When to Choose Bladder vs Diaphragm Tanks

Side-by-side comparison of bladder and diaphragm expansion tanks showing internal components and replacement access for chilled water systems

Bladder and diaphragm expansion tanks both use a flexible barrier to manage system pressure, but they differ in serviceability, lifespan, and failure cost. This guide breaks down when to specify each type, covering construction differences, failure modes, and sizing considerations for data center HVAC and chilled water applications. Mechanical engineers and procurement managers will leave […]