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Taco Series CA Bladder Expansion Tanks

Taco Series CA Captive Air bladder expansion tanks are designed to solve a long-time problem in the hydronics industry. In old style, plain steel tanks, the direct air-to-water interface can allow the air to be absorbed into solution and carried to other parts of the system. The results can be waterlogged tanks, air-bound terminal units, excessive corrosion, inefficient balancing and pump cavitations.

Not so with Taco CA Series Tanks. In this design, the air is held captive on the shell side, with all expanded fluid directed into the bladder (in CA models) or the diaphragm chamber (in the CX Series). Air and water are permanently separated, so no absorption can take place during the system cycle.

Properly sized, selected and located air separation and removal components can provide a stable, tight and closed hydronic system. In most properly-sized “CA” systems, you can reduce the tank size by 80% compared to the old style, plain steel tanks.

Taco Expansion Tanks are used in the following applications, pressure stabilization in water based mechanical systems such as booster installations, boiler systems, and chiller plants. 

If you have questions you can also email your request to us at: Sales@NationalPumpSupply.com