{"product_id":"grundfos-sqflex-helical-rotor-solar-submersible-pump","title":"Grundfos SQFlex Helical Rotor Solar Pump","description":"\u003c!-- TABS --\u003e\u003ch5\u003eDescription\u003c\/h5\u003e\u003cdiv class=\"gs\"\u003e\n\u003cdiv class=\"gs-head\"\u003e\n\u003cdiv class=\"gs-eyebrow\"\u003eGRUNDFOS · SOLAR SUBMERSIBLE PUMP · HELICAL ROTOR\u003c\/div\u003e\n\u003cdiv class=\"gs-title\"\u003eSQFlex Helical Rotor\u003c\/div\u003e\n\u003cdiv class=\"gs-sub\"\u003e3 in positive-displacement solar submersible pumps for high heads and small flow rates. Five models, 3 SQF-2 to 11 SQF-2, with the MSF 3 permanent-magnet motor and built-in AC\/DC inverter, MPPT and dry-run protection. Runs on solar, wind, generator or grid power.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gs-badges\"\u003e\n\u003cdiv class=\"gs-badge\"\u003e6 SQF-3: 4.5 GPM at 820 ft\u003c\/div\u003e\n\u003cdiv class=\"gs-badge\"\u003e11 SQF-2: 10.4 GPM at 345 ft\u003c\/div\u003e\n\u003cdiv class=\"gs-badge\"\u003e30-300 VDC or 90-240 VAC\u003c\/div\u003e\n\u003cdiv class=\"gs-badge\"\u003e1400 W Max Input\u003c\/div\u003e\n\u003cdiv class=\"gs-badge\"\u003e3 in Minimum Well\u003c\/div\u003e\n\u003cdiv class=\"gs-badge\"\u003eBuilt-In MPPT\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gs-sec\"\u003e\n\u003cdiv class=\"gs-h\"\u003eOverview\u003c\/div\u003e\n\u003cdiv class=\"gs-lead\"\u003e\n\u003cp\u003eThe SQFlex system is a reliable water supply system based on renewable energy sources, such as solar and wind energy, and incorporates an SQF submersible pump. Very flexible as to its energy supply and performance, the SQFlex system can be combined and adapted to any need according to the conditions of the installation site. Being designed for continuous as well as intermittent operation, it is suitable for water supply in remote locations.\u003c\/p\u003e\n\u003cp\u003eThe SQF pump range comprises two pump technologies: the helical rotor pump (3 in) for high heads and small flow rates, and the centrifugal pump (3 in and 4 in) for low heads and large flow rates. \u003cstrong\u003eThis listing covers: Helical rotor pump (3 in) for high heads and small flow rates.\u003c\/strong\u003e All pump types are in stainless steel AISI 304.\u003c\/p\u003e\n\u003cp\u003eThe motor is developed specifically for the SQFlex system and designed according to the permanent-magnet principle with a built-in electronic unit. The MSF 3 motor range comprises four maximum power input (P1) ratings — 300 W, 900 W, 1400 W and 2500 W — with a speed range of 500-3600 rpm or 3000-10700 rpm depending on motor size, power input and load. The motor has three internal limitations: maximum power input (P1), maximum current of 8.4 A or 12 A, and maximum speed. The pump delivers its maximum performance when one of those limitations is reached.\u003c\/p\u003e\n\u003cp\u003eIn terms of power supply the motor is flexible: it can be supplied with either DC or AC voltage — 30-300 VDC (100-300 VDC for the 2500 W motor) or 1 x 90-240 V, 50\/60 Hz. The SQFlex system can also be powered by batteries with a 30-300 VDC supply and a maximum current of 8.4 A; DC operation is limited to the highest possible power at that voltage — for example, 48 VDC gives a limiting maximum power of 403 W.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#E1E3E6;border-left:3px solid #B8BDC4;padding:8px 14px;font-size:11.5px;color:#4A4A4F;margin-top:14px;line-height:1.5\"\u003eGenuine Grundfos equipment, factory-new in original packaging — sold and supported by Watermain Supply, an independent industrial supplier.\u003c\/div\u003e\n\u003cdiv class=\"gs-sec\"\u003e\n\u003cdiv class=\"gs-h\"\u003ePerformance — Will It Do What You Need?\u003c\/div\u003e\n\u003cp style=\"font-size:13.5px;margin-bottom:10px\"\u003eFind your model, then your \u003cstrong\u003etotal head\u003c\/strong\u003e — depth to pumping water level plus elevation to the tank plus pipe friction. The figure is the most water the pump delivers at that head with full power available. With a smaller array or in weaker sun the pump keeps running and delivers less — that is what the built-in MPPT is for.\u003c\/p\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\u003ctable class=\"gs-tbl\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eMotor max input P1\u003c\/th\u003e\n\u003cth\u003eTotal head - ft\u003c\/th\u003e\n\u003cth\u003eHead - psi\u003c\/th\u003e\n\u003cth\u003eMax flow - GPM\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e3 SQF-2\u003c\/td\u003e\n\u003ctd rowspan=\"3\"\u003e1400 W\u003c\/td\u003e\n\u003ctd\u003e395\u003c\/td\u003e\n\u003ctd\u003e171\u003c\/td\u003e\n\u003ctd\u003e2.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e195\u003c\/td\u003e\n\u003ctd\u003e85\u003c\/td\u003e\n\u003ctd\u003e2.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e35\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e2.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e3 SQF-3\u003c\/td\u003e\n\u003ctd rowspan=\"3\"\u003e1400 W\u003c\/td\u003e\n\u003ctd\u003e655\u003c\/td\u003e\n\u003ctd\u003e284\u003c\/td\u003e\n\u003ctd\u003e2.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e460\u003c\/td\u003e\n\u003ctd\u003e199\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e260\u003c\/td\u003e\n\u003ctd\u003e113\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e6 SQF-2\u003c\/td\u003e\n\u003ctd rowspan=\"3\"\u003e1400 W\u003c\/td\u003e\n\u003ctd\u003e395\u003c\/td\u003e\n\u003ctd\u003e171\u003c\/td\u003e\n\u003ctd\u003e5.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e230\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e5.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e35\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e5.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e6 SQF-3\u003c\/td\u003e\n\u003ctd rowspan=\"3\"\u003e1400 W\u003c\/td\u003e\n\u003ctd\u003e820\u003c\/td\u003e\n\u003ctd\u003e355\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e560\u003c\/td\u003e\n\u003ctd\u003e243\u003c\/td\u003e\n\u003ctd\u003e5.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e295\u003c\/td\u003e\n\u003ctd\u003e128\u003c\/td\u003e\n\u003ctd\u003e5.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e11 SQF-2\u003c\/td\u003e\n\u003ctd rowspan=\"3\"\u003e1400 W\u003c\/td\u003e\n\u003ctd\u003e345\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003ctd\u003e10.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e230\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003e12.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp style=\"font-size:12.5px;color:#9B9EA3;margin-top:8px;line-height:1.55\"\u003ePoints read from the vector performance-range chart in the Grundfos SQFlex range brochure (DN000993, 04\/2021), which plots each model at its maximum input power; flows are read along the chart boundary at the heads Grundfos publishes and rounded down. Head is what the pump adds, in feet and the psi equivalent. Flow against array wattage at each head is plotted model by model in the Grundfos SQFlex data booklet 92552657, North America 60 Hz, 07\/2021 — all curves show mean values, typical deviation is ±15 %, measured with water at 68 °F, and they must not be used as guarantee curves. Daily output depends on site, array size and sun hours: email us your total head, daily water requirement and location and we will size the pump and array with the Grundfos sizing tool.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gs-sec\"\u003e\n\u003cdiv class=\"gs-h\"\u003eModels, Voltage \u0026amp; Phase\u003c\/div\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\u003ctable class=\"gs-tbl\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eMax input P1\u003c\/th\u003e\n\u003cth\u003eMax current\u003c\/th\u003e\n\u003cth\u003eDC supply\u003c\/th\u003e\n\u003cth\u003eAC supply\u003c\/th\u003e\n\u003cth\u003eSpeed\u003c\/th\u003e\n\u003cth\u003eDischarge\u003c\/th\u003e\n\u003cth\u003eMin. well\u003c\/th\u003e\n\u003cth\u003ePart No.\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 SQF-2\u003c\/td\u003e\n\u003ctd\u003e1400 W\u003c\/td\u003e\n\u003ctd\u003e8.4 A\u003c\/td\u003e\n\u003ctd\u003e30-300 VDC\u003c\/td\u003e\n\u003ctd\u003e1 x 90-240 VAC\u003c\/td\u003e\n\u003ctd\u003e500-3600 rpm\u003c\/td\u003e\n\u003ctd\u003e1 in NPT\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003e95027332\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 SQF-3\u003c\/td\u003e\n\u003ctd\u003e1400 W\u003c\/td\u003e\n\u003ctd\u003e8.4 A\u003c\/td\u003e\n\u003ctd\u003e30-300 VDC\u003c\/td\u003e\n\u003ctd\u003e1 x 90-240 VAC\u003c\/td\u003e\n\u003ctd\u003e500-3600 rpm\u003c\/td\u003e\n\u003ctd\u003e1 in NPT\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003e95027333\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 SQF-2\u003c\/td\u003e\n\u003ctd\u003e1400 W\u003c\/td\u003e\n\u003ctd\u003e8.4 A\u003c\/td\u003e\n\u003ctd\u003e30-300 VDC\u003c\/td\u003e\n\u003ctd\u003e1 x 90-240 VAC\u003c\/td\u003e\n\u003ctd\u003e500-3600 rpm\u003c\/td\u003e\n\u003ctd\u003e1 in NPT\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003e95027334\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 SQF-3\u003c\/td\u003e\n\u003ctd\u003e1400 W\u003c\/td\u003e\n\u003ctd\u003e8.4 A\u003c\/td\u003e\n\u003ctd\u003e30-300 VDC\u003c\/td\u003e\n\u003ctd\u003e1 x 90-240 VAC\u003c\/td\u003e\n\u003ctd\u003e500-3600 rpm\u003c\/td\u003e\n\u003ctd\u003e1 in NPT\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003e96834840\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11 SQF-2\u003c\/td\u003e\n\u003ctd\u003e1400 W\u003c\/td\u003e\n\u003ctd\u003e8.4 A\u003c\/td\u003e\n\u003ctd\u003e30-300 VDC\u003c\/td\u003e\n\u003ctd\u003e1 x 90-240 VAC\u003c\/td\u003e\n\u003ctd\u003e500-3600 rpm\u003c\/td\u003e\n\u003ctd\u003e1-1\/4 in NPT\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003e95027335\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp style=\"font-size:12.5px;color:#9B9EA3;margin-top:8px;line-height:1.55\"\u003eEvery model takes either supply on the same two wires: 30-300 VDC or single-phase 1 x 90-240 VAC, -10 % \/ +6 %, 50\/60 Hz, plus protective earth. The integrated electronic unit handles both, so it makes no difference how + and - or N and L are connected. Supplied as a complete pump and motor with a 6 ft 7 in motor cable fitted with the water level electrode and socket, and a cable guard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gs-sec\"\u003e\n\u003cdiv class=\"gs-h\"\u003eThe SQFlex Range at a Glance\u003c\/div\u003e\n\u003cp style=\"font-size:13.5px;margin-bottom:10px\"\u003eAll 16 SQFlex complete pumps, so you can see where your duty sits before choosing. Start with the \u003cstrong\u003ewell diameter\u003c\/strong\u003e, then the \u003cstrong\u003ehead\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\u003ctable class=\"gs-tbl\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003ePump type\u003c\/th\u003e\n\u003cth\u003eMin. well\u003c\/th\u003e\n\u003cth\u003eMotor max input P1\u003c\/th\u003e\n\u003cth\u003eHighest charted head - ft\u003c\/th\u003e\n\u003cth\u003eFlow at lowest charted head - GPM\u003c\/th\u003e\n\u003cth\u003eWhere to order\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 SQF-2\u003c\/td\u003e\n\u003ctd\u003e3 in helical rotor\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003e1400 W\u003c\/td\u003e\n\u003ctd\u003e395\u003c\/td\u003e\n\u003ctd\u003e2.6\u003c\/td\u003e\n\u003ctd\u003eThis page\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 SQF-3\u003c\/td\u003e\n\u003ctd\u003e3 in helical rotor\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003e1400 W\u003c\/td\u003e\n\u003ctd\u003e655\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eThis page\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 SQF-2\u003c\/td\u003e\n\u003ctd\u003e3 in helical rotor\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003e1400 W\u003c\/td\u003e\n\u003ctd\u003e395\u003c\/td\u003e\n\u003ctd\u003e5.7\u003c\/td\u003e\n\u003ctd\u003eThis page\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 SQF-3\u003c\/td\u003e\n\u003ctd\u003e3 in helical rotor\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003e1400 W\u003c\/td\u003e\n\u003ctd\u003e820\u003c\/td\u003e\n\u003ctd\u003e5.8\u003c\/td\u003e\n\u003ctd\u003eThis page\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11 SQF-2\u003c\/td\u003e\n\u003ctd\u003e3 in helical rotor\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003e1400 W\u003c\/td\u003e\n\u003ctd\u003e345\u003c\/td\u003e\n\u003ctd\u003e12.7\u003c\/td\u003e\n\u003ctd\u003eThis page\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 SQF-80\u003c\/td\u003e\n\u003ctd\u003e3 in high-speed centrifugal\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003e300 W\u003c\/td\u003e\n\u003ctd\u003e130\u003c\/td\u003e\n\u003ctd\u003e9.5\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/grundfos-sqflex-high-speed-solar-submersible-pump\"\u003eSQFlex High-Speed listing\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 SQF-200\u003c\/td\u003e\n\u003ctd\u003e3 in high-speed centrifugal\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003e1000 W\u003c\/td\u003e\n\u003ctd\u003e230\u003c\/td\u003e\n\u003ctd\u003e16.5\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/grundfos-sqflex-high-speed-solar-submersible-pump\"\u003eSQFlex High-Speed listing\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e15 SQF-290\u003c\/td\u003e\n\u003ctd\u003e3 in high-speed centrifugal\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003e2500 W\u003c\/td\u003e\n\u003ctd\u003e525\u003c\/td\u003e\n\u003ctd\u003e19.5\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/grundfos-sqflex-high-speed-solar-submersible-pump\"\u003eSQFlex High-Speed listing\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e22 SQF-220\u003c\/td\u003e\n\u003ctd\u003e3 in high-speed centrifugal\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003e2500 W\u003c\/td\u003e\n\u003ctd\u003e330\u003c\/td\u003e\n\u003ctd\u003e34.5\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/grundfos-sqflex-high-speed-solar-submersible-pump\"\u003eSQFlex High-Speed listing\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30 SQF-160\u003c\/td\u003e\n\u003ctd\u003e3 in high-speed centrifugal\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003e2500 W\u003c\/td\u003e\n\u003ctd\u003e260\u003c\/td\u003e\n\u003ctd\u003e45\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/grundfos-sqflex-high-speed-solar-submersible-pump\"\u003eSQFlex High-Speed listing\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e16 SQF-10\u003c\/td\u003e\n\u003ctd\u003e4 in centrifugal\u003c\/td\u003e\n\u003ctd\u003e4 in\u003c\/td\u003e\n\u003ctd\u003e1400 W\u003c\/td\u003e\n\u003ctd\u003e230\u003c\/td\u003e\n\u003ctd\u003e21.5\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/grundfos-sqflex-4-in-centrifugal-solar-submersible-pump\"\u003eSQFlex 4 in listing\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 SQF-3\u003c\/td\u003e\n\u003ctd\u003e4 in centrifugal\u003c\/td\u003e\n\u003ctd\u003e4 in\u003c\/td\u003e\n\u003ctd\u003e1400 W\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e39\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/grundfos-sqflex-4-in-centrifugal-solar-submersible-pump\"\u003eSQFlex 4 in listing\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 SQF-7\u003c\/td\u003e\n\u003ctd\u003e4 in centrifugal\u003c\/td\u003e\n\u003ctd\u003e4 in\u003c\/td\u003e\n\u003ctd\u003e1400 W\u003c\/td\u003e\n\u003ctd\u003e185\u003c\/td\u003e\n\u003ctd\u003e39.5\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/grundfos-sqflex-4-in-centrifugal-solar-submersible-pump\"\u003eSQFlex 4 in listing\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e35 SQF-4\u003c\/td\u003e\n\u003ctd\u003e4 in centrifugal\u003c\/td\u003e\n\u003ctd\u003e4 in\u003c\/td\u003e\n\u003ctd\u003e1400 W\u003c\/td\u003e\n\u003ctd\u003e115\u003c\/td\u003e\n\u003ctd\u003e57\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/grundfos-sqflex-4-in-centrifugal-solar-submersible-pump\"\u003eSQFlex 4 in listing\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e45 SQF-3\u003c\/td\u003e\n\u003ctd\u003e4 in centrifugal\u003c\/td\u003e\n\u003ctd\u003e4 in\u003c\/td\u003e\n\u003ctd\u003e1400 W\u003c\/td\u003e\n\u003ctd\u003e80\u003c\/td\u003e\n\u003ctd\u003e74.5\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/grundfos-sqflex-4-in-centrifugal-solar-submersible-pump\"\u003eSQFlex 4 in listing\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e75 SQF-3\u003c\/td\u003e\n\u003ctd\u003e4 in centrifugal\u003c\/td\u003e\n\u003ctd\u003e4 in\u003c\/td\u003e\n\u003ctd\u003e1400 W\u003c\/td\u003e\n\u003ctd\u003e80\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/grundfos-sqflex-4-in-centrifugal-solar-submersible-pump\"\u003eSQFlex 4 in listing\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp style=\"font-size:12.5px;color:#9B9EA3;margin-top:8px;line-height:1.55\"\u003eHead and flow are the two ends of each model on the Grundfos range chart, not a single duty point — use the performance table above for the pump on this page and the table on the sibling listing for the others. Replacement pump ends for 3, 6, 11, 35, 45 and 75 SQF are on the \u003ca href=\"\/products\/grundfos-sqflex-solar-pump-hydraulic-end\"\u003eSQFlex hydraulic end listing\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gs-sec\"\u003e\n\u003cdiv class=\"gs-h\"\u003eKey Features\u003c\/div\u003e\n\u003cdiv class=\"gs-lead\"\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry-running protection\u003c\/strong\u003e — a water level electrode on the motor cable, 12 to 24 in above the pump depending on pump type, measures contact resistance to the motor sleeve through the water. When the water level falls below the electrode the pump stops, and it restarts automatically five minutes after the level is back above it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Power Point Tracking (MPPT)\u003c\/strong\u003e — the built-in microprocessor continuously optimizes the pump duty point to the input power available. MPPT is available for pumps connected to DC supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide voltage range\u003c\/strong\u003e — operates at any voltage from 30-300 VDC (100-300 VDC for 2500 W) or 90-240 VAC, which makes installation and sizing easy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh efficiency\u003c\/strong\u003e — the MSF 3 is a permanent-magnet motor with higher efficiency across the power range than a conventional asynchronous motor, helped by a segmented stator, and with high locked-rotor torque even at low power supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver- and undervoltage protection\u003c\/strong\u003e — the pump stops if the voltage falls outside the permissible range and restarts automatically when it returns. No extra protection relay is needed. The motor is protected against supply transients to EN\/IEC 61000-4-5 (6 kV); in areas with high lightning intensity use external lightning protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverload protection\u003c\/strong\u003e — above the upper load limit the motor compensates by reducing speed; below minimum speed it stops, stays stopped for 30 seconds and restarts automatically. No extra motor protection is required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOvertemperature protection\u003c\/strong\u003e — a temperature sensor in the electronic unit stops the motor above 185 °F and restarts it once the temperature drops to 165 °F.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliability\u003c\/strong\u003e — carbon \/ ceramic bearings, excellent starting capabilities and the protection functions above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple installation and service\u003c\/strong\u003e — low weight, no motor starter or starter box, and a modular pump and motor design. The cable and the end cover with socket are fitted with screws so they can be replaced.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gs-sec\"\u003e\n\u003cdiv class=\"gs-h\"\u003eSpecifications\u003c\/div\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\u003ctable class=\"gs-tbl\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply to pump\u003c\/td\u003e\n\u003ctd\u003e30-300 VDC, PE (100-300 VDC for the 2500 W motor) or 1 x 90-240 V -10 % \/ +6 %, 50\/60 Hz, PE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003eMSF 3 permanent-magnet motor with built-in electronic unit, stainless steel AISI 304\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower factor\u003c\/td\u003e\n\u003ctd\u003ePF = 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRun-up time\u003c\/td\u003e\n\u003ctd\u003eDepends on the energy source\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStart \/ stop\u003c\/td\u003e\n\u003ctd\u003eNo limitation to the number of starts and stops per hour\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure class\u003c\/td\u003e\n\u003ctd\u003eIP68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor protection\u003c\/td\u003e\n\u003ctd\u003eBuilt into the pump: dry running by water level electrode, over- and undervoltage, overload, overtemperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReset function\u003c\/td\u003e\n\u003ctd\u003eThrough the control unit, or by disconnecting the power supply for 1 minute\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePumped liquids\u003c\/td\u003e\n\u003ctd\u003eThin, clean, non-aggressive and non-explosive liquids without solid or long-fibred particles. pH 5 to 9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLiquid temperature\u003c\/td\u003e\n\u003ctd\u003e32 °F to 104 °F. The pump can run at free convection (about 0 ft\/s past the motor) at maximum 104 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSand content\u003c\/td\u003e\n\u003ctd\u003eMaximum 50 ppm. A higher sand content considerably reduces the lifespan of the pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductivity\u003c\/td\u003e\n\u003ctd\u003eAt least 70 microsiemens per cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation depth\u003c\/td\u003e\n\u003ctd\u003eThe pump must be completely submerged. Maximum 500 ft below the static water table (220 psi)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation position\u003c\/td\u003e\n\u003ctd\u003eVertical or horizontal. Horizontal installation requires the water level electrode to sit at least 12 to 24 in above the pump so the dry-running protection works\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuction strainer\u003c\/td\u003e\n\u003ctd\u003eHoles of 0.09 in diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor cable\u003c\/td\u003e\n\u003ctd\u003e6 ft 7 in with water level electrode and socket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperation through generator\u003c\/td\u003e\n\u003ctd\u003eGenerator output equal to motor input power P1 plus 50 %, and at least P1 plus 10 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth-leakage circuit breaker\u003c\/td\u003e\n\u003ctd\u003eWhere an ELCB is used as additional protection it must trip when earth fault currents with pulsating DC content occur\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRadio noise\u003c\/td\u003e\n\u003ctd\u003eComplies with EMC Directive 89\/336\/EEC; tested to EN 61000-6-2 and EN 61000-6-3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSound pressure level\u003c\/td\u003e\n\u003ctd\u003eLower than the limiting values stated in the EC Machinery Directive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMarking\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gs-sec\"\u003e\n\u003cdiv class=\"gs-h\"\u003eDimensions \u0026amp; Weights\u003c\/div\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\u003ctable class=\"gs-tbl\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eLength L\u003c\/th\u003e\n\u003cth\u003eDiameter B\u003c\/th\u003e\n\u003cth\u003eDischarge S\u003c\/th\u003e\n\u003cth\u003eMinimum borehole\u003c\/th\u003e\n\u003cth\u003eNet weight, complete pump\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 SQF-2\u003c\/td\u003e\n\u003ctd\u003e47 in (1185 mm)\u003c\/td\u003e\n\u003ctd\u003e2.9 in\u003c\/td\u003e\n\u003ctd\u003e1 in NPT\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003e20.7 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 SQF-3\u003c\/td\u003e\n\u003ctd\u003e49 in (1247 mm)\u003c\/td\u003e\n\u003ctd\u003e2.9 in\u003c\/td\u003e\n\u003ctd\u003e1 in NPT\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003e21.4 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 SQF-2\u003c\/td\u003e\n\u003ctd\u003e49 in (1247 mm)\u003c\/td\u003e\n\u003ctd\u003e2.9 in\u003c\/td\u003e\n\u003ctd\u003e1 in NPT\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003e17.4 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 SQF-3\u003c\/td\u003e\n\u003ctd\u003e51 in (1295 mm)\u003c\/td\u003e\n\u003ctd\u003e2.9 in\u003c\/td\u003e\n\u003ctd\u003e1 in NPT\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003e18.0 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11 SQF-2\u003c\/td\u003e\n\u003ctd\u003e49 in (1247 mm)\u003c\/td\u003e\n\u003ctd\u003e2.9 in\u003c\/td\u003e\n\u003ctd\u003e1-1\/4 in NPT\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003e18.0 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp style=\"font-size:12.5px;color:#9B9EA3;margin-top:8px;line-height:1.55\"\u003eFrom the Grundfos SQFlex data booklet 92552657, North America 60 Hz, 07\/2021. Net weight is for the complete pump with motor. The data booklet prints the 6 SQF-3 length as 1295 mm; the inch figure shown is converted from it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gs-sec\"\u003e\n\u003cdiv class=\"gs-h\"\u003eMaterials\u003c\/div\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\u003ctable class=\"gs-tbl\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePump component\u003c\/th\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003cth\u003eEN\/DIN\u003c\/th\u003e\n\u003cth\u003eAISI\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve casing, valve cup, valve guide\u003c\/td\u003e\n\u003ctd\u003ePolyamide\u003c\/td\u003e\n\u003ctd\u003e–\u003c\/td\u003e\n\u003ctd\u003e–\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutlet chamber\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003ctd\u003e1.4301\u003c\/td\u003e\n\u003ctd\u003e304\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eO-ring\u003c\/td\u003e\n\u003ctd\u003eNBR\u003c\/td\u003e\n\u003ctd\u003e–\u003c\/td\u003e\n\u003ctd\u003e–\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve seat\u003c\/td\u003e\n\u003ctd\u003eSilicone (LSR)\u003c\/td\u003e\n\u003ctd\u003e–\u003c\/td\u003e\n\u003ctd\u003e–\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpper flange\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003ctd\u003e1.4401\u003c\/td\u003e\n\u003ctd\u003e316\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRetaining ring\u003c\/td\u003e\n\u003ctd\u003eStainless spring steel\u003c\/td\u003e\n\u003ctd\u003e1.4301\u003c\/td\u003e\n\u003ctd\u003e304\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePump stator\u003c\/td\u003e\n\u003ctd\u003eStainless steel \/ EPDM\u003c\/td\u003e\n\u003ctd\u003e1.4301\u003c\/td\u003e\n\u003ctd\u003e304\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePump rotor\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003ctd\u003e1.4401\u003c\/td\u003e\n\u003ctd\u003e316\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTorsion shaft\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003ctd\u003e1.4401\u003c\/td\u003e\n\u003ctd\u003e316\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve spring\u003c\/td\u003e\n\u003ctd\u003eStainless spring steel\u003c\/td\u003e\n\u003ctd\u003e1.4310\u003c\/td\u003e\n\u003ctd\u003e310\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSleeve\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003ctd\u003e1.4301\u003c\/td\u003e\n\u003ctd\u003e304\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSand slinger\u003c\/td\u003e\n\u003ctd\u003eNBR\u003c\/td\u003e\n\u003ctd\u003e–\u003c\/td\u003e\n\u003ctd\u003e–\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable guard\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003ctd\u003e1.4301\u003c\/td\u003e\n\u003ctd\u003e304\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScrews for cable guard\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003ctd\u003e1.4401\u003c\/td\u003e\n\u003ctd\u003e316\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp style=\"font-size:12.5px;color:#9B9EA3;margin-top:8px;line-height:1.55\"\u003eHelical rotor pump, example 6 SQF-2.\u003c\/p\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\u003ctable class=\"gs-tbl\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMotor component\u003c\/th\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003cth\u003eEN\/DIN\u003c\/th\u003e\n\u003cth\u003eAISI\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eStator with sleeve, rotor\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003ctd\u003e1.4301\u003c\/td\u003e\n\u003ctd\u003e304\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStop ring\u003c\/td\u003e\n\u003ctd\u003ePP\u003c\/td\u003e\n\u003ctd\u003e–\u003c\/td\u003e\n\u003ctd\u003e–\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShaft end\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003ctd\u003e1.4401\u003c\/td\u003e\n\u003ctd\u003e316\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThrust bearing, stationary\u003c\/td\u003e\n\u003ctd\u003eStainless steel \/ carbon\u003c\/td\u003e\n\u003ctd\u003e1.4401\u003c\/td\u003e\n\u003ctd\u003e316\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBearing plate with radial bearing\u003c\/td\u003e\n\u003ctd\u003eSilicon carbide\u003c\/td\u003e\n\u003ctd\u003e1.4301\u003c\/td\u003e\n\u003ctd\u003e304\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThrust bearing, rotating\u003c\/td\u003e\n\u003ctd\u003eStainless steel \/ aluminium oxide Al2O3\u003c\/td\u003e\n\u003ctd\u003e1.4401\u003c\/td\u003e\n\u003ctd\u003e316\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilling plug\u003c\/td\u003e\n\u003ctd\u003eSilicone (LSR)\u003c\/td\u003e\n\u003ctd\u003e–\u003c\/td\u003e\n\u003ctd\u003e–\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eO-ring, shaft seal\u003c\/td\u003e\n\u003ctd\u003eNBR\u003c\/td\u003e\n\u003ctd\u003e–\u003c\/td\u003e\n\u003ctd\u003e–\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTop cover\u003c\/td\u003e\n\u003ctd\u003ePPS\u003c\/td\u003e\n\u003ctd\u003e–\u003c\/td\u003e\n\u003ctd\u003e–\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThrust-bearing housing\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003ctd\u003e1.4408\u003c\/td\u003e\n\u003ctd\u003e316\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFour screws (M4)\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003ctd\u003e1.4401\u003c\/td\u003e\n\u003ctd\u003e316\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp style=\"font-size:12.5px;color:#9B9EA3;margin-top:8px;line-height:1.55\"\u003eMSF 3 motor, 500-3600 rpm.\u003c\/p\u003e\n\u003cdiv class=\"gs-lead\"\u003e\u003cp\u003e\u003cstrong\u003eSalt content.\u003c\/strong\u003e Resistance of the stainless steel to chloride, for a pumped liquid of pH 5 to 9:\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\u003ctable class=\"gs-tbl\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eStainless steel\u003c\/th\u003e\n\u003cth\u003eChloride content\u003c\/th\u003e\n\u003cth\u003eLiquid temperature\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAISI 304 (1.4301)\u003c\/td\u003e\n\u003ctd\u003e0-300 ppm\u003c\/td\u003e\n\u003ctd\u003eBelow 104 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAISI 304 (1.4301)\u003c\/td\u003e\n\u003ctd\u003e300-500 ppm\u003c\/td\u003e\n\u003ctd\u003eBelow 86 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp style=\"font-size:12.5px;color:#9B9EA3;margin-top:8px;line-height:1.55\"\u003eFor additional protection, for instance where chloride exceeds 500 ppm, Grundfos offers sacrificial zinc anodes: outside-mounted anode 99722879 with fastener set 99812400 (fitted diameter 4.9 in, minimum borehole 5 in; usually two anodes), or bottom-mounted anode kit 99599098 with four threaded rods, which adds 2.2 in to the pump length and keeps the minimum borehole at 3 in.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gs-sec\"\u003e\n\u003cdiv class=\"gs-h\"\u003eSystem Configurations\u003c\/div\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\u003ctable class=\"gs-tbl\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSystem\u003c\/th\u003e\n\u003cth\u003eComponents\u003c\/th\u003e\n\u003cth\u003eWhat it does\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSQFlex Solar\u003c\/td\u003e\n\u003ctd\u003ePump, solar panels, switch box\u003c\/td\u003e\n\u003ctd\u003eThe simplest system. The motor electronics stop the pump on dry running; the switch box lets you switch the supply off when no water is needed or for service\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSQFlex Solar with control unit and level switch\u003c\/td\u003e\n\u003ctd\u003ePump, solar panels, control unit, level switch, water reservoir\u003c\/td\u003e\n\u003ctd\u003eStores solar energy as water in a reservoir for water at night, for short periods when solar energy is insufficient, or as a backup source. The level switch stops the pump when the reservoir is full; the control unit shows reservoir full, pump operation, input power, dry running and service alarms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSQFlex Solar with backup generator\u003c\/td\u003e\n\u003ctd\u003ePump, solar panels, IO 101 switch box, diesel or gasoline generator\u003c\/td\u003e\n\u003ctd\u003eSwitches automatically to generator operation when the generator is started, and back to solar when it is stopped or runs out of fuel. Water during the night or in periods of insufficient solar energy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSQFlex Solar with backup batteries\u003c\/td\u003e\n\u003ctd\u003ePump, solar panels wired for 60 to 110 VDC, 48 VDC charge controller, battery bank, control unit, optional pressure switch and pressure tank\u003c\/td\u003e\n\u003ctd\u003eFor sites where the pump does not run during most of the peak sun hours or where storing large volumes of water is impractical — remote homes or cabins, automatic livestock waterers, very low-yielding wells\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSQFlex Wind and SQFlex Combi\u003c\/td\u003e\n\u003ctd\u003ePump, wind turbine with breaker box, control unit, level switch, solar panels on Combi\u003c\/td\u003e\n\u003ctd\u003eStores wind energy, or wind and solar energy together, as water in a reservoir. Turbine noise increases with wind speed, so do not install the turbine near residential areas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSQFlex system with generator as power supply\u003c\/td\u003e\n\u003ctd\u003ePump, generator\u003c\/td\u003e\n\u003ctd\u003eWater supply 24 hours a day regardless of the weather. The generator must be running steadily before the pump is started\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp style=\"font-size:12.5px;color:#9B9EA3;margin-top:8px;line-height:1.55\"\u003eGrundfos publishes the 2021 system tables around the CU 200 control unit for pumps up to 1400 W and the CIU 903 for any SQFlex up to 2500 W, and the CU 200 is not compatible with the 2500 W motors. The current Grundfos controller for the range is the CU 202, which Grundfos states is compatible with the full range of SQFlex pumps. Communication between control unit and pump runs over the power supply cable (mains-borne signalling), so no extra cable to the pump is required. For the number of solar panels required use the sizing tool at Grundfos Product Center, or email us.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gs-sec\"\u003e\n\u003cdiv class=\"gs-h\"\u003eInstallation, Wiring \u0026amp; Start-Up\u003c\/div\u003e\n\u003cdiv class=\"gs-lead\"\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical connection.\u003c\/strong\u003e The MSF motor is connected to the power supply on two wires plus protective earth. As the integrated electronic unit handles both DC and AC supply voltages, it makes no difference how the wires + and - or N and L are connected.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePanel voltage and output.\u003c\/strong\u003e The SQFlex pump is most efficient at 120 V and above, up to a maximum of 300 V. To maximize pump performance, connect panels to obtain at least 120 V. Grundfos states the following loss in gallons per day against panel output voltage for systems of the same wattage:\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\u003ctable class=\"gs-tbl\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePanel output voltage\u003c\/th\u003e\n\u003cth\u003eLoss in gallons per day\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e120-300 V\u003c\/td\u003e\n\u003ctd\u003e0 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e90 V\u003c\/td\u003e\n\u003ctd\u003e5 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e60 V\u003c\/td\u003e\n\u003ctd\u003e10 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e35 V\u003c\/td\u003e\n\u003ctd\u003e20 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"gs-lead\"\u003e\n\u003cp\u003e\u003cstrong\u003eSolar panel wiring.\u003c\/strong\u003e In series, voltages add and amperage stays the same: four 70 V, 1.43 A, 100 W panels in series give 280 V at 1.43 A. In parallel, amperages add and voltage stays the same: the same four panels give 70 V at 5.72 A. In a series \/ parallel circuit, two series pairs wired in parallel give 140 V at 2.86 A. Panel wattage always adds — 400 W in every case.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDrop cable sizing.\u003c\/strong\u003e Grundfos gives the maximum cable length as L = (ΔP x q x Vmp squared) \/ (Wp x 0.00162) ft, where ΔP is the power loss in %, q is the cross section of the submersible drop cable in square inches, Vmp is the maximum power voltage in V and Wp is the array watt peak. Use the sizing tool at Grundfos Product Center for exact losses.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStarting sequence.\u003c\/strong\u003e The starting sequence has three steps: charging the capacitor, positioning of the rotor, and start. During start-up the motor makes small rotations to bring the rotor into the correct starting position; these rotations also ensure there is water in the pump and that the pump parts are lubricated. Current consumption is uneven during start-up and constant once the motor has started. After the pump has started it takes a while to fill the riser pipe — at moderate energy supply and high head, up to one hour.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHelical rotor pumps.\u003c\/strong\u003e With sufficient energy the pump will normally be running within one minute. If the motor does not start within 15 minutes the pump rotor may be stuck due to dryness, which can happen when a pump has been in storage for some time: dismantle the pump and loosen the rotor, or add water to the pump rotor \/ stator assembly. If sufficient energy is not available the starting sequence is repeated.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gs-sec\"\u003e\n\u003cdiv class=\"gs-h\"\u003eMaintenance \u0026amp; Troubleshooting\u003c\/div\u003e\n\u003cdiv class=\"gs-lead\"\u003e\u003cp\u003eUnder normal operating conditions the pumps and the controls are maintenance-free. Maintenance is confined to the solar modules: clean them when they are dirty using only clean water without soap and a soft brush or cloth, with no sand or abrasive particles in the water; keep grass and trees from casting a shadow on them; and tighten screws and nuts on the support structure if they have loosened. Before specific troubleshooting, check that the modules are intact and unshaded, the cables, pipes and hoses are intact, the water level is at least 3 ft above the pump and the dry running sensor is under water. Troubleshoot solar systems in the middle of an unclouded day. A solar array is live whenever there is daylight: isolate every DC and AC source before working on the pump, the cable or the controls.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\u003ctable class=\"gs-tbl\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eIndication\u003c\/th\u003e\n\u003cth\u003ePossible cause\u003c\/th\u003e\n\u003cth\u003eRemedy\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOvervoltage (F1)\u003c\/td\u003e\n\u003ctd\u003eSupply voltage is above the permissible range\u003c\/td\u003e\n\u003ctd\u003eDisconnect the solar modules to let the voltage drop, reconfigure the modules and reconnect. With another supply source, check the voltage is within the recommended range. Voltage is detected at the motor, so allow for the voltage drop in the pump cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOvertemperature (F2)\u003c\/td\u003e\n\u003ctd\u003eWater temperature too high, or incrustations on the motor\u003c\/td\u003e\n\u003ctd\u003eEnsure the water temperature is below the maximum permissible level. Remove incrustations on the motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNo contact to pump (F3)\u003c\/td\u003e\n\u003ctd\u003ePump cable or connections defective\u003c\/td\u003e\n\u003ctd\u003eCheck the connection in the control unit, the pump cable and the end cover with socket on the pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverload (F4)\u003c\/td\u003e\n\u003ctd\u003eInput voltage too low; on helical rotor pumps, liquid contaminated with oil or a similar substance; motor liquid low or missing\u003c\/td\u003e\n\u003ctd\u003eIncrease the supply voltage to 30 VDC or higher. Clean the liquid and replace the pump. Check or refill motor liquid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower indicator flashing, pump does not start\u003c\/td\u003e\n\u003ctd\u003eInsufficient power supply, or pump has seized up\u003c\/td\u003e\n\u003ctd\u003eIncrease the number of solar modules or connect an alternative energy supply such as wind turbine, batteries or generator. Clean the pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePump running at low wattage\u003c\/td\u003e\n\u003ctd\u003eSystem not grounded; on centrifugal pumps, riser pipe blocked\u003c\/td\u003e\n\u003ctd\u003eCheck the system for adequate grounding. Check that the riser pipe is not blocked\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePump does not stop when the reservoir is full\u003c\/td\u003e\n\u003ctd\u003eLevel switch dirty or defective, or its cable damaged\u003c\/td\u003e\n\u003ctd\u003eClean or replace the level switch. Replace the cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePump stopped on dry running\u003c\/td\u003e\n\u003ctd\u003eWater level below the water level electrode\u003c\/td\u003e\n\u003ctd\u003eThe pump restarts automatically five minutes after the water level is above the electrode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp style=\"font-size:12.5px;color:#9B9EA3;margin-top:8px;line-height:1.55\"\u003eFault codes F1 to F4 are as displayed on the Grundfos SQFlex control unit. From the Grundfos SQFlex service instructions (96547280) and data booklet. Contact us with the data from the pump nameplate for service parts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gs-sec\"\u003e\n\u003cdiv class=\"gs-h\"\u003eApplications\u003c\/div\u003e\n\u003cdiv class=\"gs-lead\"\u003e\u003cul\u003e\n\u003cli\u003eVillages, schools, hospitals and single-family houses\u003c\/li\u003e\n\u003cli\u003eFarms — livestock watering and irrigation\u003c\/li\u003e\n\u003cli\u003eGame reserves — watering applications\u003c\/li\u003e\n\u003cli\u003eConservation areas — pumping of surface water\u003c\/li\u003e\n\u003cli\u003eFloating pump installations for pumping water from ponds and lakes\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gs-sec\"\u003e\n\u003cdiv class=\"gs-h\"\u003eOrdering Information\u003c\/div\u003e\n\u003cdiv class=\"gs-lead\"\u003e\n\u003cp\u003e\u003cstrong\u003eType key.\u003c\/strong\u003e In \u003cem\u003e6 SQF-2\u003c\/em\u003e: \u003cem\u003e6\u003c\/em\u003e is the rated flow in GPM at 3000 rpm, \u003cem\u003eSQF\u003c\/em\u003e is the type range and \u003cem\u003e-2\u003c\/em\u003e is the number of stages.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrder by part number.\u003c\/strong\u003e 3 SQF-2 — 95027332 · 3 SQF-3 — 95027333 · 6 SQF-2 — 95027334 · 6 SQF-3 — 96834840 · 11 SQF-2 — 95027335.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSystem components.\u003c\/strong\u003e A complete system also needs a switch box or control unit, the solar array and support structure, submersible drop cable, cable clips, straining wire and wire clamps, and riser pipe. Level switch, zinc anodes and Grundfos motor-shaft grease (96037562) are available on request. We supply the pump, controls and DC protection; email us the site details and we will put the package together.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gs-note\"\u003e\n\u003cb\u003eBefore You Order\u003c\/b\u003eSize from total head and daily water requirement at your location, never from the pump name alone — the same pump delivers very different daily volumes in different sun. Helical rotor pumps must not be started dry after long storage — see the start-up notes above. The part number is the pump and motor with its motor cable only: solar modules, racking, controller or switch box, disconnects, surge protection, level switch, drop cable, pipe and tank are separate items. Confirm the discharge size against your drop pipe. In areas of high lightning intensity fit external lightning protection. SQFlex equipment is supplied for installation in the United States and ships to U.S. addresses only.\u003c\/div\u003e\n\u003cdiv class=\"gs-contact\"\u003eFor engineering-led sizing and selection support or a factory submittal, email \u003ca href=\"mailto:sales@watermainsupply.com\"\u003esales@watermainsupply.com\u003c\/a\u003e or call \u003ca href=\"tel:18885104036\"\u003e1-888.510.4036\u003c\/a\u003e.\u003cbr\u003e© Watermain Supply — A division of E4 Industrial LLC\u003c\/div\u003e\n\u003c\/div\u003e\u003ch5\u003eData Sheet\u003c\/h5\u003e\u003cdiv class=\"gs\"\u003e\u003cdiv class=\"gs-dl\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0264\/1913\/4527\/files\/DN000993_0421_SQFlex_Range-8.5x11-Farm-USA-Final-1.pdf?v=1789850918\" target=\"_blank\" rel=\"noopener\"\u003eSQFlex Range Brochure — Models, Range Chart and Controls (DN000993, 04\/2021)\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0264\/1913\/4527\/files\/LSQSL010.pdf?v=1789850919\" target=\"_blank\" rel=\"noopener\"\u003eGrundfos SQFlex Brochure (L-SQ-SL-010)\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0264\/1913\/4527\/files\/L-SQ-TL-031_1012_SQFlexServInstr.pdf?v=1789850918\" target=\"_blank\" rel=\"noopener\"\u003eSQFlex Service Instructions (L-SQ-TL-031, 10\/2012)\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0264\/1913\/4527\/files\/sqflex_SI_US.pdf?v=1789850918\" target=\"_blank\" rel=\"noopener\"\u003eSQFlex Service Instructions — Earlier Edition (96547280, 02\/2006)\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0264\/1913\/4527\/files\/96488862_12.2023_Service_Kit_Catalogue_2023_Online_SQFlex.pdf?v=1789850917\" target=\"_blank\" rel=\"noopener\"\u003eSQFlex Service Kit Catalogue (96488862, 12\/2023)\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0264\/1913\/4527\/files\/966494751006_battery_US.pdf?v=1789850917\" target=\"_blank\" rel=\"noopener\"\u003eSQFlex Battery Backup Systems (96649475, 10\/2006)\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0264\/1913\/4527\/files\/DN000994_0221_GO_Solar_Flyer_-_A4_Size.pdf?v=1789850898\" target=\"_blank\" rel=\"noopener\"\u003eGrundfos GO Solar Sizing App Flyer (DN000994, 02\/2021)\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0264\/1913\/4527\/files\/DN000858_0120_GWI-Solar_Article.pdf?v=1789850917\" target=\"_blank\" rel=\"noopener\"\u003eGrundfos Solar Pumping Article (DN000858, 01\/2020)\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003ch5\u003eVideos\u003c\/h5\u003e\u003cdiv class=\"gs\"\u003e\u003cdiv class=\"gs-sec\" style=\"margin-top:6px\"\u003e\u003cp style=\"font-size:13px;color:#9B9EA3\"\u003eProduct videos are being added to this listing. For a walkthrough in the meantime, email sales@watermainsupply.com.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c!-- \/TABS --\u003e","brand":"Grundfos","offers":[{"title":"3 SQF-2","offer_id":47538164498607,"sku":"95027332","price":4009.15,"currency_code":"USD","in_stock":true},{"title":"3 SQF-3","offer_id":47538164531375,"sku":"95027333","price":4009.15,"currency_code":"USD","in_stock":true},{"title":"6 SQF-2","offer_id":47538164564143,"sku":"95027334","price":4009.15,"currency_code":"USD","in_stock":true},{"title":"6 SQF-3","offer_id":47538164596911,"sku":"96834840","price":4005.85,"currency_code":"USD","in_stock":true},{"title":"11 SQF-2","offer_id":47538164629679,"sku":"95027335","price":4009.15,"currency_code":"USD","in_stock":true}],"url":"https:\/\/watermainsupply.com\/products\/grundfos-sqflex-helical-rotor-solar-submersible-pump","provider":"Watermainsupply","version":"1.0","type":"link"}