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Submersible Pump 750W-8.5m
Model : RH-4037
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Model : RH-4037 (NA)

Submersible Pump 750W-8.5m

Barcode For Color Box : 6942318622410

Barcode For Inner Carton : 6942318622427

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  • IPX8 protection level, with thermal protection and insulation Class B, ensures long motor life.
  • Submersible pump design, ideal for immersion in water for water lifting and drainage.
  • Suitable for clean water free of solids and abrasives, as well as non-viscous, non-aggressive, non-crystallized liquids with physical and chemical properties similar to water.
  • Perfect for domestic drainage, water lifting from tanks, rivers, or pools, and for garden and allotment irrigation.
  • Equipped with a float switch for automatic water level control and pump operation.
  • Continuous-duty motor (type S1) for increased durability
  • Stainless steel screws for corrosion resistance
  • Stainless steel motor cover and shaft for extended longevity.
  • Oil-submerged lip seal and mechanical seal for improved reliability.
  • High-strength engineering plastic pump body for added durability.
The RH-4037 Submersible Pump is a high-capacity water pump designed to handle demanding domestic and garden water management tasks. With its powerful motor, advanced safety features, and durable construction, it offers reliable performance whether you’re draining water, transferring it from tanks or pools, or irrigating a large garden. Built for efficiency and longevity, this pump makes water management really easy.
Model RH-4037
Power 750 W
1 HP
Voltage 220-240 V
Frequency 50 Hz
Max. Flow 12500 L/h
12.5 m³/h
Min.Head 0 m
Max. head 8.5 m
outlet port diameter G1 1/2 inch
Speed 2850 RPM
Max. liquid temperature 35 ℃
Max. Ambient temperature 35 ℃
Working Pressure 0.85 Bar
solid passage diameter 5 mm
max immersion depth 7 m
max dry running time 30 seconds
Protection level IPX8
Insulation Class B class
Pump housing material PP
Motor housing material 409#Stainless steel
Mechanical seal material Ceramic and graphite
Motor protection 125 ℃
Coil winding material copper winding
Impeller material PA66
shaft material 420#Stainless steel
Net Weight 5 Kg
Gross weight 5.4 Kg
packaging color box
Accessories Adaptor*1, manual*1
Downloads & Resources
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RH-4037 submersible pump: 750W, 12,500 L/h, durable and waterproof for garden, tank, or pool use. Read more for full features.
With a 750W / 1 HP motor, this pump can move up to 12,500 liters of water per hour and lift it up to 8.5 meters. Its continuous-duty motor ensures long-lasting, steady performance, while it works safely with clean water free of solids or abrasive materials. The pump is built to last. Its PP plastic body is strong and durable, while the stainless steel motor housing and shaft resist rust. The PA66 impeller and ceramic/graphite mechanical seals improve efficiency and reliability. Fully submersible up to 7 meters, it’s ideal for tanks, pools, or rivers.
The RH-4037 is built to last. Its PP pump body is strong yet lightweight, while the PA66 impeller ensures efficient, durable water flow. Stainless steel housing and shaft resist corrosion, and ceramic/graphite seals with an oil-submerged lip seal prevent leaks. With copper windings powering the motor, every component combines strength, reliability, and long-term performance.
The RH-4037 is engineered for high-capacity water movement. Its 12,500 L/h maximum flow allows quick drainage or water transfer, while a max head of 8.5 meters ensures efficient lifting even from deep tanks or ponds. Running at 2850 RPM, it provides consistent and reliable performance, maintaining a stable working pressure of 0.85 Bar for smooth operation.
Safety features protect both the pump and the user. The IPX8 waterproof rating ensures safe immersion, while the thermal protection system prevents overheating by stopping the pump if the motor exceeds 125°C. The float switch enables automatic start and stop based on water levels, preventing dry-run damage. Even in accidental dry-run scenarios, the pump tolerates up to 30 seconds safely.
Built to last, the RH-4037 features corrosion-resistant stainless steel screws, motor cover, and shaft, alongside a high-strength PP body to withstand long-term use. The continuous-duty motor (S1) supports extended operation without risk of burnout, while Class B insulation ensures the motor remains efficient and reliable over years of use. Designed for water and ambient temperatures up to 35°C, it remains dependable in typical domestic or garden environments.
The RH-4037 handles a wide range of water tasks with ease. It’s perfect for domestic drainage, garden irrigation, and lifting water from tanks, wells, or pools. Designed for clean, non-abrasive liquids, it’s a versatile solution for everyday water transfer and management.
The RH-4037 includes a connection adaptor and user manual, all neatly packed in a protective color box for easy handling and quick setup.  
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