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2Domestic water supplyBMQEAccessories, BMQEBMQE constant pressure kitDescriptionBMQE controller andpressure sensorRatingSetting range40 to 100 psi(2.8 to 6.9 bar)Productnumber91128636BMQETM05 0732 / TM05 0733BMQE controllerFig. 11 BMQE constant pressure kitDescriptionRatingProductnumberBMQE controllerSetting range40 to 100 psi(2.8 to 6.9 bar)91121987BMQESensorDescriptionRatingProductnumberTM05 0732 1511Pressure sensor forBMQE controller0 to 120 psi(0 to 8.3 bar),1/2” NPT96437852Fig. 12 BMQE controllerDiaphragm tankDescriptionWeight[lbs (kg)]ProductnumberDiaphragm tank, 2 gal. 5 (2.3) 91121984TM05 0733 1511DimensionsFig. 13 Pressure sensor for BMQE controllerGconnectionD[in (mm)]H[in (mm)]3/4” NPT 8 (203) 12.63 (321)SpecificationsDuty rangePre-charge pressure: 40 psi (2.8 bar)Max. operating pressure: 150 psi (10.3 bar)Max. liquid temperature: 200 °F (93 °C)MaterialsTM05 0734 1511Liner: PolypropyleneFig. 14 Diaphragm tankConnection: Lead-free brassTank: Stainless steel, AISI 30418
Domestic water supply33. MQMQProduct introductionThe <strong>Grundfos</strong> MQ is a compact pump and pressureboosting unit, purpose-designed for domestic watersupply and other applications where a compact andreliable, easy-to-install pump is advantageous. TheMQ is a self-priming multistage centrifugal pump; itself-primes from a well depth of down to 26 ft (8 m)within 5 minutes.The MQ is a complete, all-in-one unit, incorporatingpump, motor, diaphragm tank, pressure and flowsensor, controller and check valve.Fig. 15 <strong>Grundfos</strong> MQApplicationsMQ is suitable for pressure boosting of potable waterand rain water for:• water pressure boosting(max. inlet pressure 40 psi (2.8 bar)• water supply from wells(max. suction lift: 26 ft (8 m).Examples of ideal applications for MQ are:• private homes• farms• market gardens and other large gardens.Pumped liquidsThe MQ is suitable for pumping potable water, rainwater, or other clean, thin, non-aggressive liquids notcontaining solid particles or fibers.Features and benefitsComplete systemThe MQ is a compact, "plug and pump" or all-in-onesolution; there is no need for a separate pressure tank,pressure switch, electrical connections, fittings, or anyother separate items. No maintenance of the pump isrequired. Two versions are available to choose from.InstallationInstallation of the MQ is simple and can be done in amatter of minutes, which means greatly reducedinstallation costs.TM01 9873Outlet connnection can be angled up to 5° to fitexisting pipework.Simple operationThe MQ features a user-friendly control panel withON/OFF button and indicator lights for indication of theoperational state of the pump.Compact designCompact, horizontal design fits even where space islimited (outdoor applications require the use of theProtection Cover, sold separately); no space aroundthe pump is required.Self-primingAs it is self-priming, the MQ is able to pump water froma level below the pump. Provided it is filled with water,the pump is able to lift water from a depth of 26 ft (8 m)in less than 5 minutes. This facilitates installation andstart-up of the pump and provides more reliable watersupply in installations where there is a risk of dryrunning and leakages in suction hose or pipes.Built-in protective functionsBuilt-in protective functions; if exposed to dryrunning, excessive temperature, or any overloadcondition the pump will stop automatically, thuspreventing a motor burnout.Automatic resetIn case of dry running or a similar alarm, the pump willstop. Restarting will be attempted every 30 minutes fora period of 24 hours. The reset function can bedeactivated.Low noise levelSuperior hydraulics and internal cooling combinedresult in very quiet operation, which makes it suitablefor many applications.Pressure tankThe built-in pressure tank reduces the number of startsand stops in case of leakages in the pipe system,causing less wear on the pump.How the MQ functionsThe MQ pump has a small built-in pressure tank,sufficient to ensure that water is readily available fromthe tap. When water is required, the pumpautomatically starts. A non-return valve preventsbackflow.The controller ensures that the pump startsautomatically when water is consumed and stopsautomatically when the consumption ceases. Inaddition, the controller protects the pump in case offaults.19
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