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  Grundfos MQ3-35 115VAC Domestic Water Booster Pump
Grundfos MQ3-35 115VAC Domestic Water Booster Pump
Click to enlarge
The MQ is a compact water supply system consisting of a pump, motor, pressure tank and controller all combined in one unit. The MQ starts when it senses a minimum flow of 0.8 GPM or a pressure drop to 30 PSI (whichever occurs first). It then monitors the output to keep the pump running until a very low flow rate is reached (approximately 1/2 GPM). The MQ pump has a small built-in pressure tank to ensure that water is readily available from the tap. When water is required the pump automatically starts and no loss of pressure will be felt.

The pump starts automatically when the water is turned on and stops when the flow stops. The MQ is a low-noise pump. The pump is self-priming and has a built-in check valve. The pump is cooled by the pumped water which eliminates the need for a noisy fan. Because the pump is self-cooling you don't need to have free space around the pump for cooling purposes. And because the pump will keep running down to very low flows, this overcomes problems of cycling. The pressure tank incorporated in the pump reduces the number of starts and stops in case of leakage.

Built-in dry-run protection If the pump runs dry it automatically stops. It will attempt to restart for a maximum of 24 hours until water is available from the source. If more than 24 hours pass without water it must be restarted manually. The auto reset function can also be disabled.

Built-in thermal protection If the pump overheats (dry running, overtemperature of liquid, overloaded motor, locked rotor condition) it immediately stops. After a 30 minute cooling-down period, the pump will automatically restart.

    Easy to install
    Easy to operate
    Self-priming down to a depth of 25 ft (8m)
    1" NPT connections
    Anti-cycling feature
    Dry-run protection
    Corrosion-free - suitable for potable water
    User-friendly control panel
    Tough and reliable
    Space-saving - no tank required
    Use almost anywhere - homes, cottages, farms, greenhouses
    Performance range: Flow up to 20 gpm
    Head up to 153 ft
    System pressure: Up to 109 psi
    Inlet pressure: Max. 44 psi
    Suction lift: Max. 26 ft
    Liquid temperature: 32°F to +95°F
    Ambient temperature: 32°F to +113°F
    Nominal voltage range: 1 x 110-120 Volts
    Nominal voltage range: 1 x 220-240 Volts
    Weight: 29 pounds
    Dimensions: 12.6 x 22.4 x 8.7 (in)
    Thermal protection
    Water pressure boosting from city supplies or storage tanks (maximum inlet pressure 45 PSI).
    Water supply from wells (maximum suction lift 25 feet), in private homes, in summer houses, on farms, in market gardens and other large gardens The pump can be used for rain water. All parts in contact with the pumped liquid have been WRc approved.

For more info view:
Grundfos MQ Brochure (1.5Mb)
Grundfos MQ Product Guide (455kb)
Grundfos MQ Installation Guide (260kb)

Part Number: MQ3-35

Price: $459.29

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