Taco cbx425-125 Vertical Bladder Expansion Tank 112 Gal

Product Description

The TACO cbx425-125 is a vertical bladder-style expansion tank with a 112-gallon (425-liter) capacity, designed for closed-loop hydronic heating and cooling systems. It provides permanent separation of air and water through a removable heavy-duty Butyl rubber bladder housed in a fabricated steel shell. The shell is designed and constructed per ASME Section VIII Division 1. Each unit ships factory pre-charged to job specifications with a standard bladder rating of 125 PSIG. Licensed mechanical contractors and hydronic system specialists are the primary installers for this tank in commercial and industrial applications.

The cbx425-125 is rated for use in hydronic systems as well as non-potable, hydro-pneumatic, and drawdown applications. Its vertical-only installation orientation makes it well suited for mechanical rooms where floor space is limited but overhead clearance is available. The 112-gallon volume accommodates larger system water volumes where thermal expansion control is critical to maintaining stable system pressure and protecting components from overpressure conditions.

Key Features

• 112-gallon (425-liter) tank volume for high-capacity hydronic applications
• Removable heavy-duty Butyl rubber bladder ensures permanent air and water separation
• Fabricated steel shell designed and constructed per ASME Section VIII Division 1
• Factory pre-charged to job specifications at the standard 125 PSIG bladder rating
• Optional 150 PSIG (1,034 kPa) bladder available for higher-pressure system requirements
• Vertical installation only — engineered for upright mounting orientation

Compatibility

Designed for use in hydronic systems and non-potable, hydro-pneumatic, and drawdown applications requiring a large-volume vertical bladder expansion tank.

Installation Notes

Installation must be performed by a qualified mechanical contractor familiar with hydronic system design and local plumbing or mechanical codes. Shut down and depressurize the system before connecting or servicing the tank. This tank is rated for vertical installation only — horizontal mounting is not permitted. Verify that the system's pre-charge pressure matches the tank's factory setting before placing the system back into service.