A foam concentrate tank fitted with an internal bladder is a what type of tank?

A foam concentrate tank fitted with an internal bladder is a what type of tank?

• A. Balanced pressure bladder tank
• B. Fixed pressure tank
• C. Inline bladder tank
• D. Dual bladder tank

Answer: (A)

A foam concentrate tank with an internal bladder is a balanced-pressure bladder tank. The internal bladder separates the foam concentrate from the pressurized air on top. The air side is charged to a set pressure, so as foam is drawn from the tank the bladder collapses and pushes concentrate out at a nearly constant discharge pressure. That balance between the air-side pressure and the concentrate side keeps the foam proportioning stable as the tank level changes, which is essential for consistent foam output. This differs from other configurations because the defining feature here is the internal bladder combined with a maintained balance of pressures to achieve steady flow.

A foam concentrate tank with an internal bladder is a balanced-pressure bladder tank.

The internal bladder separates the foam concentrate from the pressurized air on top. The air side is charged to a set pressure, so as foam is drawn from the tank the bladder collapses and pushes concentrate out at a nearly constant discharge pressure. That balance between the air-side pressure and the concentrate side keeps the foam proportioning stable as the tank level changes, which is essential for consistent foam output.

This differs from other configurations because the defining feature here is the internal bladder combined with a maintained balance of pressures to achieve steady flow.