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FLOODMASTER

FLOODMASTER is a product line focused on water leak detection and automatic water supply shutoff for residential, commercial, and light industrial plumbing systems. The brand's catalog includes battery-powered and electric-corded water detectors, as well as brass shutoff valves that integrate leak sensing with motorized or solenoid actuation to stop water flow when a leak is detected. These products are used to protect water heaters, hose-fed appliances such as washing machines and dishwashers, condensate pans, and water mains from water damage. The FLOODMASTER range covers several voltage and connection options: 120V AC and 240V AC shutoff systems, 9V DC battery detectors, and 208V AC models for specific appliance applications. Connection types include 1/2 in and 3/4 in NPT, and some units are certified to NSF 372 for lead-free compliance. Audible alarms range from 83 dB to 110 dB, and sensors are available as rope sensors or magnetized water sensors with lead wires. 3G Electric supplies the FLOODMASTER line globally, offering multiple SKUs with logistics support and quote-based ordering. The product family is organized around two primary functions: detection and shutoff. Detection-only units include wall-mountable alarms that operate on battery or line power, while shutoff systems combine a sensor, a control unit, and a valve actuator to automatically interrupt water flow. The shutoff valves are constructed from brass and are available with different actuator types and connection sizes. For plant engineers and maintenance managers, the key selection criteria are voltage compatibility, connection size and type, sensor type and lead length, alarm output, and environmental suitability such as maximum operating temperature. The FLOODMASTER line addresses common water damage risks in mechanical rooms, utility closets, basements, and appliance connections. Because the products are designed for automatic operation, they reduce the need for manual intervention when a leak occurs. 3G Electric supports the line by stocking a range of SKUs and providing global shipping and logistics coordination. Technical documentation and spec sheets are available for each product to assist with specification and installation planning.

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About FLOODMASTER

FLOODMASTER is a product line focused on water leak detection and automatic water supply shutoff for residential, commercial, and light industrial plumbing systems. The brand's catalog includes battery-powered and electric-corded water detectors, as well as brass shutoff valves that integrate leak sensing with motorized or solenoid actuation to stop water flow when a leak is detected. These products are used to protect water heaters, hose-fed appliances such as washing machines and dishwashers, condensate pans, and water mains from water damage. The FLOODMASTER range covers several voltage and connection options: 120V AC and 240V AC shutoff systems, 9V DC battery detectors, and 208V AC models for specific appliance applications. Connection types include 1/2 in and 3/4 in NPT, and some units are certified to NSF 372 for lead-free compliance. Audible alarms range from 83 dB to 110 dB, and sensors are available as rope sensors or magnetized water sensors with lead wires. 3G Electric supplies the FLOODMASTER line globally, offering multiple SKUs with logistics support and quote-based ordering. The product family is organized around two primary functions: detection and shutoff. Detection-only units include wall-mountable alarms that operate on battery or line power, while shutoff systems combine a sensor, a control unit, and a valve actuator to automatically interrupt water flow. The shutoff valves are constructed from brass and are available with different actuator types and connection sizes. For plant engineers and maintenance managers, the key selection criteria are voltage compatibility, connection size and type, sensor type and lead length, alarm output, and environmental suitability such as maximum operating temperature. The FLOODMASTER line addresses common water damage risks in mechanical rooms, utility closets, basements, and appliance connections. Because the products are designed for automatic operation, they reduce the need for manual intervention when a leak occurs. 3G Electric supports the line by stocking a range of SKUs and providing global shipping and logistics coordination. Technical documentation and spec sheets are available for each product to assist with specification and installation planning.

Common Applications

  • Residential water heater protection — FLOODMASTER 120V AC brass shutoff system with 1/2 in NPT connection and magnetized water sensor
  • Commercial laundry appliance leak detection — FLOODMASTER 208V AC hose-fed appliance shutoff system with 10 ft rope sensor and audio alarm
  • Condensate pan overflow monitoring — FLOODMASTER electric-corded water detector with 83 dB alarm and 12 ft power cord
  • Water main emergency shutoff — FLOODMASTER 120V AC brass shutoff system with NSF 372 certification and 8 ft lead wire sensor
  • Basement or utility room leak alert — FLOODMASTER battery-powered water detector with 110 dB audible alarm and 9V DC operation
  • Water heater supply line with 3/4 in connection — FLOODMASTER 240V AC brass shutoff system with actuator and NPT fittings

Frequently asked questions

Common questions about FLOODMASTER from 3G Electric.

What is the difference between FLOODMASTER water detectors and FLOODMASTER shutoff systems?

FLOODMASTER water detectors are alarm-only devices that sense water and emit an audible alert. They do not control water flow. FLOODMASTER shutoff systems include a sensor, a control unit, and a valve actuator that automatically closes the water supply when a leak is detected. Shutoff systems are typically installed on water heater supply lines, appliance supply lines, or water mains. Detectors are used where automatic shutoff is not required or where a central shutoff valve is not present. Both product types are available in battery-powered and line-powered versions.

What voltage options are available for FLOODMASTER shutoff systems?

FLOODMASTER shutoff systems are available in 120V AC, 208V AC, and 240V AC configurations. The 120V AC models are common for water heater and water main applications. The 208V AC model is specified for hose-fed appliance leak detection. The 240V AC model is used for water heater supply lines with a 3/4 in NPT connection. Voltage selection must match the available power supply at the installation site. Some models include an actuator or receiver box as part of the assembly. Always verify the voltage and connection type against the specific SKU before ordering.

What sensor types does FLOODMASTER offer for leak detection?

FLOODMASTER leak detection systems use either rope sensors or magnetized water sensors. Rope sensors are available in lengths such as 10 ft with a 6 ft lead wire, and they are used in applications where leaks may occur along a path or in multiple locations. Magnetized water sensors have an 8 ft lead wire and are designed to be placed on a flat surface near the potential leak point. The sensor type affects the coverage area and installation method. Rope sensors are typically used for hose-fed appliances, while magnetized sensors are used for water heaters and water mains.

Are FLOODMASTER shutoff systems certified for potable water use?

Some FLOODMASTER shutoff systems are certified to NSF 372, which is the standard for lead-free plumbing products. This certification applies to specific models, such as the water main shutoff system and certain water heater shutoff systems. NSF 372 compliance indicates that the wetted materials meet the lead content requirements of the Safe Drinking Water Act. Not all FLOODMASTER products carry this certification. Check the individual product specifications for NSF 372 or other certifications before specifying for potable water lines.

What is the maximum operating temperature for FLOODMASTER water detectors?

The FLOODMASTER electric-corded water detector for condensate pan overflow detection has a maximum operating temperature of 100°F. This limit applies to the alarm unit and sensor. Battery-powered water detectors do not list a maximum operating temperature in the available specifications, but they are intended for indoor use in areas such as basements and utility rooms. Operating temperatures above the rated maximum may affect sensor accuracy or alarm function. Verify the temperature rating for the specific model before installation in high-temperature environments.

What connection sizes are available for FLOODMASTER shutoff valves?

FLOODMASTER shutoff valves are available with 1/2 in NPT and 3/4 in NPT connections. The 1/2 in NPT models are used for water heater supply lines and some appliance connections. The 3/4 in NPT models are used for water heater supply lines and water mains. Connection type is NPT (National Pipe Thread) for all listed shutoff systems. The valve body material is brass. When selecting a model, match the connection size to the existing piping. Adapters may be required for other thread standards. Always confirm the connection size and type from the product specifications.