3M BK User Manual

Betapure

™

BK Series Absolute Rated Filter Cartridge

ltration systems include clarifying lters, pre-lters, nal lters,
stainless steel housings and engineered skid-mounted systems
designed and sized for specic applications.

Absolute Betapure™ BK Series

Absolute Betapure BK series removal ratings are determined
for the entire cartridge life using a new lter performance test
developed by 3M Purication that complies with the general
procedure outlined in ASTM 975. A copy of 3M Purication’s
Technical Report summarizing absolute rating of Betapure
BK series cartridges and the test methodology is available by
requesting 3M Purication literature number LITTDMPC2.795.

3M Purication denes Absolute Rating as “ the particle size (x)
providing an initial Beta Ratio (βx) = 1000.” At this Beta Ratio the
removal efciency is equal to 99.9%. Beta Ratio (βx) is dened by
the following equation:

Betapure™ BK
Series Filters

ßx =

Betapure™ BK Series Filters – The Clear Solution

3M Purication Inc. continues an 80 year tradition of innovative
cost effective solutions to challenging industrial ltration
applications with Betapure™ BK series. Betapure BK series is a
truly absolute rated, rigid (non-compressible) resin bonded lter
cartridge.

Consistent quality and performance at absolute ratings from 5 to
70 m make Betapure BK series the clear choice in the confusing
world of indistinguishable “me-too” cartridge lters.

Consistent Performance

Absolute rated rigid structure Betapure BK series provides
consistent performance. Unlike many competitors, Betapure BK
series does not unload or lose ltration efciency throughout its
usable life!

Significant Life Advantage

Betapure BK series’s rigid graded-porosity grooved structure
provides a signicant life advantage over the competition!

3M Purication provides quality solutions worldwide for
the most challenging ltration applications. 3M Purication

Cumulative Number of Particles Larger than x in the Influent Challenge

Cumulative Number of Particles Larger than x in the Effluent

Betapure BK series lters achieve a minimum Betax (βx) value of
1000 at the specied ratings seen in Table 1.

Betapure™ BK Series Features & Benefits

Absoltue rated cartridge filters from 5 - 70 microns



Absolute filtration efficiency at the specified reduction rating



Consistent production yields with absolute contaminant retention

Rigid resin bonded structure



No by-pass or unloading at high differential pressure



Consistent product quality throughout the filter's life

Grooved surface with true graded-porosity internal structure



Significantly longer life



Cost effective filtration with optimized yields

300 °F high temperature option



Choice of temperature compatible options



Inventory one product for many applications

No metal or plastic cores



Easy disposal, suitable for incineration or shredding



Disposal cost reduction

Available with polypropylene or polyester end modifications



Retrofit any industrial housing



Usuable in existing filter housings

1

Table 1. – Betapure™ BK Series Absolute Ratings

Grade Designation ßx = 1000 (x = Absolute Micron Rating)

Z8 050 5

Z8 070 7

Z8 100 10

Z8 140 14

Z8 150 15

Z8 200 20

Z8 300 30

Z8 400 40

Z8 500 50

Z8 700 70

High Temperature Betapure™ BK Series

Standard Betapure™ BK series provides consistent performance at temperatures to 250 °F (121 °C) and differential pressures to 70 psid
(4.8 bar). High temperature (HT) Betapure BK series extends the temperature rating to 300 °F (149 °C) for those non-aqueous processes
that require service under extreme conditions.

Betapure™ BK Series – Consistent Performance

The initial Beta Ratio for all grades of Betapure BK series lter cartridges is equal to or greater than 1000, and each cartridge performs
at or above this initial value throughout its usable (all the way to plugging) life! This denes Betapure BK series’ absolute ltration
performance. The Beta Ratio vs. Differential Pressure Graphs 1 and 2 illustrate how competitive lters do not achieve the consistent
performance of Betapure BK series. Filters that show a decrease in Beta Ratio as the differential pressure increases are exhibiting
either unloading of previously held contaminants or a loss of ltration efciency. This inconsistent performance results in a reduction in
nished product quality, product yield, and an increase in total ltration cost.

As illustrated in Graphs 1 and 2, the performance of melt-blown polypropylene (Competitor P) degrades rapidly after a small (0.5 psi)
increase in differential pressure, indicating contaminant unloading and a loss of ltration efciency typical of a compressible structure.
In Graph 1, the generic cotton wound, Competitor C, exhibits erratic performance caused by media movement under increasing
pressure, and, in Graph 2, it exhibits minimal ability to retain contaminant throughout the test. In Graph 1, melt-blown Competitor O
never approaches a Beta Ratio of 1000, and it shows a decreasing Beta Ratio at high differential pressure. Resin bonded Competitor
F, as shown in Graph 2, exhibits very low Beta Ratios at low differential pressures indicating poor performance. Above 1.0 psid, the
contaminant builds a cake which accounts for the subsequent increase in Beta Ratio. Betapure BK series exhibits consistent Beta Ratios
at all differential pressures.

Rigid Graded-Porosity Betapure™ BK Series

Betapure BK series lter cartridges are manufactured using an exclusive process
that achieves a true “graded-porosity” ber structure with a clean and smooth inside
diameter. Each ber is locked in this arrangement by a thermosetting resin binder to
create a rigid structure, eliminating the need for a metal or plastic center core. Larger
particles are trapped in the outer area and ner particles towards the inner area.
Figure 1 illustrates how in a graded-porosity structure the overall effect is to classify
and retain particles by size as they progress through the cartridge.

FLUID

GRADED-POROSITY

STRUCTURE

Figure 1. – Betapure™ BK Series Graded­Porosity Structure

FLUID

2

High Surface Area Betapure™ BK Series

Betapure™ BK series cartridges also feature an optimized
groove pattern that increases the surface area by over 65%
when compared to smooth cylindrical cartridges (see Figure 2).
The grooved surface prevents premature blinding of the outer
surface by large particles and allows full utilization of the depth
structure. Maximum surface area with a true graded-porosity
structure means that Betapure BK series can provide 3 times or
greater service life than competitive lter cartridges.

Graph 1. - Beta Ratio Comparison Of Filter Cartridges Rated At 20 Microns

1200

1000

800

600

Betapure™ BK Series Filters

GROOVED

SURFACE

FLOW

INCREASE IN

SURFACE AREA

Figure 2. – Surface Area Comparison

FLOW

UNGROOVED

SURFACE

Beta Ratio

400

200

0

Initial 0.5 1

Betapure™ BK Series - Rigid Res in Bonded Compet itor P - Mel t-Blown Propylene
Compet itor O - Mel t-Blown Polypro pylene Competitor C - Co tton Wound

Differential Pressure

Graph 2. - Beta Ratio Comparison Of Filter Cartridges Rated At 70 Microns

1200

1000

800

600

Beta Ratio

400

200

10

™

Betapure

BK Serie s at or above

1000 throughout service life

Note:

0

Initial 0.5 1

Betapure™ BK Series - Rigid Res in Bonded Compet itor P - Mel t-Blown Propylene
Compet itor F - Gen eric Resin Bonded Compet itor C - Cotton Wou nd

Differential Pressure

3

10

™

Betapure

BK Serie s at or above

1000 throughout service life

Note:

Betapure™ BK Series Product Specifications

Absolute Rating

(µm)

5 Z8050

7 Z8070

10 Z8100

14 Z8140

15 Z8150

20 Z8200

30 Z8300

40 Z8400

50 Z8500

70 Z8700

Standard Temperature

High Temperature

Maximum Operating Temperature

Maximum Differential Pressure 70 psid (4.8 bar) @ 68 °F (20 °C)

Recommended Change-out Dif-

ferential Pressure

Inside Diameter 1 1/16" (26.9 mm)

Outside Diameter 2 19/32" (65.9 mm)

Cartridge Length 9 3/4" through 40" (248 - 1016 mm)

Grade Fiber Resin

Acrylic/Glass/Cellulose

Phenolic

Acrylic/Cellulose

Cartridge End Modifications

Polypropylene bonding with polypropylene

end modifications

Thermoset epoxy bonding with polyester

end modifications

Operating Parameters

Standard – 250 °F (121 °C)

With polyethylene gasket – 200 °F (93 °C)

With polypropylene end modifications – 180

°F (82 °C)

High Temperature Option – 300 °F (149 °C)

with or without polyester end modifications,

non-aqueous applications

35 psid (2.4 bar)

Dimensions

Betapure™ BK Series Applications

Betapure™ BK series provides consistent reproducible ltration
performance and longer life while meeting or exceeding
quality specications in a wide variety of industrial processing
applications. Betapure BK series is particularly well suited for
high viscosity uids, high temperature processes, and differential
pressures to 70 psid (4.8 bar).

• Petroleum Products - gas, oils, gasoline, kerosene, lube oil,
fuel oil, waxes

• Chemical/Petrochemical - acids, bases, organic solvents,
catalysts, monomers, polymers, glycols

• W a t e r - p r o c e s s w a t e r , p r o d u c e d w a t e r , b o i l e r f e e d ,
demineralized feed, pre-reverse osmosis system, waste
water

• General Industrial - paint, varnish, lacquer, inks, coatings,
e m u l s i o n s , m a g n e t i c m e d i a , r e s i n s , d e t e r g e n t s , a d h e s i v e s ,
machine tool coolants, cutting oils, parts washers

• Brines and aqueous salt solutions

Betapure™ BK Series Flow Rates

Table 2. – Betapure™ BK Series Flow Rates

Grade

Z8 050 5 0.75 13. 6 3 11.4

Z8 070 7 0.33 5.98 3 11.4

Z8 100 10 0.20 3.64 4 15 .1

Z8 140 14 0.16 2.89 4 15.1

Z8 150 15 0.27 4.88 4 15.1

Z8 200 20 0 .13 2.34 5 18.9

Z8 300 30 0.08 1.44 5 18.9

Z8 400 40 0.06 1.10 6 22.7

Z8 500 50 0.05 0.89 7 26.5

Z8 700 70 0.03 0.55 7 26.5

1

Specific aqueous pressure drop at ambient temperature for a single equivalent 10"
cartridge . For multiple cartridge lengths, divide total flow by the number of single length
equivalents.

2

Optimal efficiency and life is achieved at aqueous flow rates less than the maximum flow
indicated.

Absolute

Rating (µm)

Specific Pressure Drop

Per 10" Cartridge1

psi/gpm mbar/lpm gpm lpm

Recommended Maxi-

mum Aqueous Flow

Rate2 Per 10" Cartridge

4

Betapure™ BK Series Filters

Table 2 provides ow information for Betapure™ BK series
lters in aqueous uids.

For liquids other than water, multiply the specic pressure
drop value (in column 3) by the viscosity in centipoise. The
specic pressure drop values may be effectively used when
three of the four variables (Viscosity, Flow, Differential
Pressure, and Cartridge Grade) are set.

Betapure™ BK Series Chemical Compatibility

Table 3 shows Betapure BK series’s wide range of chemical
compatibility. Betapure BK series exhibits excellent
resistance to petroleum products, organic solvents, water,
acids, brines and aqueous salt solutions. Betapure BK
series is not recommended for strong acids or bases at
temperatures over 100 °F (38 °C).

Table 3. – Chemical Compatibility

Fluid

Category Example

Gasoline R

Kerosene R

Petroleum

Organic Solvents

Amines (DEA, MDEA, MEA) 20% - 50%

Water

Organic Acids

Hydrochloric (Muriatic ) Acid 5% R

Inorganic Acids

Brines and Aqueous

Salt Solutions

Weak Alkalis

Fatty Acids – Oils

Oxidizers Hydrogen Peroxide 90% R

R = Generally Recommended up to 250 °F (121 °C) unless otherwise noted. N = Not
Recommended L = Likely Compatible, test before use.

Diesel Fuel R

Lube Oil R

Fuel Oil R

Waxes R

MEK R

Benzene R

Toluene R

Xylene R

Alcohols R

Glycols R

Dimethyl Formamide (DMF) N

up to 160 °F (71 °C)

Process - to 212 °F R

Produced - to 212 °F R

Boiler Feed - to 212 °F R

Demineralizer Feed - to 212 °F R

Potable Water N

WFI N

Acetic (100%) R

Tannic 10% R

Sulfuric 50% R

Sulfurous 5-10% R

Nitric R

Sodium Chloride R

Sodium Sulfate R

Sodium Nitrate R

Aluminum Hydroxide R

Ferric Hydroxide R

Magnesium Hydroxide R

Detergents R

Mineral Oil R

Industrial Vegetable Oils R

Silicone Oils R

Rating

L

5

Betapure™ BK Series Ordering Guide

Ca r tridge Type Length* Grade Surface Packaging**

BK - Betapure™

Series

* Lengths are multiples of either 9 3/4" or 10". ** All 39" and 40" cartridges poly bagged. ***Required for grades Z8050 through Z8140

09 - 9 ¾" Z8050 G – Grooved 1 – Standard Shrink Wrap S – Standard C - 222 O-ring & A - Silicone

10 - 10 " Z8070 U – Ungrooved 2 – Bulk Pack H – High Temp. Spear B - Fluorocarbon

19 - 19½" Z 8100 F - 222 O-ring & C - EPR

20 - 20" Z 8140 Flat Cap D - Nitrile

29 - 29¼ Z8150 K - 222 O-ring, G - Volara Gasket***

30 - 30" Z8200 Retaining Clip & N - None

39 - 39" Z8300 Flat Cap Y - Nylon Flat Gasket

40 - 40" Z8400 N - None

Z8500 P - Polypropylene

Z8700 Core Extender

Temper atur e

Option

Notes on End Modification Ordering

Double Open-End (DOE) Cartridges

DOE without end modication or gasket: N - N

DOE with at gasket: N - G

End Modification Gasket/O-ring

S - SS Core

Extender

Single Open-End (SOE) O-ring Style End Modifications

C - Code 8 style end modication (222) double o-ring connector with locating spear for use with standard plug-in style housing
diaphragms and positioning plates.

F - Code 3 style end modication (222) double o-ring connector with at cap for use with standard plug-in style housing.

K - 222 style o-ring connector with one o-ring and retaining clip for use with the 7PC housing

Core Extenders - For proper alignment and cartridge centering in competitive housings

P - Polypropylene extender for applications where compatible

S - Stainless Steel extender for chemical compatibility and for high temperatures > 180 °F (82 °C)

6

Betapure™ BK Series Filters

Important Notice

The information described in this literature is accurate to the best of our knowledge. A variety of factors, however, can affect the performance of the Product(s) in a particular
application, some of which are uniquely within your knowledge and control. INFORMATION IS SUPPLIED UPON THE CONDITION THAT THE PERSONS RECEIVING THE

SAME WILL MAKE THEIR OWN DETERMINATION AS TO ITS SUITABILIT Y FOR THEIR USE. IN NO EVENT WILL 3M PURIFICATION INC. BE RESPONSIBLE FOR DAMAGES
OF ANY NATURE WHATSOEVER RESULTING FROM THE USE OF OR RELIANCE UPON INFORMATION.

It is your responsibility to determine if additional testing or information is required and if this product is fi t for a particular purpose and suitable in your specifi c application.

3M PURIFICATION INC. MAKES NO REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS OR IMPLIED INCLUDING WITHOUT LIMITATION ANY WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR OF ANY OTHER NATURE HEREUNDER WITH RESPECT TO INFORMATION OR THE PRODUCT TO WHICH
INFORMATION REFERS.

Limitation of Liability

3M Purifi cation Inc. will not be liable for any loss or damage arising from the use of the Product(s), whether direct, indirect, special, incidental, or consequential, regardless of
the legal theory asserted, including warranty, contract, negligence or strict liability. Some states do not allow the exclusion or limitation of incidental or consequential damages,
so the above limitation may not apply to you.

Your Local Distributor:

3M Purifi cation Inc.

400 Research Parkway
Meriden, CT 06450
U.S.A.
Phone [phone]
(20 3) 2 37-5 541
Fax [phone]
www.3Mpurifi cation.com

Betapure is a trademark of 3M Company used under license.

Please recycle. Printed in U.S.A.

3M is a trademark of 3M Company.

© 3M 2011. All rights reserved.

70-0201-8688-1 REV 1111b