Submersible Borewell Pump

Submersible Borewell pump- SP/ SQE

Description:-

The Grundfos SP is a 4-inch multi-stage submersible pump, designed for operation in boreholes. SP is made of corrosion-resistant stainless steel, o­ering high operating reliability regardless of the application. The SP o­ers high efficiency along with high resistance to sand and other abrasive particles.

The Grundfos SQE is a small and compact submersible multi-stage pump. The motor of the SQE pump is a permanent magnet motor with a micro-frequency converter ensuring optimum efficiency. The built-in frequency converter features protective functions and soft-starting, which reduces starting current and gives smooth and steady acceleration and dry-running protection. The SQE pump is handy and user-friendly due to its low weight and 3-inch diameter.

Application:-

• Water lifting from borewell.
• Water transfer from the ground tank.
• Submersible booster through an external controller (CU301) from underground tanks and roof tanks- SQE model.

Features:–

 SP pumps

1. 100% high-grade stainless steel inside and outside As standard, all Grundfos SP pumps are made entirely of stainless steel DIN 1.4301 (AISI 304), where particularly aggressive liquids are encountered. The SP pumps are available in extra high-grade stainless steel DIN 1.4401 (AISI 316), in the case of severe conditions, DIN 1.4539 (AISI 904 L) providing maximum reliability.
2. Bearings with sand channels All bearings are water-lubricated and are squared shape, enabling sand particles, if any, to leave the pump together with the pumped liquid.
3. Inlet strainer The pump is mounted with an inlet strainer preventing particles over a certain size from entering the pump.
4. Non-return valve SP pumps have a built-in non-return valve preventing back?ow in connection with pump stoppage.

Technical Data:-

1. Liquid temperature : 0 °C to 30 °C at 0.15 m/s
2. Mains voltage : 1 x 240 V, 50 Hz
3. Enclosure class: IP68
4. Insulation class: F
5. Approvals and markings: UL, CSA, VDE, CE

Features- SQE pump:-

1. Excellent starting capabilities The soft starter minimizes the risk of wear & tear on the pump and prevents overloading of the mains during start-up. Its soft-start system also reduces water hammering, light. Pickering, and other electrical disturbances.
2. Overvoltage and Undervoltage protection The integrated protection prevents damage to the motor, in case the supply voltage moves outside the permissible voltage range.
3.  Overload protection The SQE eliminates the need for external motor protection. If the pump is exposed to a heavy load the motor will automatically reduce its speed, or if the pump is blocked it automatically stops.
4. Overheating protection As an extra protection, the electronic unit has a built-in temperature sensor. When the temperature exceeds a critical limit, the pump is stopped and when the temperature has dropped, the pump automatically starts.
5. Protection against upthrust The SQE is fitted with an upthrust bearing, protecting both the pump and motor against upthrust. thus, preventing breakdown during the critical start-up phase.

             Technical Data:-

1. Liquid temperature : 0 °C to 35 °C
2. Enclosure class: IP68
3. Insulation class: F
4. Installation depth: Max. 150 m below static water level
5. Pump diameter: 74 mm
6.  Approvals and markings: CE, UL, cUL