![]() This unit is ideal for pressurizing water from a water storage tank and boosting existing low water pressure. With an average performance of 5GPM at 50PSI, it works well in rainwater harvesting applications. Ideal for boosting from water storage tanks (maximum 30 psi inlet pressure). It is a 1 HP single phase 115V/230V pump with a rated flow of up to 20 GPM at low pressure and a max operating pressure boost of of 60 psi at low flow. This pump has been known to leak and fail if these steps are not followed when installing and and prior to activating the MQ pump. A 30 PSI Pressure Regulating Limiting Valve must be purchased and installed inline prior to the pump when used in situations where existing inbound water pressure is being boosted. Warranty: Warranties are not valid on the MQ 3-45 pump when used to boost pressure without a 30 PSI Pressure Regulating Limiting Valve. Placing a pump in an area that is susceptible to freezing, WILL void the Grundfos warranty. NOTE: Pump must be placed in area that will not freeze, as this will cause damage to the pump. It's construction from corrosion resistant materials means it can be used for clean water. Grundfos MQ is built for trouble free operation. Maintenance: No maintenance of the pump is required. Pressure tank: The built-in pressure tank reduces the number of starts and stops in case of leakages in the pipe system, causing less wear on the pump. Low noise level: Thanks to its hydraulic design and internal cooling, the pump is extremely low-noise, which makes it suitable for indoor as well as outdoor use. If there is no water available, the pump will stop to protect itself and restart automatically when water is available again. ![]() The reset function can be deactivated. The anti-cycling feature prevents the pump from repeatedly starting and stopping in the event of a dripping tap or a minor leak. Restarting will be attempted every 30 minutes for a period of 24 hours. In case of dry running or similar alarm, the pump will stop. This facilitates installation and start-up of the pump and provides more reliable water supply in installations where there is a risk of dry running and leakages in suction hose or pipes.īuilt-in protective functions: If exposed to dry running or excessive temperature, for example in case of seizure or overload, the pump will stop automatically, thus preventing a motor burnout.Īutomatic reset: The pump features an automatic reset function. Provided it is filled with water, the pump is able to lift water from a depth of 26' in less than 5 minutes. Self-priming pump: As it is self-priming, the MQ is able to pump water from a level below the pump. Simple operation: The pump features a user-friendly control panel with ON/OFF button and indicator lights for indication of the operational state of the pump. Installation: Due to its compact design, the pump does not take up much space and is easy to install. In addition, the controller protects the pump in case of faults. The controller ensures that the pump starts automatically when water is consumed and stops automatically when the consumption ceases. ![]() Video: How to change plumbing over from a Grundfos MQ 3-45 to a Grundfos MQ Successor 3-45Ĭomplete system The MQ is a complete, all-in-one unit, incorporating pump, motor, diaphragm tank, pressure and flow sensor, controller and non-return valve. No one in North America has MQ 3-45 stock left, so save yourself the time of calling or checking around.ġ" x 24" Stainless Steel Flex Hose makes connections to existing plumbing easier. It's been 2 years since the MQ 3-45 was discontinued. Its replacement is the MQ Successor 3-45, an "on demand" pump that offers slightly higher flow/pressure performance and better functionality. ![]() **The Grundfos MQ 3-45 has been DISCONTINUED by the manufacturer. Note: The primary difference between the two pumps is that the ESYBOX MINI offers a variable speed drive which provides constant pressure, and you can set the pressure where you want it, where the MQ Successor is a single speed pump that does not allow for pressure adjustments. Both are "on demand" pumps. Enter Coupon Code MINISAVE200 on the checkout page to take advantage of this limited time offer.while supplies last. The MQ Successor 3-45 (115V) pump is currently out of stock until late March, 2024. For a limited time only, we are offering a $200 Off Coupon for the DAB ESYBOX MINI plus FREE Shipping as an alternative. ![]()
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