551692 2 Grundfos SQ Series Specifications
: Pump 551692 2 Grundfos Sq Series Specifications 551692_2_Grundfos SQ Series Specifications pdf
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SQ RANGE SUBMERSIBLE PUMPS MOTOR PROTECTION AND WEAR-REDUCING BENEFITS At only 3” in diameter, the Grundfos SQ submersible pump is extremely compact and ideal for small or restricted boreholes. In addition to the features and benefits shared with the renowned SP submersible pump, the SQ offers a number of motor protection and wear-reducing features that makes it the obvious choice for groundwater extraction at domestic or small waterworks, for irrigation systems, or for groundwater lowering. H [m] H [ft] SQ SQ-N SQE SQE-N ISO 9906 800 200 600 400 100 90 80 300 70 60 50 200 150 40 30 100 30 0 0 4 8 12 2 22 SQ/SQE 15 SQ/SQE 5 SQ/SQE 40 10 10 SQ/SQE 60 16 20 4 30 SQ/SQE 80 20 24 28 6 32 36 Q [US GPM] 8 Q [m³/h] HOW THE SQ PROTECTS AND REDUCES WEAR The SQ pump provides several features that simplify your installation and add reliability to the system. VOLTAGE HANDLING DRY RUNNING PROTECTION Increased winding temperature caused by undervoltage often results in reduced lifetime. The SQ motor is protected against over and undervoltage, and voltage fluctuation generally. SQ SQ Conventional AC Motor The SQ pump is factory pre-set based on minimum power consumption, and dry-running protection is activated 40 seconds after power is connected to allow priming of the H pump. When there is no water in the hydraulics, power consumption is reduced. The SQ stops automatically when below the dry run power limit and restarts automatically within 5 minutes after cut-out. Q H 244 V Q P 150 180 200 220 240 260 280 315 Supply voltage [V] SOFT START Soft start ensures a low starting current with a smooth and steady acceleration. This offers excellent starting reliability at low voltage, prevents overload of the mains power, reduces water hammer in the pipe, and reduces pump wear. Low current draw and soft start allows use of smaller gauge wire compared to traditional 4” motors. This can reduce the overall cost of installation. Current Direct online (DOL) Q ADDED FEATURES THAT PROTECT YOUR SQ PUMP P1 Compared with a conventional 4” pump and motor, the P cut-out added features of voltage handling and soft start, power Q supply, and dry running protection offer simplicity and reliability for your installation. Properties & features SQ Conventional AC motor Overvoltage/undervoltage protection Yes No Integrated dry running protection Yes No Over temperature protection Yes No Overload protection Yes No Start function with high torque and without starter box Yes No TECHNICAL DATA Soft start 2 sec. Time POWER SUPPLY Low ampere usage makes it possible to connect more appliances to the same fuse group or reduce the size of the power line. Small generators can be used with SQ. Grundfos recommends to use a generator with a capacity 50% higher than rated pump power consumption. Grundfos 2001 Butterfield Rd, Ste 1700 Downers Grove, IL 60515 www.grundfos.us www.grundfos.ca www.grundfos.mx • • • • • • • • • • • • • Flow up to 36 gpm (8.2 m3/h) Head up to 780 ft (180 m) Nominal power supply: 1x200-240 V – 50/60 Hz Max. acceptable media temp: 86°F (40°C) when flow past motor Pump diameter: 2.9 in. (74 mm) Min. well diameter: 3 in. (76 mm) Weight (min./max.): 10.4-14.1 lbs (4.7-6.4 kg) Thread connections: RP 1¼˝ / RP 1½˝ Materials (Stainless steel): DIN W.-Nr. 1.4301/1.4401, AISI 304/316 The SQ pump can be installed vertically or horizontally Built-in electronics Permanent magnet motors Torgue exceeds that of traditional motors Higher efficiency than traditional motors The name Grundfos, the Grundfos logo, and be think innovate are registered trademarks owned by Grundfos Holding A/S or Grundfos A/S, Denmark. All rights reserved worldwide. 207 V P1 P cut-out L-SQ-SL-001 10-16 P
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