Model 441-57S & Model 461-57S

The Sensus 461-57S and 441-57S medium pressure regulators are spring-operated models that incorporate a “roll-out” diaphragm, similar to the performance found in pilot-operated regulators. 

The action of the roll-out diaphragm reduces “droop,” which is the fall off in outlet pressure as a spring regulator opens to increase flow. This makes the regulators’ exceptional performance possible. By offering near-pilot-operated regulator performance without a pilot, the 57S-series offers simplicity, dependability, and exceptionally fast response. 

Both models are perfect for most intermediate and large-capacity applications:

• Gas distribution systems
• District regulator sets
• City gate stations
• Town border stations
• Monitoring
• A wide variety of industrial applications.

These workhorses of the industry have been recognized for their dependable service for nearly 70 years.