Maxitrol M/MR Modulating Valve
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The unique Modulator or Modulator/Regulator valve, the heart of the Selectra® Electronic Gas Flame Modulating System, provides precise, non-fluctuating, instantaneous temperature control without requiring a motor or mechanically driven butterfly valve.
Features:
- No External Mechanical Activation required
- MR Valve (only) performs dual function of modulation and pressure regulation.
- Provides infinite, continuous flame adjustment.
- May be factory installed or added in the field.
- Capacities to 30,000 CFH.
- Available in a wide range of body styles and pipe sizes.
- Designed for use with the Maxitrol Selectra® series of modulation systems - or SC11 Signal Conditioners convert computer/PLC controller signals if standard Maxitrol companion controls are not specified.
Available Options:
M511 ¾” NPT:
- Max. Current Draw: 0.5 (amps)
- Application: Direct Fired (Negative Pressure) Burners
- Function: Increase in voltage corresponds to increase in outlet pressure
- CSA Tested* Inlet Pressure: 1/2 psi (3.4 kPa)
- Inlet Pressure Operating Limits: Upstream pressure regulator setting
- Upstream Pressure Regulator Required: Yes
- Maximum Emergency Exposure: 2.5 psi (17 kPa)
- Output Control Means Standard Factory Setting (if applicable):
- Low Fire: adjustable orifice bypass
- High Fire: upstream pressure regulator setting less pressure drop
- NOTE: 7” w.c. (1.7 kPa) max outlet pressure
- System Used With: Series 14, 24, 44, 94, SC11, DFM
M611 3/4" or 1" NPT:
- Max. Current Draw: 0.6 (amps)
- Application: Direct Fired (Negative Pressure) Burners
- Function: Increase in voltage corresponds to increase in outlet pressure
- CSA Tested* Inlet Pressure: 1/2 psi (3.4 kPa)
- Inlet Pressure Operating Limits: Upstream pressure regulator setting
- Upstream Pressure Regulator Required: Yes
- Maximum Emergency Exposure: 2.5 psi (17 kPa)
- Output Control Means Standard Factory Setting (if applicable):
- Low Fire: adjustable orifice bypass
- High Fire: upstream pressure regulator setting less pressure drop
- NOTE: 7” w.c. (1.7 kPa) max outlet pressure
- System Used With: Series 14, 24, 44, 94, SC11, DFM
MR212D 1-1/4" or 1-1/2" NPT, MR212E 1-1/2" or 2" NPT:
- Max. Current Draw: 0.4 (amps)
- Application: Direct Fired (Negative Pressure) Burners
- Function: Increase in voltage corresponds to increase in outlet pressure
- CSA Tested* Inlet Pressure: 5 psi (34 kPa)
- Inlet Pressure Operating Limits: 5 psi (34 kPa)
- Upstream Pressure Regulator Required: No
- Maximum Emergency Exposure: 12.5 psi (86 kPa)
- Output Control Means Standard Factory Setting (if applicable):
- Low fire: adjustable orifice bypass
- High fire: spring adjustment
- High Fire Setting: Std. model: 2 -5” w.c. (0.50-1.25 kPa) “-2” model: 2” - 5” w.c. (0.50-1.25 kPa) reduced to 0-3” w.c. (0-0.75 kPa)
- System Used With: Series 14, 24, 44, 94, SC11, DFM
Resources:
Capacity Table:
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