QSP Stainless Steel Submersible Pump

 1. Fountain landscaping water supply:                                                                   It provides stable water pressure and flow for various landscape fountains (musical fountains, programmed fountains, sculpture fountains, etc.), supporting the nozzles to achieve different water spray effects. 

 2. High-frequency start/stop response:                                                                        It can adapt to frequent starts and stops multiple times per second, accurately match the rhythm of the music and changes in the water pattern, and meet the dynamic control requirements of musical fountains. 

 3. Water circulation and replacement:                                                                     Used for water circulation in fountains and landscape ponds to keep the water fresh, while also assisting in water supply and drainage in low-lift scenarios. 

 4. Submersible silent operation:                                                                                          The entire unit operates submerged in water, operates with low noise, does not disturb the viewing experience of the landscape, and has built-in leakage protection for safer use.

 1. Media Requirements 

 Suitable for clean water, with a pH value of 6.5~8.5, solid impurities ≤0.1% and particle size ≤0.2mm; avoid pumping sewage, corrosive liquids or water bodies containing large particles. 

 2. Water temperature and diving depth 

 The medium temperature is 0～40℃; the whole machine must be completely immersed in water, the diving depth is controlled at 0.5~5m, and the distance from the bottom of the pool is ≥0.5m to avoid sucking in the mud and sand at the bottom of the pool. 

 3. Power supply conditions 

 It is generally compatible with three-phase 380V / single-phase 220V, 50Hz power supplies. The supply voltage must be stable within ±10% of the rated value to avoid voltage fluctuations damaging the motor. 

 4.Environmental tolerance 

 It can operate for extended periods in outdoor settings such as open fields, plazas, and gardens. Measures must be taken to protect the control cabinet from rain, dust, and moisture. The operating environment should be free from strong electromagnetic interference and kept away from flammable and explosive materials.

 ✅Fountain-specific high-frequency start/stop:                                                                    Designed specifically for music/programmable fountains, it can start and stop frequently multiple times per second, with fast response, low inertia, and precise matching of water patterns and music rhythm changes, making it irreplaceable by ordinary submersible pumps. 

 ✅Safe and quiet operation during diving:                                                                             The pump features an integrated submersible design with no exposed parts, resulting in extremely low operating noise and minimal disruption to the landscape. It comes standard with a three-phase four-wire dedicated cable and constant potential grounding, providing adequate leakage protection for enhanced safety. 

 ✅ Corrosion-resistant, durable, and does not pollute the body:                                                                      The core components are made of stainless steel, and the inner cavity of the motor is coated with imported anti-rust magnetic paint, which is corrosion-resistant and anti-aging; it is water-filled and self-circulating for cooling, eliminating the risk of oil leakage and ensuring that it will never pollute the fountain pool water. 

 ✅High efficiency, energy saving, and stable flow rate:                                                                         The hydraulic model design is optimized, with a reasonable ratio of flow rate/head/efficiency. It features high flow rate and low head, stable water supply pressure, meets the needs of various fountain water spray patterns, and has low energy consumption and is more energy-efficient. 

 ✅Lightweight, easy to install and maintain:                                                                                                                           Compact size and lightweight, with flange/hose connections for direct pipe connection, making installation convenient; stainless steel filter screen intercepts impurities, requiring only daily filter screen cleaning, resulting in extremely low maintenance costs. 

 ✅Stable structure and longer lifespan:                                                                           The impeller is equipped with an anti-loosening device to prevent it from coming loose during operation; the motor has a high insulation level, making it suitable for all-weather operation of outdoor fountains, and its durability far exceeds that of ordinary submersible pumps.

 1. Core Scene of the Landscape Fountain 

 It is compatible with various professional fountain projects such as musical fountains, programmed fountains, dry fountains, running fountains, swaying fountains, ultra-high water column fountains, and sculpture fountains, providing stable water pressure for the nozzles and achieving dynamic landscaping effects where the water pattern changes with the music or program. 

 2. Garden and water feature supporting scenes 

 Used for water circulation in park artificial lakes, courtyard landscape ponds, and community water features to maintain water quality and drive the circulation of water in small waterfalls, streams, and other static water features. 

 3. Low-lift water supply and drainage expansion 

scenarios                                                                                            It can be used for drainage of waterlogged areas, low-lift irrigation in agriculture and gardens, water replacement in aquaculture ponds, and clean water discharge from small venues and basements.

 1. Installation Preparation 

Check that the pump body and cable are undamaged. Fully immerse the pump in water for 0.5~5m, with a distance of ≥0.5m from the bottom of the pool. Connect the nozzle pipeline, ground the control cabinet, and test the protection functions. 

 2. Start running

Power on and run unloaded for 1-2 minutes. If there are no abnormalities, open the nozzle valves. Musical fountains require linkage control systems to test high-frequency start-stop response. Monitor motor temperature and water pressure during operation. 

3. Shutdown maintenance 

First, close the valves and control system, then disconnect the power. For short-term shutdowns, do not lift the pump. For long-term shutdowns, remove the pump, clean the filter and impeller, and store it in a dry place.

 1. Unable to start or tripping upon startup 

 The causes are mostly due to power phase loss/unstable voltage, cable damage and leakage, false triggering of control cabinet protection devices, or water entering the pump body or impeller being stuck by impurities. 

 2. Insufficient water pressure and reduced flow rate 

 Common causes include clogged filters, scale buildup on the impeller, insufficient submersion depth of the pump body, leaks in the pipeline, or an incorrect head selection that exceeds actual requirements. 

 3. Frequent start-stop failures 

 (For musical fountains only) This is usually caused by a mismatch between the control system and the pump body signals, or by a decrease in motor response speed or poor cable contact. 

 4. Abnormal noises and excessive vibration 

during operation                                             This is mostly caused by the pump body rubbing against foreign objects at the bottom of the pool, impeller wear imbalance, or loose pipeline fixing or uneven pump installation. 

 5. Motor overheating and shortened lifespan 

 This can be caused by prolonged overload operation, incomplete immersion of the pump body leading to poor heat dissipation, voltage fluctuations, or aging of the insulation layer.