Stenner S3405 S420 Series Peristaltic Pump, S34 Model 85 GPD 25 PSI with Digital Control Pad and 4-20mA Input.
Stenner S3405 S420 Series Peristaltic Pump, S34 Model 85 GPD 25 PSI with Digital Control Pad and 4-20mA Input.

S3405 Stenner S420 Series Pump- S34 Models

$2,003.77 $1,222.00

Stenner S420 Series Variable Speed Metering Pump | S3405

The Stenner S3405 is a high-capacity, variable speed peristaltic pump from the S420 Series, designed for seamless integration with automated water treatment controllers. This S34 model is the top-performing unit in its pressure class, delivering a robust 85 Gallons Per Day (GPD) at pressures up to 25 PSI.

Built for industrial-grade automation, the S420 Series is specifically engineered to pace chemical injection in direct proportion to an incoming 4-20mA analog signal. This makes the S3405 the perfect choice for high-volume applications like wastewater effluent treatment, large-scale cooling towers, and municipal well-water disinfection. The user can easily scale the pump's response to the signal or toggle to manual mode for constant-flow dosing.

Key Technical Features

  • 4-20mA Automated Dosing: Proportional chemical feed based on external analog signals, ensuring precise treatment without manual intervention.

  • 85 GPD High Output: The highest flow rate available in the S34 configuration for low-pressure systems.

  • Proactive Maintenance Alerts: Includes a programmable tube change timer that notifies the operator on the digital display when service is due.

  • Integrated Leak Detection: Features high-sensitivity sensors that stop the pump if a tube leak is detected, preventing chemical spills.

  • NEMA 4X Rated Protection: The totally enclosed polycarbonate housing is designed for washdown environments and protects internal components from corrosive vapors.

  • Peristaltic Reliability: Self-priming design that will not vapor lock from off-gassing chemicals like sodium hypochlorite and can safely run dry.

  • Tool-Less Tube Changes: Utilizing the patented QuickPro pump head, tubes can be replaced in seconds without the need for tools.

  • Complete Installation Kit: Includes foot valve, 25 PSI injection fitting, weighted suction/discharge tubing, and a spare pump tube.

View manufacturer specs here