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Peristaltic Pump - Sta-Pure® Peristaltic Pump Tubing |
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Long Life Performance
The exceptional longevity
of the STA-PURE® peristaltic
pump tube is extremely beneficial for tangential flow
filtration and other high-pressure applications. At a back
pressure of 60 psi, this pump tube lasts over 1,000 hours
with continuous use at 200 rpm. Under transfer conditions,
it exhibits 18 times the life of silicone rubber tubing, and
nearly twice the life of thermoplastic elastomer tubing with
continuous pumping at 360 rpm. Tube rotation is eliminated,
and the risk of premature tube rupture is significantly
reduced. |
Unique structure produces highest
pressure rating
The unique composite construction of
STA-PURE® tubing
provides superior burst resistance compared to
non-reinforced silicone rubber and thermoplastic
elastomer tubing. With burst strength approaching
360 psi (24 atm), the STA-PURE®
tube can operate at elevated pressures for
filtration, transfer, and in-line steam
sterilization operations. |
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Burst
pressures of STA-PURE®
peristaltic pump tubes at various bores. |
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Virtually
Eliminates Spallation
The
exceptional toughness of the
composite structure of STA-PURE®
tubing provides superior
resistance to cracking and
abrasion — virtually
eliminating spallation. This
means the risk of filter
plugging is significantly
reduced without sacrificing
tube life. Moreover, process
streams stay cleaner,
thereby reducing downstream
filtration requirements. The
end result: increased
efficiency and throughput,
along with reduced downtime.
At left,
Spatualtion debris collected
onto a microporous filter
membrance after
recirculating water for 48
hours through TPE tubing
(left) and
STA-PURE® tube (right). The
thermoplastic elastomer tube
produced particles
of rubber, inorganic filler,
and plasticizer.
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Smooth Bore
Reduces Contamination
The interior
of STA-PURE®
tubing is three times
smoother than thermoplastic
elastomer tubing. During
pumping, thermoplastic
elastomer tubing develops
grooves where the tube
creases, causing rubber
particles to be expelled
into the process stream. The
surface roughness increases
from
1.6 microns to 3.6 microns
in RMS roughness, whereas
the STA-PURE®
tubing shows only a slight
change in surface
characteristics.
At left,
Profilometric scan of
STA-PURE™ tube (top)
compared to
thermoplastic elastomer tube
(bottom), before and after
pumping.
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Key
Features
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Unique composite
material
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Very high hoop
strength
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High resilience:
maintains original shape
over time
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Compatible with
sanitary fittings
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USP Class VI
approved
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Cited in FDA Type II
Material Master File
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Key benefits
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Enables continuous
high-
pressure pumping
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Less downtime from
premature
tube rupture
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Maintains stable
flow rate
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Superior longevity
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Technical data
Material:
Proprietary composite
material: platinum-cured
silicone and expanded PTFE
Burst resistance:
Lasts a minimum of 50 hours
with continuous use @ 600
rpm and back pressure of 60
psi.
Operating pressure:
Up to 100 psi
Durability:
Lasts 18 times longer than
silicone
Sizes:
Available in sizes up to 50
mm ID
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