Maxitrol MT2-9 Mixing Tube

The Maxitrol MT2-9 is a technical-grade 9-inch mixing tube engineered for precise single sensor application in industrial and commercial gas modulation systems. Designed as a critical component for the Maxitrol Selectra Series, this double box mixing tube facilitates a uniform air-gas mixture, which is essential for accurate thermal feedback and stability in direct-fired supply air heating or indirect-fired burner configurations. By streamlining the flow at the duct sensor or inlet air sensor, the MT2-9 eliminates turbulence that typically causes signal drift in high-velocity air streams.

Constructed for integration with Series 14, Series 21, and Series 44 gas control systems, the Maxitrol MT2-9 ensures that the sensing probe receives a representative sample of the discharge air. This mechanical accuracy prevents hunting in the modulating valve and maintains a tight temperature deadband. Field technicians favor the 9-inch length for standard duct depths where a single sensor must be centrally positioned to capture the average temperature profile of the air stream without hitting internal baffles.

Key Benefits

• Optimized Signal Accuracy: Improves gas control system response by creating a stabilized environment for single sensor applications.
• OEM Compatibility: Fully compatible with Maxitrol Selectra modulating valves and amplifiers used in make-up air units and space heating.
• Rugged Construction: Built to withstand high-velocity discharge air and industrial temperature fluctuations without deforming.
• Standardized Fit: The 9" length is ideal for mid-sized ductwork, ensuring the sensor probe reaches the core of the air stream.

Common Questions

Is the MT2-9 compatible with dual sensor systems?
The MT2-9 is specifically designed for single sensor application. For multi-sensor or averaging requirements, different mixing tube configurations or lengths may be required to accommodate the additional sensor volume.

Where should the Maxitrol MT2-9 be installed?
It should be installed in the discharge air duct at a point where the air and gas have had sufficient distance to mix, typically several duct diameters downstream from the burner but before any major branch take-offs.

Does this tube work with Series 94 systems?
Yes, the Maxitrol MT2-9 is compatible with Series 94 commercial/industrial systems, provided the application requires a 9-inch depth for the sensing element.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.