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Transitions and Reducers

Connect your grain bin fan to the aeration system with the right transition or reducer. A&S Ag Sales carries grain bin fan transitions, aeration reducers, conversion adapters, Y transitions, and other fittings for grain aeration systems.

Match the transition or reducer to your fan, opening, and aeration system before ordering. If you're not sure which connection you need, call A&S Ag Sales at (218) 437-8200 and we'll help you narrow down the options.

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Choosing a Grain Bin Transition or Reducer

Transitions and reducers connect pieces of your grain aeration system so air can move from the fan into the bin or aeration ducting. Start by identifying what you're connecting, the connection sizes, and the type of aeration system you're working with.

Part Type What It Does Check Before Ordering
Fan Transition Connects a grain bin fan to the bin or aeration ducting. Fan configuration, connection size, and the aeration system being connected.
Aeration Reducer Adapts between different connection sizes in the aeration system. Measure both connection sizes and verify how the reducer needs to attach.
Y Fan Transition Provides a Y-style transition for the fan and aeration setup. Verify the fan connection, transition configuration, and your existing aeration layout.
Conversion Adapter Adapts an existing connection to a different equipment or aeration-system configuration. Identify the equipment you're converting from and what it needs to connect to.

Measure Before You Order

A transition or reducer needs to match the equipment and aeration system you're connecting. Before ordering, identify your fan or equipment, measure the connection sizes, and note the type of bin or aeration system it needs to connect to.

Not sure which part fits? Call A&S Ag Sales at (218) 437-8200 before ordering and we'll help you narrow down the right connection.

Grain Bin Transition & Reducer FAQs

What does a grain bin fan transition do?

A fan transition provides the connection between a grain bin fan and the bin or aeration ducting, allowing air from the fan to enter the aeration system.

What's the difference between a transition and a reducer?

A transition connects components or changes the connection configuration. A reducer is used when the connection needs to adapt between different sizes. The correct part depends on the equipment and aeration system you're connecting.

How do I know what size reducer I need?

Identify and measure both sides of the connection before ordering. Don't select a reducer from the fan horsepower alone. Connection dimensions and the equipment being joined need to match the reducer.

Can I use a transition with any grain bin fan?

Don't assume every transition fits every fan. Fan style, connection dimensions, flange or mounting configuration, and the aeration system all need to be checked before selecting a transition.

What information should I have before calling A&S?

Have the equipment you're connecting, connection dimensions, and the type of bin or aeration system available. Photos of an existing connection can also be useful when you're trying to identify a replacement configuration.

Need a Grain Bin Fan?

Building or updating the rest of the aeration system? Shop A&S grain bin fans, including axial and centrifugal options for aeration and natural-air drying.

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