your requirements call for pressure vessels and supporting test equipment, Cortest
offers a wide range of related products that form a total capability. System components
include autoclaves - both floor and bench models, high pressure autoclaves, pressure
vessel control panels, heaters, pressure gauges, ancillary equipment, and all
the required connections to complete your state-of-the-art testing system. This
specialized equipment enables you to simulate a broad range of temperature, pressure,
and environmental conditions using both mechanical and electrochemical corrosion
|Floor and Bench-Top Models
Cortest Floor and Bench-Top Autoclave
Testing Systems include everything for testing materials at pressures up to 5000
psi (350 bars) and temperature up to 500°F (300°C). Both Floor and Bench-Top
models are complete self-standing units containing a precision machined bolted
closure containment vessel, heater, pressure gauge, valves, all necessary connections
and a convenient work station.
Vessels are available in 1-, 2-
, and 5-liter capacities. Materials of construction are 316 stainless steel, Hastelloyİ
C-276, Titanium, Inconelİ, and Monelİ. A reliable seal is maintained with a reusable
metal o-ring. Standard vessel ports include gas-in, gas-out, thermocouple, and
pressure gauge/rupture disk. Additional ports for reference electrode, pressure
transducers, etc. are optionally available. Pressure is regulated by independent
sample and vent valves which provide metering as well as positive shut-off.
The system can be operated by means
of a Cortest Model 12.45 Pressure Vessel Control Panel which displays temperature,
pressure, elapsed time and temperature set-point.
Safety features include over temperature
shut-off, over pressure shut-off, rupture disk, and high safety factor vessel
Accessories include reference electrodes,
specimen racks, stirring attachments, auxiliary ports, bottom drains, and gauge
savers. Bench-Top and Floor Model autoclaves are easily connected to a Cortest
Recirculating Test Loop.
High Pressure Autoclaves
handling high pressure autoclave tests, Cortest manufactures a High Pressure Autoclave
capable of pressures up to 20,000 psi and temperatures to 650°F. Vessels
are available in 1-, 2-, and 5-liter standard sizes.
The alloy steel body of this high
pressure laboratory containment vessel is lined with 3/8" thick Hastelloy©
or at your option, 316 stainless steel. All wetted surfaces are Hastelloy©
or 316 SS for added corrosion resistance and durability.
A patented R-CON Connectors takes
the place of a bolted flange assembly. This unique assembly incorporates the strength
and integrity of a welded joint with the versatility of a mechanical joint. Additional
features of the Cortest High Pressure Autoclave include a thermocouple well with
compression fitting, a weep hole to ensure integrity of the liner, and two ports
in the lid with thread and cone fittings. Accessories include a valve panel with
two high pressure valves, pressure gauge, and rupture disk mounted to the vessel
lid; a floor model stand with heating mantle, time proportioning temperature control,
and valve panel; and spare seal rings.
Controls and Instrumentation
Cortest Pressure Vessel
Control Panels provide control, monitoring, and safety shut-off features for conducting
experiments at elevated temperatures and pressures.
The Model 12.45 Pressure Vessel Control Panel provides a digital display of test
pressure from the pressure transducer mounted in the gauge block assembly. User
selectable high and low pressure limits provide over and under pressure shut-off
protection. A convenient elapsed time meter provides a display of test duration.
Included in the 12.45 is the 12.62 over temperature shut-off module. This unit
provides a digital display of temperature from a thermocouple in the test solution,
and provides system shut-off for temperature above the set limit. The accompanying
12.6 temperature control module provides digital display of test temperature,
set point, and actual temperature at a thermocouple mounted within the heating
system. Time proportioning temperature control is standard.
Pressure is controlled by means of metering/shut-off valves plumbed to the gas-in,
gas-out ports. A third port connects to the gauge block assembly, which includes
a pressure gauge with optional gauge saver, a rupture disk, and pressure transducer.
Both pressure and temperature displays have optional connections to provide an
interface with a computer or data logger. Standard controls are compatible with
Type J thermocouples, and have pressure displayed in psi and temperature in °F.
Optionally available are Type K thermocouples, pressure displayed in bars, and
temperature in °C.
PC-Based Data Acquisition
an additional feature, Cortest offers a Windows-based platform for complete data
recording and retrieving on a PC. A modular instrumentation brings compact hardware,
Microsoft Windows software, and standardized recording in a complete package for
a state-of-the-art data acquisition system. Sensor measurements from high-pressure
and high-temperature autoclave experiments are made easy with the NI-Cortest PXI
The PXI-1000 controller offers an
instrumentation technology at an affordable price. The LabVIEW software offers
moreover a very friendly front panel user interface.
When your application requires automated
tests and measurements, the PXI-1000 controller is the perfect choice. With the
large selection of instrument modules and the added benefits of signal conditioning,
measurements on sensors are highly accurate.
The Cortest PC-based data
acquisition system provides a multi-channel recording of various parameters:
temperature, pressure, pH, corrosion rate, conductivity, oxygen, other
sensor on request*.
(* consult our application engineers
for optional sensors.)
High Pressure Electrochemistry
offers two methods for providing electrochemical experimentation at elevated temperature
The first is a High Pressure External
Reference Electrode. This electrode is supplied complete with calibration data
for both KC1 and NaCl internal solutions, and for temperatures from 25°C to
220°C. These non-isothermal external pressure-balanced reference electrodes
accurately measure the working electrode potentials in hostile environments. Measured
potentials at the temperature of interest are easily converted to the standard
hydrogen scale by means of calibration data.
The second method, called the "Wilhelm"
Cell, is used for high pressure (up to 5,000 psi) and very elevated temperature
(up to 500°C).
The "Wilhelm" Cell utilizes a standard
reference electrode at ambient temperature. A micro-metering pump maintains a
small but positive flow of KCl solution past the electrode and into the pressure
vessel. This technique prevents contamination of the electrode, yet adds sufficiently
small quantities of KCl solution into the autoclave to avoid disruption of the
chemical balance in the pressure vessel. The Wilhelm Cell can be provided as a
complete system including autoclave, stand, furnace and controls, or as an easily
added retrofit to existing pressure vessels.
These electrodes mount easily into
any of the auxiliary ports provided in the autoclave lid.
Both electrodes mate easily to potentiostat
and other electrochemical instruments offered by Cortest.
and Stirred System
Recirculating Test Loops (RTL)
Cortest Recirculating Test
Loops are available in 316 stainless steel, Hastelloy© C-276, and Titanium,
with temperatures as high as 900°F and pressures as high as 10,000 psi. These
loops can be used in either the once-through or continuous modes.
portable, modular test loop features a reservoir, regenerative heat exchanger,
cooler, temperature and pressure monitors, sampling ports, pressure relief valves,
pump, and filter. Optional O2 and H2 monitors on the inlet and outlet, and provision
for full computer monitoring of loop performance are also available.
The refreshed fluid permits control
of the concentration of the reaction species such as H2S and CO2
at constant levels over extended periods of time. Correct gas concentrations are
maintained by bubbling gas in through liquid in the reservoir. Concentration of
gas in the high temperature zone is calculated from concentration in the low temperature
for Cortest Autoclaves include a magnetic drive, impeller, motor/pulley assembly,
and motor speed control. An optional tachometer and RPM display is available.
These attachments are rated to 5000 psi and are available in 316 SS, Hastelloyİ,
or Titanium. Internal cooling coils in spiral or serpentine configurations can
also be specified.