Solinst is proud to introduce the Model 410 Peristaltic Pump, with
integral forward and reverse flow controller, designed to provide a
new level of low flow control down to 40 ml/min. At the highest
setting, the new Peristaltic Pump can output an impressive 3.5 L/min.
The Solinst Peristaltic Pump is compact and lightweight, ideal for
field use, sampling from shallow wells and surface water, or vapor
sampling. The variable speed, reversible pump has alligator clips for
use with a 12V DC battery.
Description
Designed for field use, the reversible
flow Peristaltic Pump from Solinst is ideal for vapor sampling or water
sampling from shallow wells and surface water. It can be used for vacuum
pumping and for pressure delivery of liquids or gases.
Compact and lightweight, the Solinst
Peristaltic Pump has no vents, grates or openings. This makes it water
resistant, easy to use in the field and easy to maintain and repair. The
metal case is extremely robust and water resistant. A handle and one
easy-access control on the top of the pump make it perfect for field
work. The pump measures 13" x 5" x 6-1/2" (33 cm x 13 cm x 17 cm) and
weighs only 8lbs (3.6 Kg).
The mechanical peristaltic operation uses
rotating rollers to depress the silicon tubing, creating a vacuum, which
displaces any fluid or gas in the chosen direction. It is effective to
depths up to the suction lift limit, which varies with elevation, and
can be as much as 33 ft or 10 m at sea level.
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Power
A 12 ft (4 m) long power cord uses
alligator clips to allow easy connection to almost any 12 volt DC power
source, that can supply at least 3-5 amps at maximum draw, such as auto,
marine or small gel cell battery. It may be connected directly to your
vehicle battery. The variable speed motor is reversible, has an easily
replaced fuse and has reverse polarity protection.
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Sampling Rates
The Solinst Peristaltic Pump has variable
pumping rates and can be fitted with 2 different sizes of silicon
pump-head tubing. With the standard 5/8" OD (16 mm) tubing it delivers
from 120 ml/min to almost 3.5 L/min.
The optional 3/8" OD (10 mm) tubing
adapter kit allows a sample rate up to 900 ml/min and as low as 40
ml/min. This rate is ideal for low-flow sampling and the filling of
small sample bottles.
The Peristaltic Pump's reverse action is
ideal for back flushing when using the Solinst Drive-Point Profiler
(Model 660) or when sampling silty water to unclog a filter.
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Tubing
The standard pump tubing is 5/8" OD (16
mm) silicon, which attaches easily to 1/2" OD (13 mm) down-hole tubing.
An optional conversion kit, which allows the use of 3/8" OD (10 mm)
tubing, is available to allow lower sampling rates. This tubing attaches
easily to 1/4" OD (6 mm) down-hole tubing.
To provide high sample integrity, the
sample comes in contact only with the tubing. The silicon tubing is easy
to clean or replace. The tubing can be replaced between locations,
avoiding the possibility of cross-contamination. To reduce lengthy
decontamination procedures, simply change the inexpensive down-hole
tubing between wells.
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High
Quality VOC Samples
When sampling for volatile
organics using the peristaltic Pump it is advisable to collect samples
in-line, ahead of the pump, to avoid the stripping of volatiles from the
sample.
It is also useful to place
a flow-through cell in-line (see
Model 475), to allow the water to be monitored for
conductivity, pH, temperature or other appropriate parameters. When the
readings stabilize the operator can be sure the sample bottles now
contain fresh formation water.
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Tubing
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