NMG & NMD Model Series

Manual Activation Only

SEA-FIRE NovecTM 1230 NMD & NMG Fire Suppression Systems are designed to protect enclosed compartments. Systems are manually actuated by pull cable.  Upon discharge, the extinguishing agent (NovecTM 1230) floods the compartment with an electrically non conductive, noncorrosive vapor that stops the combustion process by physical means. NovecTM 1230 removes heat energy from the fire to the extent that the combustion reaction cannot sustain itself.

SEA-FIRE NovecTM 1230 NMD & NMG extinguishing systems are designed to induce minimum atmospheric concentration of 5.85% within the protected compartment. SEA-FIRE NMD & NMG series extinguishers are equipped with a factory installed pressure switch which is intended for cylinder pressure supervision and may also be used to control other electrical functions (engine shutdown, air exchange equipment, etc.).

Note: There is no automatic operation with NMD or NMG Model Series. For automatic systems click here
Specification Sheet
Approvals

NMG 200

Description
Marine approved 200 ft³ (5.7 m³) of engine compartment volume. NMG models feature corrosion resistant non-refillable cylinders. Installation requirements 145 mm wide x 523 mm height.
See Datasheet 520-073 for more information.
Benefits and Features

Manual Only Discharge (Requires Bi-Directional Cable)
Pressure Gauge
Pressure Switch (System Supervision and Discharge Indication)
Mounting Bracket (Vertical / Horizontal)
Cylinder Status Indicator: 12VDC Light Bulb
Installation, Operation […]


NMG 175

Description
Marine approved 175 ft³ (5.0 m³) of engine compartment volume. NMG models feature corrosion resistant non-refillable cylinders. Installation requirements 145 mm wide x 523 mm height.
See Datasheet 520-073 for more information.
Benefits and Features

Manual Only Discharge (Requires Bi-Directional Cable)
Pressure Gauge
Pressure Switch (System Supervision and Discharge Indication)
Mounting Bracket (Vertical / Horizontal)
Cylinder Status Indicator: 12VDC Light Bulb
Installation, Operation […]


NMG 150

Description
Marine approved 150 ft³ (4.2 m³) of engine compartment volume. NMG models feature corrosion resistant non-refillable cylinders. Installation requirements 145 mm wide x 523 mm height.
See Datasheet 520-073 for more information.
Benefits and Features

Manual Only Discharge (Requires Bi-Directional Cable)
Pressure Gauge
Pressure Switch (System Supervision and Discharge Indication)
Mounting Bracket (Vertical / Horizontal)
Cylinder Status Indicator: 12VDC Light Bulb
Installation, Operation […]


NMG 125

Description
Marine approved 125 ft³ (3.5 m³) of engine compartment volume. NMG models feature corrosion resistant non-refillable cylinders. Installation requirements 145 mm wide x 523 mm height.
See Datasheet 520-073 for more information.
Benefits and Features

Manual Only Discharge (Requires Bi-Directional Cable)
Pressure Gauge
Pressure Switch (System Supervision and Discharge Indication)
Mounting Bracket (Vertical / Horizontal)
Cylinder Status Indicator: 12VDC Light Bulb
Installation, Operation […]


NMG 100

Description
Marine approved 100 ft³ (2.8 m³) of engine compartment volume. NMG models feature corrosion resistant non-refillable cylinders. Installation requirements 132 mm wide x 483 mm height.
See Datasheet 520-049 for more information.
Benefits and Features

Manual Only Discharge (Requires Bi-Directional Cable)
Pressure Gauge
Pressure Switch (System Supervision and Discharge Indication)
Mounting Bracket (Vertical / Horizontal)
Cylinder Status Indicator: 12VDC Light Bulb
Installation, Operation […]


NMG 75

Description
Marine approved 75 ft³ (2.1  m³) of engine compartment volume. NMG models feature corrosion resistant non-refillable cylinders. Installation requirements 127 mm wide x 478 mm height.
See Datasheet 520-025 for more information.
Benefits and Features

Manual Only Discharge (Requires Bi-Directional Cable)
Pressure Gauge
Pressure Switch (System Supervision and Discharge Indication)
Mounting Bracket (Vertical / Horizontal)
Cylinder Status Indicator: 12VDC Light Bulb
Installation, Operation […]


NMG 50

Description
Marine approved 50 ft³ (1.4 m³) of engine compartment volume. NMG models feature corrosion resistant non-refillable cylinders. Installation requirements 127 mm wide x 478 mm height.
See Datasheet 520-025 for more information.
Benefits and Features

Manual Only Discharge (Requires Bi-Directional Cable)
Pressure Gauge
Pressure Switch ( System Supervision and Discharge Indication)
Mounting Bracket (Vertical / Horizontal)
Cylinder Status Indicator: 12 VDC Light […]


NMG 25

Description
Marine approved 25 ft³ (0.7 m³) of engine compartment volume. NMG models feature corrosion resistant non-refillable cylinders. Installation requirements 127 mm wide x 323 mm height.
See Datasheet 520-001 for more information.
Benefits and Features

Manual Only Discharge (Requires Bi-Directional Cable)
Pressure Gauge
Pressure Switch (System Supervision and Discharge Indication)
Mounting Bracket (Vertical / Horizontal)
Cylinder Status Indicator: 12VDC Light Bulb
Installation, Operation […]


NMD1800

Description
Marine approved 1800 ft³ (51.0 m³) of engine compartment volume. NMD models feature corrosion resistant refillable cylinders. Installation requirements 419 mm wide x 1013 mm height.
See Datasheet 520-229 for more information.
Benefits and Features

Manual Only Discharge (Requires Bi-Directional Cable)
Pressure Gauge
Pressure Switch (System Supervision and Discharge Indication)
Mounting Bracket (Vertical / Horizontal or Vertical Only Mounting-Model Dependent)
Cylinder Status […]


NMD1775

Description
Marine approved 1775 ft³ (50.3 m³) of engine compartment volume. NMD models feature corrosion resistant refillable cylinders. Installation requirements 419 mm wide x 1013 mm height.
See Datasheet 520-229 for more information.
Benefits and Features

Manual Only Discharge (Requires Bi-Directional Cable)
Pressure Gauge
Pressure Switch (System Supervision and Discharge Indication)
Mounting Bracket (Vertical / Horizontal or Vertical Only Mounting-Model Dependent)
Cylinder Status […]