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Armstrong 572018-009 SX-110V Diaphragm Expansion Tank

Armstrong 572018-009 SX-110V Diaphragm Expansion Tank

Brand: Armstrong SKU: 572018-009
Regular price $1,680.95 USD
Regular price Sale price $1,680.95 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)572018-009
Model DesignationSX-110V

Hydronic heating systems rely on the Armstrong 572018-009 diaphragm expansion tank to safely manage volumetric changes caused by fluctuating fluid temperatures. By integrating this SX-110V model into your loop, you effectively stabilize system pressure, preventing the common fluctuations that lead to premature component wear or nuisance pressure relief valve activations.

This vessel utilizes a flexible internal diaphragm that separates the system fluid from a pre-charged air cushion. As water expands during heating cycles, it pushes against the diaphragm, compressing the air cushion and allowing the system to accommodate the increased volume without causing unsafe pressure spikes or requiring excessive make-up water.

Key System Performance Baselines:

  • Pressure Stability: Maintains consistent charge pressure across fluctuating thermal ranges.
  • Fluid Containment: Prevents system fluid loss through relief equipment.
  • Component Protection: Extends the service life of piping, valves, and heat exchangers.
  • Air Separation: Integrated design minimizes unwanted air accumulation in hydronic circuits.

⚠️ Application Profile: Ideal for residential and commercial closed-loop hydronic heating systems, radiant floor heating, and baseboard circulation networks requiring precise pressure control.

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