The Forbes Marshall Air Eliminator (FMAE) series are highly reliable, float-type air vents meticulously engineered for liquid systems. Operating on a proven buoyancy principle, these air eliminators automatically release trapped air and non-condensable gases from liquid pipelines while their internal valve mechanism firmly seats to prevent the escape of the primary condensate or water. By eliminating air entrapment, the Forbes Marshall Air Eliminators ensure uninterrupted fluid flow, mitigate pipeline corrosion, and prevent premature equipment degradation.

The FMAE31 offers a highly durable cast iron body optimized for standard applications up to 13.0 bar g and 220°C. For more rigorous operations, the FMAE53 is constructed from heavy-duty cast steel, capable of withstanding extreme body design conditions of up to 32 bar g at 425°C. Both variants feature fully replaceable stainless steel internals, drastically reducing long-term maintenance overhead.

Key Applications of Forbes Marshall Air Eliminators:
The FMAE Series is specifically engineered for liquid systems prone to gas accumulation. Direct applications include hot water lines, chilled water circuits, heating systems, and critical industrial process pipelines.

Variants

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Technical Information Sheet
• FMAE31
• FMAE53