Spider Diffusers

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Spider Diffusers

Spider Diffusers

Engineered spider diffusers ensure precise flame patterns for reliable, high-efficiency boiler system heating performance.

*These Spider Diffusers are compatible with Cleaver-Brooks boilers.

Part # | Diameter | Model | HP Range

134-047
60 inch
CB
125-200 HP

134-049
78 inch
250-350 HP

134-041
96 inch
400-800 HP

In-stock items. Order by 3:00 PM EST for Same-Day Shipping.

*Halmar Corporation offers many Cleaver-Brooks aftermarket parts. Halmar Corporation is not a factory authorized sales representative for Cleaver-Brooks, nor is Halmar Corporation affiliated with Cleaver-Brooks in any way. Cleaver-Brooks is a registered trademark of Cleaver-Brooks, Inc., Thomasville, GA.

Some aftermarket parts may be made by other manufacturers.

Order now (502) 459-9131 Get a Quote

Frequently Asked Questions About Spider Diffusers

What makes a spider diffuser distinct and what is its role?

A spider diffuser features a specialized, multi-spoke radial design specifically engineered to accommodate high-performance gaseous or multi-fuel burner configurations. Its primary role is to split entering fuel streams evenly across multiple precision vectors into the incoming airflow path. This specialized spoke geometry ensures highly precise flame patterns, maximizing thermal heat transfer and minimizing emissions across demanding industrial heating environments.

What happens to boiler operations if a spider diffuser spoke becomes warped or clogged?

If individual fins or spokes on a spider diffuser warp from thermal cycling or become clogged with carbon buildup, the uniform fuel-air mixture path is broken. This imbalance alters your baseline flame shape, which can lead to localized flame impingement against vulnerable furnace walls or tube sheets. Inspecting your burner head assembly and using clean replacement parts prevents uneven combustion profiles from causing catastrophic tube sheet fractures.

Can Halmar supply exact-fit spider diffusers for legacy or specialized industrial heating layouts?

Yes. Halmar maintains a comprehensive manufacturing setup with a focus on high-durability technical components built to exacting specifications. If you are managing a specialized system or an older asset line no longer supported by factory original catalogs, our experienced technical support team can cross-reference your measurements, models, and third-party part tracking metrics to supply a perfect-fit option that restores baseline efficiency boundaries.

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Spider Diffusers