60114093 AERCO Boiler and Water Heater Diaphragm

Average lead time is 7 to 10 days (estimate only). Actual times may vary.

Core Identity & Function

Part Number: 60114093 Component: Diaphragm (gas/water‑pressure regulation) OEM: AERCO / RBI

According to Liberty Supply, this diaphragm:

• Regulates water flow within the heating system

• Maintains internal pressure for stable boiler/water‑heater operation

• Responds dynamically to pressure changes to ensure efficient performance

RBI’s listing confirms it is also used as a gas diaphragm in multiple boiler models, supporting pressure control in the gas train. It fits RBI models 399, 500, 1000, 199, and 750, indicating broad compatibility across mid‑ to high‑capacity hydronic systems.

Midwest Appliance Parts further confirms it as an authentic OEM RBI diaphragm, sold as a model‑specific replacement part.

🧩 Where It’s Used

This diaphragm is commonly found in:

• AERCO commercial boilers

• AERCO commercial water heaters

• RBI boilers using the same gas/water‑pressure platform

Its job is to stabilize pressure and flow, supporting ignition, modulation, and safe operation.