
Maxitrol MR212EH-1616 Valve
The Maxitrol MR212EH-1616 is a professional-grade 2" NPT modulating gas valve and regulator specifically engineered for high-performance direct-fired burners operating under negative pressure conditions. As a cornerstone of the Maxitrol Selectra series, this dual-function component provides simultaneous pressure regulation and high-span modulation, ensuring an infinite and continuous flame adjustment without the need for additional upstream pressure regulators. Designed primarily for LP gas applications, it handles a maximum inlet pressure of 5 PSI while maintaining a precise 10" w.c. outlet range. The high-modulation "EH" configuration offers an expanded modulation span compared to standard models, making it ideal for industrial process heating, large-scale makeup air units, and high-efficiency direct-fired gas systems where maintaining accurate temperature control is critical. Its 13-pound brass body and diaphragm-based construction are built for the rigors of mechanical rooms, ensuring stability even in pull-through air configurations where negative pressure would otherwise compromise standard valve seating.
Key Benefits
- High Span Modulation: Features an "EH" high-modulation coil for a wider control range specifically tuned for liquid propane gas.
- Dual-Function Design: Consolidates modulator and regulator functions into a single 2-inch footprint, simplifying manifold piping and reducing potential leak points.
- Negative Pressure Compatibility: Internally balanced to prevent "creep" or unintended opening in pull-through burners and suction-side applications.
- Selectra System Integration: Fully compatible with Maxitrol electronic gas flame modulation systems for instantaneous, non-fluctuating response.
- 5 PSI Inlet Rating: Robust internal components allow for high inlet gas pressure handling up to 5 PSI (340 mbar) for versatile industrial utility.
Common Questions
Does this valve require a separate upstream regulator?
No, the Maxitrol MR212EH-1616 acts as its own pressure regulator. Provided your inlet pressure does not exceed the 5 PSI maximum, it can typically be piped directly to the supply line.
What is the proper mounting orientation for this regulator?
For optimal performance and to ensure the internal vent limiting (if used) functions correctly, this 2" NPT modulating valve should be installed in an upright horizontal position.
How do I adjust the minimum fire rate?
Low fire adjustments are made via the adjustable bypass. With the Selectra modulation system at minimum voltage, the bypass allows a constant minimum flow to ensure the burner remains lit during low-demand cycles.
This item is not eligible for free shipping.
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.
Original: $1,203.59
-65%$1,203.59
$421.26Maxitrol MR212EH-1616 Valve
The Maxitrol MR212EH-1616 is a professional-grade 2" NPT modulating gas valve and regulator specifically engineered for high-performance direct-fired burners operating under negative pressure conditions. As a cornerstone of the Maxitrol Selectra series, this dual-function component provides simultaneous pressure regulation and high-span modulation, ensuring an infinite and continuous flame adjustment without the need for additional upstream pressure regulators. Designed primarily for LP gas applications, it handles a maximum inlet pressure of 5 PSI while maintaining a precise 10" w.c. outlet range. The high-modulation "EH" configuration offers an expanded modulation span compared to standard models, making it ideal for industrial process heating, large-scale makeup air units, and high-efficiency direct-fired gas systems where maintaining accurate temperature control is critical. Its 13-pound brass body and diaphragm-based construction are built for the rigors of mechanical rooms, ensuring stability even in pull-through air configurations where negative pressure would otherwise compromise standard valve seating.
Key Benefits
- High Span Modulation: Features an "EH" high-modulation coil for a wider control range specifically tuned for liquid propane gas.
- Dual-Function Design: Consolidates modulator and regulator functions into a single 2-inch footprint, simplifying manifold piping and reducing potential leak points.
- Negative Pressure Compatibility: Internally balanced to prevent "creep" or unintended opening in pull-through burners and suction-side applications.
- Selectra System Integration: Fully compatible with Maxitrol electronic gas flame modulation systems for instantaneous, non-fluctuating response.
- 5 PSI Inlet Rating: Robust internal components allow for high inlet gas pressure handling up to 5 PSI (340 mbar) for versatile industrial utility.
Common Questions
Does this valve require a separate upstream regulator?
No, the Maxitrol MR212EH-1616 acts as its own pressure regulator. Provided your inlet pressure does not exceed the 5 PSI maximum, it can typically be piped directly to the supply line.
What is the proper mounting orientation for this regulator?
For optimal performance and to ensure the internal vent limiting (if used) functions correctly, this 2" NPT modulating valve should be installed in an upright horizontal position.
How do I adjust the minimum fire rate?
Low fire adjustments are made via the adjustable bypass. With the Selectra modulation system at minimum voltage, the bypass allows a constant minimum flow to ensure the burner remains lit during low-demand cycles.
This item is not eligible for free shipping.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Maxitrol MR212EH-1616 is a professional-grade 2" NPT modulating gas valve and regulator specifically engineered for high-performance direct-fired burners operating under negative pressure conditions. As a cornerstone of the Maxitrol Selectra series, this dual-function component provides simultaneous pressure regulation and high-span modulation, ensuring an infinite and continuous flame adjustment without the need for additional upstream pressure regulators. Designed primarily for LP gas applications, it handles a maximum inlet pressure of 5 PSI while maintaining a precise 10" w.c. outlet range. The high-modulation "EH" configuration offers an expanded modulation span compared to standard models, making it ideal for industrial process heating, large-scale makeup air units, and high-efficiency direct-fired gas systems where maintaining accurate temperature control is critical. Its 13-pound brass body and diaphragm-based construction are built for the rigors of mechanical rooms, ensuring stability even in pull-through air configurations where negative pressure would otherwise compromise standard valve seating.
Key Benefits
- High Span Modulation: Features an "EH" high-modulation coil for a wider control range specifically tuned for liquid propane gas.
- Dual-Function Design: Consolidates modulator and regulator functions into a single 2-inch footprint, simplifying manifold piping and reducing potential leak points.
- Negative Pressure Compatibility: Internally balanced to prevent "creep" or unintended opening in pull-through burners and suction-side applications.
- Selectra System Integration: Fully compatible with Maxitrol electronic gas flame modulation systems for instantaneous, non-fluctuating response.
- 5 PSI Inlet Rating: Robust internal components allow for high inlet gas pressure handling up to 5 PSI (340 mbar) for versatile industrial utility.
Common Questions
Does this valve require a separate upstream regulator?
No, the Maxitrol MR212EH-1616 acts as its own pressure regulator. Provided your inlet pressure does not exceed the 5 PSI maximum, it can typically be piped directly to the supply line.
What is the proper mounting orientation for this regulator?
For optimal performance and to ensure the internal vent limiting (if used) functions correctly, this 2" NPT modulating valve should be installed in an upright horizontal position.
How do I adjust the minimum fire rate?
Low fire adjustments are made via the adjustable bypass. With the Selectra modulation system at minimum voltage, the bypass allows a constant minimum flow to ensure the burner remains lit during low-demand cycles.
This item is not eligible for free shipping.
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.












