Stainless Steel Deep Well Submersible Pump Factory China Leading Suppliers

Looking for reliable China suppliers? Our factory specializes in SS304 water filled deep well pumps. We undertake OEM processing to design and manufacture non-standard submersible motors and pumps according to GB/T2816-2014 and GB/T2818-2014 standards. Contact us via WhatsApp 17855846335.

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The SP Series All Stainless Steel Water Filled Deep Well Pump is a premium engineering solution designed for high-performance water extraction. Featuring a motor filled with clean water and a specialized wear-resistant sleeve, this pump eliminates the need for grease, ensuring zero pollution and maximum purity. Constructed with high-grade stainless steel 304 impellers, the series offers exceptional resistance to corrosion and wear, making it an energy-efficient and environmentally friendly choice for demanding industrial and municipal applications.

Engineered for versatility, the SP Series is ideal for extracting underground drinking water, powering decorative fountains, and handling seawater. Its robust build further extends its utility to the beverage, food, and petrochemical industries, as well as marine fire protection systems. By combining high-precision manufacturing with durable materials, these pumps ensure a stable water supply while minimizing maintenance costs and operational downtime.

Detailed Parameters

Power Supply	Three-phase AC 380V (±5%), 50Hz (±1%)	Max Diving Depth	Up to 70 meters
Material (Impeller)	Premium Stainless Steel 304	Max Water Temp	≤ 20 °C
PH Value Range	6.5 - 8.5	Solid Impurities	≤ 0.01% (Mass Ratio)
Hydrogen Sulfide	≤ 1.5mg/L	Chloride Ion	≤ 400mg/L
Installation Mode	Strictly Vertical Use	Rated Flow Range	0.7 - 1.2 times the rated flow

Key Advantages

Anti-Corrosive Build

Full SS304 stainless steel construction ensures longevity in seawater and corrosive chemical environments.

Zero Pollution

Water-filled motor design avoids grease contamination, making it safe for food and drinking water.

Energy Efficient

Optimized hydraulic impeller design reduces power consumption while maintaining high flow rates.

Wide Application

Suitable for agriculture, high-rise buildings, petrochemicals, and marine fire protection.

Stable Performance

Specially designed wear-resistant sleeves ensure smooth operation under continuous load.

Easy Integration

Compatible with standard waterproof cables and external overload protection devices.

Product Gallery

Management Platforms

Water Quality Control

Strict monitoring of PH values and chloride levels to ensure pump longevity.

Installation Safety

Mandatory vertical alignment and minimum 3m clearance from well bottom.

Electrical Protection

Integrated short-circuit, overload, and phase protection for motor safety.

Thermal Insulation

Regular insulation resistance checks (min 0.5MΩ) after initial operation.

Maintenance Cycle

Annual inspection and wear-part replacement for optimized efficiency.

Storage Protocol

Cavity draining and anti-corrosive storage below 40°C to prevent damage.

Investment Return Comparison

Feature	Standard Cast Iron Pumps	SP Stainless Steel Series
Corrosion Resistance	Low (Prone to Rust)	Excellent (SS304)
Water Purity	Potential Oil Leakage	100% Grease-Free
Lifespan	Short to Medium	Extremely Long
Maintenance Cost	High (Frequent Replacement)	Low (Durable Components)
Application Range	Fresh Water Only	Fresh, Sea, & Industrial Water

Frequently Asked Questions

Q: Can the SP series be used for drinking water?

Yes, the SP series is specifically designed for drinking water extraction. The motor is water-filled and grease-free, ensuring no contamination of the water supply.

Q: What is the maximum depth this submersible pump can reach?

The diving depth for the SP series is not greater than 70 meters. It is essential to maintain a distance of at least 3 meters from the bottom of the well.

Q: Is this pump suitable for saltwater applications?

Absolutely. The use of stainless steel 304 for the impeller group makes it highly resistant to corrosion, making it an ideal choice for seawater and marine fire protection.

Q: How do I prevent the motor from burning out?

Avoid no-load testing and ensure the motor cavity is completely filled with clean water before use. Always use external overload and phase protection devices.

Q: What are the requirements for the well installation?

The well must be straight, and the pump must be installed vertically. It is strictly prohibited to use the pump in a tilted or dumped position.

Q: How often should I perform maintenance on the SP series pump?

We recommend a full disassembly and inspection once a year, or every two years if the pump has been immersed but operated infrequently, to replace worn parts.

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