Foshan Dragon Edge Outdoor Equipment Co., Ltd , https://www.dragon-edge.com
12" Vertical Multistage Stainless Steel Sea Water Submersible Electric Pump
**Product Specifications of Vertical Multistage Stainless Steel Sea Water Submersible Electric Pump 12"**
- **Model No.:** 300QJ/H
- **Pump Shaft Position:** Vertical
- **Pump Casing Type:** Submersible
- **Mounting Type:** Suction Centrifugal
- **Impeller Design:** Closed
- **Usage:** Water Pump
- **Well Diameter:** ≥12"
- **Packaging:** Export Wooden Case or Carton
- **Origin:** China
This vertical multistage stainless steel sea water submersible electric pump is designed for a wide range of industrial and marine applications. It is ideal for offshore platform fire-fighting, thermal dissipation, seawater desalination, seawater lifting, coastal fountains, mariculture, and as a ground source heat pump in coastal areas.
**Technical Parameters:**
- **Outlet Diameter:** 200mm (8")
- **Bolt Quantity:** 12 bolts of type 16×60 (8.8) with a center distance of 256mm
- **Flange Included:** A matching flange is provided with an outer diameter of 282mm, inner diameter of 220mm, and thickness of 20mm to ensure easy installation
**Medium Range:**
- Suitable for various types of seawater, alkaline corrosive water, clean water, cold water, rainwater, mining gushing water, and drinking water
- Operating temperature range: +5°C to +100°C
- Solid content (mass ratio): ≤0.01%
- The entire unit must be fully submerged in water while operating vertically
**Motor Specifications:**
- The submersible motor is lubricated by clean water and must be filled before operation; otherwise, the motor's service life will be significantly reduced
- Motor protection level: IPX8
**Power Source:**
- Rated voltage: 380V / 415V / 460V / 6kV / 10kV
- Frequency: 50Hz / 60Hz
- Custom voltages or frequencies can be provided upon request
**Materials Used:**
- **Impeller:** Bronze, SS304, SS316, SS316L
- **Pump Bowl:** Bronze, SS304, SS316, SS316L
- **Pump Shaft:** Cold-drawn steel with chrome plating or stainless steel 2Cr13 (heat-treated at 1050°C to enhance torsional strength)
- **Motor Seal:** Rubber O-ring seal or mechanical seal
- **Motor Regulating Sleeve:** Rubber
**Key Advantages:**
1. Easy installation with pre-mounted flange
2. Low noise and multi-stage design
3. Built-in check valve prevents water hammer effect
4. High head capacity with single stage, stable performance, and a shaft diameter of φ28mm for improved torsional resistance
5. Wear-resistant bearing liner made from natural rubber, with optional imported hard bearing liner
**Standard Supply Scope:**
- Submersible pump unit (pump body and motor)
- Built-in check valve
- One matching flange
- 8 M12×55 bolts
- Maintenance manual
- Conformity certificate
- Packing list
- External packaging
**Friendly Reminder:**
To ensure convenience and product quality, all related components are manufactured in-house. Our full range includes:
1. Various lifting pipes (high-frequency welded, diameters from 25mm to 500mm), available with flange, screw, or clamp connections
2. Pipe clamps (lengths from 50mm to 500mm, customizable)
3. Wellhead devices, including return flow instruments and improved pump seats (steel plate welding instead of cast iron, with enhanced cable entry hole design)
4. Desanders to prevent sand blockage and extend service life
5. Additional products such as submersible cables, starter cabinets, frequency converters, transformers, and power generation sets
6. Customized design proposals for piping networks, tanks, and installations based on site conditions
Our pumps are engineered for durability, efficiency, and ease of use in challenging marine environments. Whether you're working on an offshore platform, a coastal facility, or a water treatment system, our submersible pumps are built to meet your needs. Let us support your project with reliable, high-quality solutions.