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Taco CX42-125 11 Gallon Diaphragm Expansion Tank

Taco CX42-125 11 Gallon Diaphragm Expansion Tank

Brand: Taco SKU: CX42-125
Regular price $2,538.95 USD
Regular price Sale price $2,538.95 USD
Sale Out of Stock - Call to Order
Ships Direct from Distribution β€” Dispatches in 24–48 Hrs
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Performance ParameterEngineering Baseline Value
Manufacturer Part Number (MPN)CX42-125
Model DesignationSeries CX Diaphragm Tank
Capacity11 Gallons

Efficiently manage thermal expansion and protect your hydronic heating system components with the Taco CX42-125 diaphragm expansion tank. This 11-gallon model is engineered to absorb excess pressure caused by fluid temperature fluctuations, preventing relief valve discharge and potential system damage. By integrating the CX42-125 into your setup, you ensure consistent pressure regulation, which is essential for the longevity and reliable operation of residential and commercial heating circuits.

This expansion tank utilizes a heavy-duty internal diaphragm to create a permanent, impenetrable barrier between the system water and the air cushion. This specialized design prevents the absorption of air into the system fluid, effectively mitigating corrosion, oxygen-related issues, and trapped air noise. The robust steel construction ensures the tank handles constant cyclical stresses while maintaining its pre-charged pressure integrity.

Key System Performance Baselines:

  • Durable Separation: High-grade diaphragm construction maintains a strict air-water boundary for long-term system health.
  • Pressure Stability: Effectively manages fluid expansion during thermal cycles to reduce mechanical strain.
  • Corrosion Prevention: Eliminates air-to-water contact to protect boiler components and piping from internal oxidation.

⚠️ Application Profile: Ideal for closed-loop hydronic heating systems, radiant floor heating, and baseboard circulation networks requiring 11-gallon capacity volume support.

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