| |
 |
Filtering capsules
Description
Capsules
are ready-for-use factory-assembled single-piece filters designed as
minicartridges soldered into polypropylene holders. This design makes it
possible to use the capsules without installing the filter holder. Capsules
are intended for rapid and effective filtration of small volume batches of
liquids and gases. They are especially effective in critical applications where
filtration of individual batches of the product is needed (one-off use). Since
washing followed by autoclaving remains possible, capsules can be used many
times until the capacity of the filter surface is fully exhausted.
Capsule
filters can be used for small-scale pilot testing at early stages of filtration
system development to select the optimum combination of filters, especially for
processing of hard-to-filter solutions, avoiding investments in stainless steel
equipment. Capsule
filters have highly strong leak-proof polypropylene shells and incorporate
various filter materials in a broad spectrum of pore sizes.
Advantages
of capsules over flat disc filters
|
Properties
of capsules
|
Benefits
for the consumer
|
|
Compact,
light-weight, leak-proof
|
Easy
and reliable in use
Safe
for autoclaving
|
|
Factory-assembled,
pre-tested, ready-for-use filtration systems
|
No
need for investing in the filter unit
|
|
Contain
no metal parts or gaskets
|
Chemical
stability is solely dependent on filter material. Perfectly suitable for
solutions containing ferments that are sensitive to metals
|
|
Considerably
larger filter area compared to 142 mm and 293 mm disc filters
|
Possibility
of filtering large volumes at high rates. One capsule can contain various
filter layers (combinations of different pore sizes and materials), ensuring
high-flux fractional separation
|
Capsule
filters incorporating KFM (КФМ) microfiltration membranes
Design
KFM capsule filter is a two- or one-layer pleated membrane minicartridge pressed
into a one-piece polypropylene shell which is 126 mm high (including pipe
sockets) and 92 mm in diameter. The effective filter area of a capsule is 0.125
or 0.14 m2, which is approximately equivalent to that of 2 standard
discs 293 mm in diameter. Capsule
filters can have two types of connections:
-
½" thread connection for
hoses
-
1 ½" three-clamp
connection (standard)
In
the course of capsule filter production, all membrane filter elements are
washed with high-purity water and 100% integrity tested. Two-layer
capsule filters are available with the same pore size combinations as
respective grades of cartridge membrane filters. The
capsule filter elements are included into the State register of medical
products, have a conformance certificate for medical industry and sanitary
certificates authorizing their use in food industry. Main
applications
КFМ.К/КFМ.К+ capsule filter
Biopharmaceutics
and healthcare
-
Clarification and
sterilization of small or medium-size (up to 600 l) batches of liquids, e.g.
injection solutions, culture media
-
Filtration of individual
batches of solutions
-
As a final filter in filling
machines having small hold-up volumes
-
Removal of pyrogens at the
final stages of treatment of water for injections
-
As a replacement for 293
mm disc filters
Electronic
industry
-
at the points of use of
ultrapure water (removal of bacteria and colloids)
-
filtration of individual
batches of photoresists
Food
industry
-
final filtration in the
cases where small batches of beverages are produced
-
filtration of ingredients
-
for experimental purposes
when selecting the optimum fineness of filtration
КFМ.F
capsule filter
-
Sterilization of the
venting air for small storage tanks (‘breathing' of tanks)
-
Sterilization of
compressed air, gases, CO2
-
Removal of particles and
‘mist' from laboratory air lines
-
Protection of air used in
instruments
-
Clarification and
sterilization of non-aqueous solutions, aggressive media
КFМ.FG
capsule filter
-
Filtration of individual
batches of solutions
-
Filtration of process
water for bottles and vials
-
For experimental purposes
when selecting the optimum fineness of filtration in various industries
КFМ.PES
capsule filter
-
Filtration of individual
batches of solutions having low or high pH levels
-
Filtration of highly
viscous media, including ophthalmological preparations
-
Filtration of protein
solutions in the cases where sorption should be avoided
-
Filtration of process
water for bottles and vials
Materials
of construction
|
Name
|
КFМ.К/ КFМ.К+
|
КFМ.F
|
КFМ.FG
|
КFМ.PES
|
|
Filter membrane
|
Polyamide (Nylon-6), Z-potential
|
Ftoroplast 4 (PTFE-Teflon) Ftoroplast 42 (hydrophobic)
|
Ftoroplast 42 (hydrophilic)
|
Polyethersulfone
|
|
Drainage layer
|
Polypropylene
|
|
Capsule shell
|
Polypropylene
|
Technical
and operating characteristics
|
Name
of parameter
|
КFМ.К capsule filter (polyamide
membrane)
|
|
Average
pore size of the membrane, μm
|
0.1
|
0.2
|
0.45
|
0.65
|
0.8
|
1.0
|
|
Minimum
bubble point, MPa
|
0.50
|
0.33
|
0.24
|
0.17
|
0.12
|
0.10
|
|
Initial
flow rate for distilled water at t=20°C / P=0.05 MPa, m3/h,
no less than
|
0.10
|
0.20
|
0.35
|
0.45
|
0.50
|
0.60
|
|
Maximum
operating pressure, MPa
|
0.5
|
|
Maximum
differential pressure, MPa
|
0.5
at 20°C; 0.1 at 60°C
|
|
Maximum
operating temperature, °C
|
60
|
|
Effective
filter area, m2
|
0.14,
one-layer; 0.125, two-layer
|
|
Number
of sterilization cycles (by autoclaving) at P=0.11 MPa / t=121±1°C for 45 min, no less than
|
10
|
Example
of order: КFМ.К-045/020
Technical
and operating characteristics
|
Name
of parameter
|
КFМ.F/КFМ.FG capsule filter (Ф42
fluoroplastic membrane)
|
|
Average
pore size of the membrane, μm
|
0.15
|
0.25
|
0.45
|
0.65
|
|
Minimum
bubble point, MPa
|
0.33
|
0.22
|
0.11
|
0.08
|
|
Initial
flow rate for air at t=20°C
/ P=0.05 MPa, m3/h, no less than
|
3.0
|
5.0
|
10.0
|
15.0
|
|
Initial
flow rate for distilled water at t=20°C / P=0.05 MPa, m3/h, no less than
|
0.15
|
0.25
|
0.45
|
0.65
|
|
Maximum
operating pressure, MPa
|
0.5
|
|
Maximum
differential pressure, MPa
|
0.5
at 20°C; 0.1 at 60°C
|
|
Maximum
operating temperature, °C
|
60
|
|
Effective
filter area, m2
|
0.14,
one-layer; 0.125, two-layer
|
|
Number
of sterilization cycles (by autoclaving) at P=0.11 MPa / t=121±1°C within 45 min, no less than
|
10
|
Example
of order: КFМ.F-025/015
Technical
and operating characteristics
|
Name
of parameter
|
КFМ.PES capsule filter (polyethersulfone
membrane)
|
|
Average
pore size of the membrane, μm
|
0.20 0.45 0.65
|
|
Minimum
bubble point, MPa
|
0.33 0.24 0.17
|
|
Initial
flow rate for distilled water at t=20°C / P=0.05 MPa, m3/h, no less than
|
0.40 0.70 0.90
|
|
Maximum
operating pressure, MPa
|
0.5
|
|
Maximum
differential pressure, MPa
|
0.5
at 20°C; 0.1 at 60°C
|
|
Maximum
operating temperature, °C
|
60
|
|
Effective
filter area, m2
|
0.14,
one-layer; 0.125, two-layer
|
|
Number
of sterilization cycles (by autoclaving) at P=0.11 MPa / t=121±1°C for 45 min, no less than
|
30
|
Example
of order: КFМ.PES-045/020
|
|
English
