Stainless steel household submersible pumpproduct overview

QDN household submersible pumps are independently developed and produced by our company, made of 304, 306, 316L stainless steel materials; Wear resistant and corrosion-resistant mechanical seals. This all stainless steel submersible pump has a beautiful appearance, small size, and uses a single-phase power supply. The motor is an asynchronous dry-type motor cooled by a pumped medium. The all stainless steel submersible pump can be equipped with a float switch, which can automatically control the start or stop of the submersible pump according to changes in liquid level. This small stainless steel submersible pump has an exquisite appearance, can be used with full head, high efficiency, low noise, stable performance, and long service life.
2. Main uses of QDN submersible pump
★ Household submersible pump used for high-rise building domestic water supply
★ Household submersible pump used for deep well water lifting
★ Household submersible pump for small fountains
★ Household submersible pumps are used for agricultural and horticultural sprinkler irrigation
3. Application conditions of QDN submersible pump
★ Household submersible pumping medium: clear water, seawater
★ Medium temperature: 0 to 40 ℃
★ Medium pH value: 4 to 10
★ Power Requirements: Frequency of 50Hz. Single phase, rated voltage of 220 V ± 5%.
4. Technical parameters of QDN submersible pump
★ Flow rate: 6 cubic meters per hour
★ Lift: 100 meters
★ Power range: 0.55 to 1.5 kW
★ Discharge diameter: 40mm, 65mm
Model meaning;

Performance parameter table:

Stainless steel household submersible pumpProduct detail diagram;

Stainless steel submersible pump starting
Before starting, check if the water pump installation and power connection are correct.
2. The float switch is directly connected to the pump to control the start and stop of the pump. Check if the float switch can move freely without interference from other objects.
3. For small submersible pumps without float switch structures, the pump starts when it is completely submerged in water. If the motor is not completely immersed in water or runs for too long in water temperatures exceeding 40 ℃, the motor will be shut down. When the temperature of the motor coil is too cold, the thermal protection device automatically switches.
4. Start the small stainless steel submersible pump and let it rotate for a few seconds to check its starting, running, and direction of rotation (for three-phase pumps, if the wrong direction of rotation is found, the two phases should be rotated before starting). If no or very little water flows out, it indicates that the direction of rotation of the pump is faulty, and you should rotate the phase.
Stainless steel small submersible pump operation
1. When the water pump is running, you must pay attention to the water surface height (especially when running at small capacity). Once the water surface height is not enough, the water pump must be prohibited from running. If the water pump runs for a long time without water, it will burn out the motor or coil.
2. The actual lifting height (from the water surface to the destination) should not be less than 80% of the specified lifting height (see nameplate for lifting height).
3. The voltage fluctuation range of QDN stainless steel submersible pump should be within 10% of the rated voltage, otherwise it will reduce the motor life and even damage the motor.
4. If any abnormal phenomena are found during the operation of QDN submersible pump, such as abnormal noise, insufficient or no water output, the power should be immediately turned off and the pump operation should be stopped. Do not touch the pump body when it is powered on or damp.