American Wheatley Pressure Vessels

American Wheatley supplies hydronic and HVAC accessories, including expansion tanks, air separators, suction diffusers, strainers, and related equipment for heating and cooling systems.

A hydronic system uses water or another suitable liquid to carry heating or cooling energy. Pumps, piping, controls, and accessories work together to maintain circulation and operating conditions.

An expansion tank accommodates liquid-volume changes as temperature varies. Correct sizing helps manage pressure within the intended range of a closed heating or cooling system.

Sizing considers system liquid volume, temperature range, fluid properties, fill pressure, and maximum allowable operating pressure. Nominal tank volume alone does not establish usable expansion capacity.

A flexible membrane separates the system liquid from a gas cushion. Construction and serviceability vary, so confirm the selected tank's design and intended application.

Precharge affects how the tank accepts expanding liquid. It must suit the system design and fill conditions and be checked using the manufacturer's specified procedure.

An air separator helps remove entrained or dissolved air released within a circulating system. Its placement, temperature conditions, flow range, and vent arrangement affect performance.

Air can contribute to noise, unstable circulation, corrosion, and reduced heat transfer. Effective air management supports operation but should be combined with correct filling and system maintenance.

A suction diffuser is a pump-inlet component that combines specified flow-conditioning and straining functions. Confirm the actual product features, pressure loss, and cleaning requirements.

A triple-duty valve combines designated check, balancing, and shutoff functions in one assembly. Suitability depends on the system's flow, pressure, and required operating characteristics.

American Wheatley's listed equipment includes heat exchangers for heating and cooling applications. Selection requires both fluid streams, flow rates, temperatures, pressure limits, and material requirements.

Compatibility depends on the specific tank, seals, and other materials. Glycol concentration also changes fluid properties, which affects expansion calculations, pressure losses, and heat-transfer performance.

No. The intended fluid service, temperature, pressure, and material requirements must match. Verify suitability for the exact application rather than assuming all water tanks are interchangeable.

Inspect tanks, vents, strainers, valves, supports, and connected piping as applicable. Check pressure behavior and follow the product-specific instructions for membrane, precharge, or internal-component service.

A replacement requires checking capacity, ratings, dimensions, connections, and current system conditions. System modifications may change the required tank size or accessory performance.

Contact Industrial Air Services at (615) 641-3100 with the application, system volume or flow, temperatures, pressures, and existing model information to discuss suitable hydronic components.