTURE OR INSPECTION OF 

THE EQUIPMENT OR ITS  FAILURE TO DISCOVER, REPORT, REPAIR, OR MODIFY LATENT DEFECTS INHERENT THEREIN.
THE MANUFACTURER, HIS REPRESENTATIVE OR DISTRIBUTOR SHALL NOT BE LIABLE FOR LOSS OF USE OF THE PRODUCT OR 

OTHER INCIDENTAL OR CONSEQUENTIAL COSTS, EXPENSES, OR DAMAGES INCURRED BY THE BUYER, WHETHER ARISING FROM 

BREACH OF WARRANTY, NEGLIGENCE OR STRICT LIABILITY IN TORT.
The manufacturer does not warrant any product, part, material, component, or accessory manufactured by others and 

sold or supplied in connection with the sale of manufacturer’s products.

AUTHORIZATION FROM THE SERVICE DEPARTMENT IS NECESSARY BEFORE MATERIAL IS RETURNED TO THE 

FACTORY OR IN-WARRANTY REPAIRS ARE MADE.