4SP Stainless Steel Deep Well Submersible Pump

Detail / Structure Image

Key Features

• Stainless Steel Hydraulic Components: Impellers, diffusers, and outer shells constructed from AISI 304 stainless steel deliver corrosion resistance and wear protection for extended service life in various water conditions .

• Multistage Impeller Design: Multiple impeller stages generate high discharge pressure, enabling water lifting from significant depths. Stage counts range from 4 to 37 stages depending on model configuration .

• NEMA Standard Motor: Motor constructed to NEMA dimension standards, ensuring compatibility with a wide range of pump configurations and simplifying system integration .

• IP68 Protection & Class B Insulation: Full ingress protection for continuous submersion operation, supported by Class B insulation for thermal durability .

• Built-In Check Valve: Internal stainless steel check valve functions to manage backflow when the motor stops, supporting system integrity .

• Oil-Filled Motor Design: Supports immersion depths up to 100 meters with effective motor cooling and protection .

• Flexible Power Configurations: Available in single-phase (220V-240V) and three-phase (380V-415V) configurations for 50Hz or 60Hz power supplies, accommodating diverse regional electrical requirements .

• Integrated Thermal Protection: Single-phase models include built-in thermal protectors for overload protection, enhancing operational safety .

• Full-Head Operation Capability: Pumps can operate across the entire head range, providing flexibility in system design .

Competitive Advantages

Superior Material Durability: The 4SP series distinguishes itself through all-stainless-steel construction of hydraulic components, including impellers and diffusers. This material selection provides corrosion resistance and wear protection that extends operational life compared to pumps using plastic or brass impellers . For B2B buyers, this translates to reduced maintenance cycles and lower total cost of ownership.

High Hydraulic Efficiency: The multistage impeller design is engineered for optimal hydraulic performance, achieving efficient energy conversion across the operating range. This efficiency reduces power consumption per unit of water delivered, a critical factor for continuous-duty applications where energy costs represent significant operational expenses .

System Integration Flexibility: Adherence to NEMA standards and availability in both single-phase and three-phase configurations facilitates seamless integration into new and existing systems . The ability to couple with 4SD(M) motors of various power ratings provides additional flexibility for system designers and procurement professionals .

Full-Head Operation Capability: The pump's ability to operate across the entire head range without performance degradation provides installation flexibility and simplifies system design . This feature allows the pump to adapt to varying system demands without requiring complex control modifications.

International Compliance: The 4SP series meets international standards with CE certification and compliance with NEMA dimension specifications . This compliance reduces regulatory barriers for international projects and provides assurance of quality and safety.

Engineered for Challenging Conditions: The pump's stainless steel construction and built-in sand filtering capabilities make it suitable for wells with moderate sand content, extending its applicability to a broader range of geological conditions .

Commercial Value

For procurement professionals and system integrators, the 4SP series delivers a compelling value proposition through several key commercial advantages:

Reduced Total Cost of Ownership: The stainless steel construction and high-efficiency hydraulic design combine to lower long-term operational costs. Reduced energy consumption directly impacts utility expenses, while corrosion-resistant materials extend maintenance intervals and replacement cycles. The pumps' robust construction supports continuous-duty operation, minimizing downtime in critical applications.

Application Versatility: The broad range of models—from 0.37kW to 7.5kW—enables precise specification for diverse applications, simplifying inventory management for distributors serving multiple market segments. The pump's ability to handle various system requirements reduces the need for multiple pump types in a single inventory.

Regulatory Compliance: CE certification and NEMA standard compliance facilitate market access and reduce project approval timelines for international installations . This compliance provides assurance to end-users regarding product quality and safety.

Installation Efficiency: The compact design and straightforward installation procedures reduce engineering costs and site preparation requirements. The pump's self-contained design eliminates the need for complex surface-mounted equipment, reducing overall system footprint .

FAQ

Q: What is the minimum well diameter required for the 4SP pump?

A: The 4SP series requires a minimum well casing diameter of 4 inches (100mm), as indicated by the "4" in the model designation .

Q: What is the maximum immersion depth for this pump?

A: The maximum immersion depth is up to 100 meters, supported by the oil-filled motor design .

Q: What is the maximum sand content the pump can handle?

A: The pump can handle water with a maximum sand content of 0.01% (weight ratio). This is an important specification for applications where water contains suspended solids .

Q: What does the "SP" designation indicate?

A: The "SP" typically denotes "Submersible Pump" in the model series designation. Some manufacturers may use "SP" to indicate the series or product family .

Q: What types of control systems are available for the 4SP series?

A: The pumps can be equipped with automatic control boxes offering protection against over-temperature, short circuit, overload, and under-voltage conditions, enhancing operational safety and reliability .

Q: What are the acceptable water quality parameters for this pump?

A: The pump operates within the following water quality parameters: pH 6.5-8.5, maximum sand content 0.01%, maximum chemical substance content 1.5mg/L, and maximum chloride ion content 400mg/L .