Background:
With 125 years of experience working with wood, first as a manufacturer
of barrels and other corrosive materials containment systems, and then
as a water and corrosive materials tank and pipeline manufacturer, Canbar
knows wood. We began as a small cooperage in Waterloo, Ontario Canada
in 1872. We have over many years developed our Wood Stave technology
to include hydro pipelines and Wood Stave Tanks. Canbar Wood Stave Pipelines
and Tanks are installed all over North America and other locations worldwide.
Application
Diversity:
Large dimension Canbar Wood Stave Tanks are used widely by the Pulp
and Paper, Mining and other industries. Such tanks are often 50 ft.
(15m) and more in diameter, with heights frequently
in
excess of 70 ft. (20m). These tanks are used both to contain in-process
liquids and often some difficult to handle (high/low pH, etc.) chemicals.
These tanks typically are located out-of-doors in climates ranging from
tropical to northern Canada.
At
the opposite extreme smaller dimension Canbar Wood Stave Tanks are widely
used in water treatment plants and other indoor liquid chemical containment
applications.
Most large tanks for Pulp and paper, Mining, etc. applications have
no liner. The tank wood wall and floor absorbs water and expands against
the outside steel restraining bands, to create a watertight tank.
Tank Lining:
Other tanks are lined on the inside with PVC liners. Combining the stretchability
of flexible PVC liners with the time proven structural strength, durability
and corrosion resistance of wood, Canbar Wood Stave Tanks are the ideal
solution to the challenge of safely storing aggressive chemicals.
Because
the liner is free forming and flexible it conforms with ease to the
alternating stresses caused by fluctuating chemical levels in the tank.
PVC has good tensile, and elongation strength, as well as tear and chemical
resistance. Its ability to withstand heat and cold is enhanced by the
insu-lating and anti-corrosion properties of wood, providing a stable
environment.
Ease of Installation:
Do you need to install a large tank inside an existing building? Canbar
Wood Stave Tanks are prefabricated and then assembled on site.
The wood staves, PVC covered steel bands and the PVC liner will fit
through normal man-door openings. This allows for installation of a
sizeable tank inside an existing facility, without the need to carry
out major building reconstruction.
Flexible Design:
Canbar Wood Stave Tanks can be custom designed to fit your specific
needs. They are available in a wide range of capacities, from 5,000
litres (1300 U.S. Gal.) to 5 million litres (1.4 million U.S. Gal.)
and more. Pipe connections and flow control appurtenances are easily
accommodated; the liner can project through the wall and fittings to
the flanged connection, providing a continuous barrier.
Safety:
Marrying
the chemical resistance of PVC membrane liners with the corrosion resistance
of wood makes Canbar Wood Stave Tanks doubly safe. Aggressive chemicals
with cycling levels have been stored in Canbar Wood Stave Tanks for
decades without failure. The natural resistance of wood to the corrosive
action of chemicals, used in water treatment facilities, makes it a
safe, secure, second line of defense for the PVC liner. Should the liner
ever be pierced, the Wood Stave Tank provides non-catastrophic containment
until the liner can be repaired or replaced. PVC membrane lined Canbar
Wood Stave Tanks are containment you can count on.
Insulation Advantages:
When dealing with hostile elements and varying temperatures Canbar Wood
Stave Tanks are the ideal solution. The high insulation factor of wood
elimi-nates the need for expensive insulation required by other materials.
In the case of widely fluctuating temperatures, in particular extreme
sub zero conditions, electric strip heating can be used to maintain
required tempera-tures.
The Engineer's Choice:
Consulting and municipal engineers across Canada and the United States
recommend Canbar Wood Stave Tanks. Their confidence is built on Canbar's
record of dependability, durability and the wide range of chemicals
that Wood Stave Tanks can safely contain, including the following: Liquid
Alum, Sodium Hydroxide, Hydrochloric Acid, Sulphuric Acid, Sodium Hypochlorite,
Hydro-fluosilisic Acid, Ferric Chloride and Aqua Ammonia.
