What is the difference between a double-wall and a single-wall tank?

Using the gap between its two shells, a double-wall tank allows temperature control or containment of a possible leak — neither of which a single-wall tank offers.

Is the gap always used for heating?

No. Depending on the design goal it can hold dry insulation, a vacuum, or a path for heating or cooling fluid.

Is this tank also suitable for hazardous chemicals?

Yes. The outer wall acts as an extra safety layer to contain any leak of the inner fluid, making storage safer.

Double-wall stainless steel tank fabrication

Double-wall stainless tanks for temperature control and insulation

A double-wall tank is made of two stainless shells with a gap between them. Depending on the design goal, that gap can hold dry insulation (such as rock wool or polyurethane), a vacuum, or a path for circulating a heating or cooling fluid (a jacket).

Request a quote Specifications

Double-wall stainless steel tank fabrication

Construction

Two stainless walls with a gap

Use of the gap

Insulation, fluid circulation or vacuum

Material

304 or 316 stainless

Temperature control

Connects to an external heating/cooling system

Key features

Temperature control by circulating heating or cooling fluid in the gap

Thermal insulation to cut energy losses

Can serve as a leak-safe tank for hazardous fluids

Suited to processes sensitive to temperature swings

Connects to an external heating or cooling system

Safer than single-wall tanks

Double-wall stainless steel tank fabrication — 1

Technical details

The main uses of these tanks are precise process temperature control (such as holding molten chocolate or pasteurising milk) or safer storage of hazardous fluids; in that case the outer wall acts as an extra safety layer to contain any leak from the inner wall.

Behineh Ab designs and builds double-wall tanks, choosing the insulation or fluid-circulation system to match your process's thermal or safety needs.