Chemical Engineering September 2015 - 83

Water Management 2015 Special Advertising Section
Pumps boast high pressures and easy maintenance
Continued innovation of SEEPEX progressive cavity pumps with Smart Conveying
Technology now allows operating pressures up to 120 psi
EEPEX introduced one-stage Smart Conveying Technology (SCT)
to its progressive cavity pumps (PCPs) in 2008. Since then,
thousands of these pumps have been successfully used in the
chemical, environmental, pulp and paper, shipping, mining, pharmaceutical,
and renewable energy industries, at pressures up to
60 psi. Now, two-stage SCT pumps handle the same applications
and offer all the same benefits as one-stage SCT pumps, but have
higher pressure capabilities: up to 120 psi. They utilize an improved
adjustment mechanism to reach higher pressures. SCT PCPs can
offer low life-cycle costs due to rotor and stator innovations that
allow for reduced maintenance costs, prolonged stator life, and reduced
energy consumption.
Conventional PCPs have a one-piece rotor connected to the
power train by means of a universal joint. To remove or replace the
rotor, the universal joint needs to be dismantled. SCT PCPs incorporate
a smart rotor that is manufactured in two pieces: the rotor
head and the rotor geometry. This allows the rotor geometry - the
portion that wears - to be replaced without disrupting the universal
joint, reducing replacement time and cost.
Conventional PCPs also have rubber stators chemically bonded
inside a metal tube that creates a fixed compression between the
rotor and stator. Typically, this requires the pump to be removed
for maintenance. SCT PCPs, in contrast, do not need to be removed
for maintenance, and the suction and discharge piping can remain
in place. In both one- and two-stage SCT PCPs, the compression
S
SEEPEX progressive cavity
pumps feature external adjustment
of the fit between the rotor and the stator,
for better performance and easier maintenance
fit between the rotor and the stator can be adjusted to achieve the
required pressures, reducing torque and operating requirements
and costs. The SCT stator is manufactured in two pieces covered by
four metal segments. These segments are held in place by adjusting
mechanisms that can be easily removed to replace the stator
halves. The segments can be tightened and readjusted to boost
flow as a pump wears and volumetric efficiency decreases. When
parts on an SCT PCP need replacing (usually after two or three stator
readjustments), only the rubber stator pieces are discarded.
Waste and the cost of disposal are reduced, impacting the overall
carbon footprint and cost of pump ownership. www.seepex.com
Turn your phone into a portable water monitor
Combining portability, power and ease of use, pen-type measuring instruments from
Myron L Company connect wirelessly to Apple devices
M
yron L Company has released three
UltraPen PTBTx Bluetooth-enabled
Pocket Testers for use with Apple iOS 7
and iOS 8 mobile devices. These instruments
are accurate, fast and simple to use
in diverse water quality applications, the
firm says. Features include automatic temperature
compensation; highly stable microprocessor-based
circuitry; user-intuitive
design; and rugged, waterproof housing.
The PTBT1 measures conductivity, total
dissolved solids, salinity, and temperature.
Users may select from three solution types
that model the characteristics of the most
common types of water. The PTBT2 measures
pH and temperature with 1-, 2-, and
3-point calibration options. The PTBT3 instrument
measures ORP and temperature.
The PTBTx Pocket Testers replace the
standard LCD display typical of most pentype
meters with large, easy-to-read characters
via a free app that takes full advantage
of the Apple iOS graphical user interface
(GUI). Communication with the Apple device
is via low-energy Bluetooth (BLE). Wireless
tifiable no matter what mobile device it is
used with. Locations can be programmed
into the app, either selected automatically
via the Apple device's built-in GPS, or set
manually for sampling sites that are too
close together to be reliably distinguished
via GPS.
Each measurement can be saved to the
mobile device's memory. Saved records include
measurement data, sensor settings,
temperature, location, and the name of the
PTBTx device used.
Records can be exported via the mobile
iOS devices provide large, clear displays
for PTBTx portable water monitors
operation makes it easy to move quickly
from sample to sample, and allows the mobile
device to be held safely away from the
liquid samples being measured.
Each PTBTx can be given a unique userprogrammable
name, making it easily idenChemiCal
engineering www.Chemengonline.Com September 2015
device's e-mail function in various file formats:
CSV, MS Excel, or Myron L Company's
proprietary .mlc encrypted format.
Stored measurements are easily sorted,
filtered, e-mailed, or deleted without affecting
other records stored in the device's
memory.
The PTBTx combine accurate measurement
capabilities with the up-to-date GUI
and computing power of a mobile device to
provide a powerful tool for both field and
laboratory applications. www.myronl.com
83
http://www.seepex.com http://www.myronl.com http://www.Chemengonline.Com
Chemical Engineering September 2015

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