Apparatus for Corrosion Studies0 pages

A p p a r a t u s

f o r

C o r r o s i o n

S t u d i e s

Apparatus for Corrosion Studies
Parr Instrument Company has designed a vessel
specifically to be used for long term (up to 4000
hours) corrosion testing of zirconium alloy samples in aqueous solutions near the critical point of
water.
The vessel illustrated is a non-stirred, fixed head
design with a volume of 3.7 liters with a maximum
working temperature and pressure of 450 °C and
275 bar, respectively.
The vessel is heated with three clamp-on style
band heaters. Using an internal multipoint
temperature sensor, the system is capable of

maintaining a uniform temperature of ± 1 °C
over a working zone of 30 cm centered along the
vertical axis of the vessel. A unique control system,
developed around the Parr 4871 Controller, is used
to separately regulate power to the three heaters.
This ensures compliance with tight temperature
uniformity requirements.
Valves are provided on the head of the vessel for
purging with inert gas prior the start the test as
well as periodic sampling of the contents of the
vessel. The controller is equipped to record temperature and pressure data for the duration of the
test.

Parr Instrument Company

211 53rd Street • Moline, Illinois 61265 USA 1-309-762-7716 • 1-800-872-7720 • Fax: 1-309-762-9453
E-mail: parr@parrinst.com • http://www.parrinst.com
Revision 04/25/13