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» Smooth Bore » Pharmalex |
PHARMALEX HOSE -
See Also
Pharmaline |
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Pharmalex is a
very flexible, patented smoothbore PTFE lined hose
product with a clear silicone rubber cover. It is
designed to replace conventional all-silicone rubber
hoses in applications where the inner silicone
rubber liner may be subject to chemical reaction
with fluids passing through, which may either
contaminate the fluid, or degrade the rubber liner. |
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APPLICATIONS
Generally, Pharmalex is designed for light duty
applications, with low internal fluid or gas pressures.
Pharmalex is designed for use in high purity Pharmaceutical,
Biotech, Chemical and Foodstuffs application areas, where
ease of cleaning the hose is required, both internal and
external. It is also very suitable for use in other
general industrial applications, particularly those where
hot fluids or gases are being passed.
ALTERNATIVE
PRODUCTS
Pharmaline is a higher pressure capable,
heavier duty alternative to Pharmalex.
Pharmaline
includes an SS wire braid between the tube and a white
silicone rubber cover.
HOSE TYPES,
DESIGNS & APPROVALS
Pharmalex GP has a PTFE hose liner tube, manufactured from
PTFE material in accordance with FDA requirement 21 CFR
177.1550. |
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An antistatic PTFE option
is also available, Pharmalex AS, using liner material in
accordance with the FDA requirement 21 CFR 178.3297.
Both Pharmalex GP and
Pharmalex AS have been tested and the PTFE liners comply
with USP Class VI, including the Elution (Cytotoxicity)
test.
Both include a Platinum
Cured clear (transparent) silicone rubber cover (Post-cured
4 hours at 200˚C in accordance with requirements for USP
Class VI). The Silicone Rubber material is in accordance
with FDA requirement CFR-177-2600.
Alternative colors of the
silicone rubber cover are also available, to
special order.
ADVANTAGES OVER CONVENTIONAL HOSE DESIGNS
Pharmalex can be used to replace silicone rubber
hoses and tubing, particularly where the much better
chemical resistance and ease of cleaning of the PTFE
hose liner is an advantage.
Unlike silicone rubber lined hoses and tubing,
Pharmalex can be steam sterilized any number of
times, without degradation of the hose liner.
Pharmalex can
be used to replace conventional smoothbore PTFE
lined hoses in applications where the much
better flexibility of Pharmalex is an advantage.
Pharmalex can be used in low pressure, light
duty applications in place of more expensive
reinforced PTFE and Silicone hose designs.
PROPERTIES
Temperature Range: -60°c (-80°F) to +200°C
(400°F).
Pressure vs Temperature - Pressure ratings are
as listed up to 130°C (266°F), then reducing at
1% per 1°C (1.8°F) up to 200°C (400°F).
Vacuum - All sizes fully vacuum resistant up to
100°C.
FURTHER TECHNICAL INFORMATION
Further technical information related to PTFE
material, Antistatic specifications, usage
requirements and limitations, testing and flow
rates etc. is available in the Bioflex and
Corroflon Product Information pages on this
website.
END FITTINGS
Sanitary and Mini Sanitary Triclamp (Triclover)
fittings in 316SS, with bores polished to
<0.375µm (<15µ in).
I-Line Fittings
Compression
Fittings.
BSPT and NPT Fixed Male Pipe Fittings.
Flanges, Camlocks, DIN 11851, RJT, SMS, RJP and
others to
special order.
HOSE ASSEMBLIES
Pharmalex can be assembled using the same end
fittings and ferrules as for Pharmaline.
IDENTIFICATION OPTIONS
Silicone encapsulated color coding, and / or
text information to suit customers requirements.
'Flotag' RFID chip, programmed to suit customers
requirements. Unique Serial Numbers
and other information for each hose, stamped on
ferrules or SS tags, to give total traceability.
|
Hose Size |
Actual Hose ID |
O/D over
Silicone Cover |
Minimum
Bend Radius |
Maximum
Working
Pressure |
Burst
Pressure |
Weight per
Unit Length |
|
in |
mm |
in |
mm |
in |
mm |
in |
mm |
PSI |
Bar |
PSI |
Bar |
lb/ft |
kg/mtr |
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1/4 |
6.4 |
0.270 |
6.8 |
0.433 |
11.0 |
1 1/4 |
30 |
109 |
7.5 |
435 |
30 |
0.06 |
0.09 |
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3/8 |
9.5 |
0.375 |
9.5 |
0.575 |
14.6 |
1 1/2 |
38 |
87 |
6.0 |
348 |
24 |
0.09 |
0.14 |
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1/2 |
12.7 |
0.500 |
12.7 |
0.740 |
18.8 |
2 1/2 |
63 |
84 |
5.8 |
334 |
23 |
0.14 |
0.21 |
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3/4 |
19.0 |
0.750 |
19.0 |
1.040 |
26.4 |
4 |
100 |
62 |
4.3 |
247 |
17 |
0.21 |
0.32 |
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1 |
25.4 |
1.000 |
25.4 |
1.336 |
33.9 |
6 |
150 |
52 |
3.5 |
203 |
14 |
0.33 |
0.49 |
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GP GRADES
Purpose
GP is the ‘General Purpose’ grade, for use in all
applications where fluids or gases are being
conveyed which do not generate a risk of static
charge development (see “AS”).Design & Approval
GP Grade has a virgin PTFE liner, manufactured
from hose grade PTFE which conforms to the requirements of
FDA 21 CFR 177.1550.
Both the PTFE liner tube and the platinum cured
silicone rubber cover have been tested and conform
to the requirements of USP Class VI. Additionally,
the PTFE liner tube meets the requirements of USP Class VI
at 121˚C (250˚F) |
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Pharmaline hose (but not Pharmalex Hose) in sizes
3/4” and above includes a Grade 304 SS wire
helically wound in the external convolutions, to
reinforce the hose against kinking.
EC - Electrical Continuity
(Also known as “Electrically Bonded”)
Electrical continuity requires that the hose assembly
supplied is electrically continuous, or conductive,
between metal end fittings at each end of the hose.
This can apply whether the hose is GP or AS grade.
The requirements for this are specified in the German
Document BRG 132 and EN ISO 8031:2009 Annex A,
when tested in accordance with EN ISO 8031:2009
Clause 5, which requires that the resistance between
end fittings shall be <102 ohms per assembly. For hose
assemblies which meet this requirement a Grade "M"
marking can be applied in accordance with EN ISO
8031:2009 Annex A if requested.
Pharmaline Hose Assemblies with crimped fittings are
all electrically continuous.
Pharmaline hose assemblies with Relink fittings are not
normally Electrically Continuous, but can be made EC
by a special Assembly Procedure RRF-SA-001/2.
Pharmalex hose assemblies are not Electrically
Continuous.
AS GRADES
Purpose
AS Grade is an
essential requirement in applications where
there is the risk of an electrostatic charge
buildup on the inside surface of the PTFE tube
which may then discharge through the tube wall.
Media passing through which create such a risk
are fluids which have a Conductance of less than
10-8 S/m (Siemens per Metre), or 104 pS/m such
as fuels, solvents, freons, some WFI (ultra-pure
“Water for Injection”) and nonpolar
organics which are being transferred at a medium
to high flow velocity.
All twin or multi phase media, and any
non-mixing media, such as powder in air, or
water droplets in steam, in gases or in oil,
also colloidal fluids constitute a particular
hazard for static charge generation, and always
require grade AS.
Design &
Approval
AS Grade hose has an anti-static PTFE liner
manufactured from FDA 21 CFR 177.1550 approved
PTFE, and less than 2.5% of “high purity” Carbon
Black material to FDA requirement 21 CFR
178.3297 and European Commission Directive
2007/19/EC. AS
Grade also conforms to the requirements of USP
Class VI, at 37˚C (99˚F), 70˚C (158˚F) and 121˚C
(250˚F).
Antistatic Hose
Assemblies
When "AS" (Antistatic) grade hose is specified,
then the hose or hose assembly supplied will be
tested in accordance with EN ISO 8031:2009
Clause 7 using electrodes specified in EN ISO
8031:2009 Clause 4.2.2.2 d) (and Clause 4.2.2.2
e if the hose has an antistatic cover) and meet
the Antistatic requirements
of EN ISO 8031:2009 Annex A. This requires, for
an antistatic liner or antistatic cover, that
the resistance between an appropriately placed
foam electrode and a metallic end fitting will
be between 103 to 108 ohms per assembly. For
hose assemblies which meet these requirements an
appropriate Grade "Ω" marking can be applied in
accordance with EN ISO 8031:2009 Annex A if
requested.
NOTE:
When in service, at least one end fitting must
be
connected to earth, to permit dissipation of the
static
charge from the end fitting. |
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