Sensus 441-57S Medium Pressure Large Capacity Gas Regulator

  • Available Pipe Sizes: 2″, 3″, 4″ and 6″ NPT Screwed
  • Temperature Limits: Regulators may be used for flowing gas temperatures from -20ºF to 150ºF


The Model 441-57S is a spring-operated regulator that incorporate a “roll-out” diaphragm which approximates the performance of a pilot-operated regulator. The roll-out diaphragm makes this exceptional performance possible because its action reduces “droop” to a minimum.

By offering near pilot-operated performance without a pilot, the 57S regulators offer the advantages of simplicity, dependability, freedom from freeze-up, and exceptionally fast response.

This model is perfect for most intermediate and large capacity applications including gas distribution systems, district regulator sets, city gate stations, town border stations, monitoring, and a wide variety of industrial applications.


Technical Documentation


441-57S Medium Pressure Gas Regulator

General Safety for Industrial Regulators

441-57S Gas Regulator Installation and Maintenance

441-57S Gas Regulator Illustrations