S3V02AA202N

Simple Control with Advanced Protection

The Stenner S Variable Series was designed for applications that need dependable chemical injection and operational protection without the complexity of advanced programming. Built on the same rugged platform as the S Series, these pumps provide adjustable output, leak detection, backup pump capability, and remote operation in a simple-to-use package.

Using an easy-to-adjust potentiometer, operators can set the desired feed rate and allow the pump to run continuously whenever power is available. This straightforward operation makes the S Variable Series a practical choice for water treatment, wastewater systems, commercial pools, and industrial process applications.

What separates the S Variable Series from many standard metering pumps is the built-in protection and monitoring features. The pumps continuously monitor for leaks and can be configured to stop automatically if a leak is detected. For critical applications, the transfer relay can automatically activate a backup pump if the primary pump experiences a leak, power loss, or drive fault.

The standby input also allows the pump to be remotely started or stopped from another control device, providing additional flexibility when integrating into larger treatment systems.

Key Benefits

, Simple variable-speed adjustment

, 20:1 turndown ratio

, Backup pump capability

, Built-in leak detection

, Remote start/stop functionality

, Dedicated run, leak, and transfer relays

, LED status indicators for quick troubleshooting

, NEMA 4X enclosed housing

, Indoor/outdoor installation

, Continuous-duty brushless DC motor

The S Variable Series also retains the core advantages of Stenner's peristaltic pump technology. The pumps are self-priming, capable of running dry, and can handle off-gassing solutions without losing prime. Tool-free tube replacement helps reduce maintenance time, while the enclosed housing protects internal components in demanding environments.

Available Models

, S3V: Up to 85 GPD

, S4V: Up to 150 GPD

, S5V: Up to 315 GPD

Performance Highlights

, Up to 315 GPD output

, Up to 100 PSI operating pressure

, 25-foot suction lift

, ±2% reproducibility

, NEMA 4X construction

, 2-year warranty

For facilities that want the durability and monitoring features of an industrial metering pump without extensive programming requirements, the Stenner S Variable Series delivers reliable chemical injection, built-in protection, and straightforward operation in one compact package.