IP55 Industrial Dual Pump Starter for Sewage Treatment & Aquaculture Farms

Suitable for backup pumps in outdoor sewage treatment plants and duplex pump rotation in coastal aquaculture farms. The stainless steel structure resists wind, rain, and salt spray corrosion, supports the Modbus protocol for connection to outdoor industrial central control systems, and serves as a dependable IP55 corrosion-resistant pump controller.

Stainless Steel Shell for Worry-Free Outdoor Use

The stainless steel intelligent duplex water pump starter adopts a stainless steel shell, reaching the IP55 protection level. It effectively prevents dust and water ingress, adapts to outdoor or humid environments, and offers strong corrosion resistance and durability.

Modular Design for Easy Maintenance

The internal electrical structure is clear, and the terminal blocks are uniformly arranged, facilitating on-site installation and maintenance. Each module has a clear fault partition, enabling more efficient maintenance.

This stainless steel intelligent duplex water pump starter supports 8 operation modes to meet diverse operational needs:

Single Pump Operation

When one pump is under maintenance or offline, the other pump operates continuously to ensure uninterrupted supply.

Simultaneous Dual-Pump Start

Both pumps start and run together to meet high peak demands.

Duty/Standby–Pump A Duty, Pump B Standby

Pump A runs as the primary unit, while Pump B stays on standby and starts automatically if Pump A fails.

Duty/Standby–Pump B Duty, Pump A Standby

Pump B runs as the primary unit, with Pump A as the backup.

Alternating Duty

Pumps alternate automatically based on runtime or operating cycles, balancing wear and extending service life.

Timed Rotation Alternation

In continuous-duty systems (e.g., Data center cooling system), pumps rotate at preset intervals to balance usage, even without load changes.

Parallel Alternation with Load Sharing

Pumps run alternately or simultaneously depending on demand, sharing the load intelligently for efficiency.

Sensor-Free Timer Operation

Applied where pumps need to start/stop at set intervals to meet periodic demand.

Q1: What should be done if the pump starts and stops frequently due to water tank oscillation?

A1: You can use the signal delay start-stop settings (codes: P102 and P103) to delay the pump's start or stop when the liquid level changes. This prevents frequent start-stop caused by slight water tank oscillation, stainless steel intelligent duplex water pump starter effectively reducing mechanical wear and extending the equipment's service life.

Q2: How many float switches can be connected to the lower water tank during water supply?

A2: During water supply, two float switches can be connected to the lower water tank: one is used to detect the start liquid level, ensuring the water pump starts only when the liquid level is sufficient to avoid reduced efficiency and mechanical damage caused by air suction; the other is used for dry-running protection, which stops the pump in a timely manner when the liquid level is too low to prevent damage from the pump's no-load operation.