316 Stainless Steel Submersible Sewage Pump with 1000 m³/h Flow and 2205 Duplex Stainless Steel Shaft for Wastewater

The 350WQP1000-18-90kW-4 is a heavy-duty stainless steel submersible sewage pump designed for high-flow wastewater transfer. It provides a rated flow capacity of 1,000 m³/h, a rated head of 18 m, and is powered by a 90 kW four-pole submersible motor.

The pump is manufactured from 316 stainless steel and equipped with a 2205 duplex stainless steel shaft. This material combination provides enhanced corrosion resistance, mechanical strength, and operational reliability in demanding wastewater environments.

The pump is suitable for municipal wastewater treatment, industrial effluent transfer, drainage stations, coastal facilities, flood control, and other applications requiring reliable high-volume wastewater pumping.

• High Flow Capacity of 1,000 m³/h: Designed for large-volume wastewater transfer, suitable for sewage lift stations, stormwater drainage, industrial wastewater systems, and emergency flood-control projects.
• 316 Stainless Steel Construction: Provides improved corrosion resistance for wastewater, humid environments, and liquids containing moderate levels of salt or corrosive substances.
• 2205 Duplex Stainless Steel Shaft: Offers high mechanical strength with excellent corrosion resistance, including improved resistance to pitting, crevice corrosion, and stress-corrosion cracking.
• 90 kW Four-Pole Submersible Motor: Matched to the pump's hydraulic components for high-flow, medium-to-low-head applications with reduced operating noise.
• Designed for Wastewater Applications: Hydraulic passage configured to handle wastewater containing suspended solids and particles.
• Convenient Installation and Maintenance: Can be supplied with automatic coupling system for easy installation and maintenance without requiring personnel to enter the wet well.

• Municipal wastewater treatment plants
• Sewage lift stations and drainage pumping stations
• Stormwater collection and flood-control systems
• Industrial wastewater and process water transfer
• Chemical, paper, textile, food, and manufacturing plants
• Coastal facilities, ports, and humid salt-containing environments
• Underground garages, basements, and utility tunnels
• River management and landscape water circulation
• Construction-site drainage
• Wastewater containing suspended solids or particles

To determine whether the 350WQP1000-18-90kW-4 is suitable for your project, please provide:

• Required flow rate and total dynamic head
• Pipe diameter, pipe length, and number of valves and bends
• Liquid name, temperature, density, and pH value
• Chloride concentration and other corrosive components
• Maximum particle size, solids concentration, and fiber content
• Wet-well depth and operating liquid level
• Installation method
• Power supply voltage and frequency
• Variable-frequency, explosion-proof, or remote-control requirements
• Required operating hours and standby pump arrangement

• Inspect the pump, cable, mechanical seals, and fasteners before installation
• Remove large objects that could block or entangle the impeller
• Verify the power supply voltage, phase sequence, and motor protection system
• Confirm the valve position, liquid level, and impeller rotation direction before initial operation
• Do not operate the pump below the specified minimum liquid level for extended periods
• Use overload, phase-loss, leakage, overtemperature, and seal-failure protection where applicable
• Regularly monitor operating current, vibration, noise, and insulation resistance
• Establish an appropriate inspection and cleaning schedule for corrosive or sediment-containing liquids
• Confirm that lifting equipment and chains are rated for the total pump weight
• Never lift or suspend the pump using its power cable

• What does 350WQP1000-18-90 mean? According to common submersible sewage pump model conventions: 350 indicates nominal discharge diameter of 350 mm; 1000 indicates rated flow of 1,000 m³/h; 18 indicates rated head of 18 m; 90 indicates motor power of 90 kW.
• What is the advantage of a 316 stainless steel pump with a 2205 shaft? This combination provides good corrosion resistance for wastewater with reliable shaft performance and higher mechanical strength.
• Can this pump be used for seawater? Suitability for continuous seawater service depends on chloride concentration, temperature, and complete material assessment.
• Can the pump operate with a variable-frequency drive? Yes, if the motor is suitable for VFD operation, but operating parameters should be confirmed before commissioning.
• What is the maximum solid size the pump can handle? Maximum solid passage depends on impeller type and hydraulic passage dimensions - provide particle details for appropriate selection.
• Is an automatic coupling system available? Yes, with automatic coupling base, guide rails, lifting chain, discharge accessories, and control panel.
• Is this pump suitable for continuous operation? Yes, when configured for continuous-duty applications with adequate motor cooling and within approved performance range.

• Rated flow of 1,000 m³/h
• Rated head of 18 m
• 90 kW four-pole submersible motor
• 316 stainless steel construction
• High-strength 2205 duplex stainless steel shaft
• Suitable for municipal and industrial wastewater
• Optional automatic coupling installation
• Customizable electrical, sealing, and control configurations

For the price, delivery time, performance curve, dimensional drawing, or technical proposal for the 350WQP1000-18-90kW-4 submersible sewage pump, please provide your required flow, total head, liquid composition, power supply, and installation method.

Our technical team can recommend the appropriate hydraulic configuration, motor specification, sealing system, installation accessories, and control solution for your project.